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searching for Stereoselectivity 155 found (241 total)

alternate case: stereoselectivity

Horner–Wadsworth–Emmons reaction (963 words) [view diff] exact match in snippet view article find links to article

modifying the structure of the phosphonate. They found greater (E)-stereoselectivity with the following conditions: Increasing steric bulk of the aldehyde
Jacobsen epoxidation (802 words) [view diff] exact match in snippet view article find links to article
double bond in allylic alcohols). The Jacobsen epoxidation gains its stereoselectivity from a C2 symmetric manganese(III) salen-like ligand, which is used
Lectka enantioselective beta-lactam synthesis (317 words) [view diff] exact match in snippet view article find links to article
are sterically demanding groups that can induce a high degree of stereoselectivity. The tertiary amine contained within the quinuclidine can act as a
6+4 Cycloaddition (1,075 words) [view diff] exact match in snippet view article find links to article
periselectivity arise in addition to the usual concerns about regio- and stereoselectivity. Six-atom pi systems that have been employed in the reaction include
Meerwein–Ponndorf–Verley reduction (1,512 words) [view diff] exact match in snippet view article find links to article
reduction. Both ruthenium and samarium have shown high yields and high stereoselectivity in the reduction of carbonyls to alcohols. The ruthenium catalyst
Kharasch–Sosnovsky reaction (1,283 words) [view diff] exact match in snippet view article find links to article
variants of this transformation have been developed. To achieve the stereoselectivity, employing bidentate chiral ligand into the reactions is the most
Glycosidic bond (2,047 words) [view diff] exact match in snippet view article find links to article
trichloroacetimidate to encourage B stereoselectivity through the gauche effect. This reasonable stereoselectivity is clear through visualization of the
Sharpless asymmetric dihydroxylation (2,189 words) [view diff] no match in snippet view article find links to article
Sharpless asymmetric dihydroxylation (also called the Sharpless bishydroxylation) is the chemical reaction of an alkene with osmium tetroxide in the presence
Iodolactonization (1,072 words) [view diff] exact match in snippet view article find links to article
without existing stereocenters, Bartlett and coworkers found that stereoselectivity was achievable. They were able to synthesize the cis and trans five
Endo-exo isomerism (136 words) [view diff] exact match in snippet view article find links to article
terms endo and exo are used in a similar sense in discussions of the stereoselectivity in Diels–Alder reactions. IUPAC, Compendium of Chemical Terminology
Kumada coupling (2,238 words) [view diff] no match in snippet view article find links to article
In organic chemistry, the Kumada coupling is a type of cross coupling reaction, useful for generating carbon–carbon bonds by the reaction of a Grignard
Gilbert Stork (1,256 words) [view diff] exact match in snippet view article find links to article
as well as the first natural product to be synthesised with high stereoselectivity. Stork was also an accomplished mentor of young chemists and many
Crabtree's catalyst (1,187 words) [view diff] exact match in snippet view article find links to article
available and known for its directed hydrogenation to give trans stereoselectivity with respective of directing group. The complex has a square planar
Epoxidation of allylic alcohols (1,203 words) [view diff] exact match in snippet view article find links to article
Although the presence of an allylic alcohol does lead to increased stereoselectivity, the rates of these reactions are slower than systems lacking alcohols
Lewis acid catalysis (5,017 words) [view diff] exact match in snippet view article find links to article
reactions, Lewis acid catalysts are able to impose regioselectivity and stereoselectivity in many cases. Early developments in Lewis acid reagents focused on
Aza-Diels–Alder reaction (973 words) [view diff] exact match in snippet view article find links to article
proceed with moderate stereoselectivity. (8) Lewis-acid catalyzed reactions of sulfonyl imines also exhibit moderate stereoselectivity. (9) Simple unactivated
Methyl cyanoformate (193 words) [view diff] exact match in snippet view article find links to article
"C-Acylation of Enolates by Methyl Cyanoformate: An Examination of Site- and Stereoselectivity"Synlett 1990; 1990: 169–170. doi:10.1055/s-1990-21025 Crabtree, Simon
4+4 Photocycloaddition (917 words) [view diff] exact match in snippet view article find links to article
within [4+4] reactions is not common, however it does exist. Enol-exo stereoselectivity is possible using certain cross-linking techniques and has been met
Shi epoxidation (1,183 words) [view diff] exact match in snippet view article find links to article
Generation of (R,R) epoxides from corresponding alkenes increases in stereoselectivity with increased steric bulk of substituent R groups (especially in
Staudinger synthesis (1,135 words) [view diff] exact match in snippet view article find links to article
Jiao, Lei; Liang, Yong; Xu, Jiaxi (2006). "Origin of the Relative Stereoselectivity of the β-Lactam Formation in the Staudinger Reaction". Journal of
Metallo-ene reaction (1,216 words) [view diff] exact match in snippet view article find links to article
transition state is involved in metallo-ene reaction, high level of stereoselectivity can be expected due to the conservation of orbital symmetry. Indeed
Allylic strain (2,466 words) [view diff] exact match in snippet view article find links to article
groups. Polarity also has an effect on allylic strain. In terms of stereoselectivity, polar groups act like large, bulky groups. Even though two groups
Hydrofunctionalization (216 words) [view diff] exact match in snippet view article find links to article
Catalysts are frequently employed to control the chemo-, regio-, and stereoselectivity of hydrofunctionalization reactions. Some of the better known classes
Chiral Lewis acid (1,242 words) [view diff] exact match in snippet view article find links to article
elimination. The stereoselectivity of these reactions is usually poor. Lanthanum(III)-containing CLAs have been demonstrated to improve stereoselectivity. Similarly
Glutamate transporter (2,828 words) [view diff] exact match in snippet view article find links to article
tissues, including the heart, liver, testes, and bone. They exhibit stereoselectivity for L-glutamate but transport both L-aspartate and D-aspartate. The
Radical cyclization (1,902 words) [view diff] no match in snippet view article find links to article
Radical cyclization reactions are organic chemical transformations that yield cyclic products through radical intermediates. They usually proceed in three
Organostannane addition (971 words) [view diff] exact match in snippet view article find links to article
selective reactivity. Chiral allylstannanes often react with good stereoselectivity to give single diastereomers. Models explaining the sense of selectivity
Juliá–Colonna epoxidation (2,152 words) [view diff] no match in snippet view article find links to article
The Juliá–Colonna epoxidation is an asymmetric poly-leucine catalyzed nucleophilic epoxidation of electron deficient olefins in a triphasic system. The
Trimethylenemethane cycloaddition (1,457 words) [view diff] exact match in snippet view article find links to article
alkene must be used or the cycloaddition must be intramolecular. Stereoselectivity and site selectivity may also be higher in intramolecular variants
Α-Ketol rearrangement (1,281 words) [view diff] exact match in snippet view article find links to article
In this case, Lewis-acidic conditions switched the sense of stereoselectivity observed for the base-catalyzed process. (3) α-Hydroxy imines may
Xibenolol (88 words) [view diff] exact match in snippet view article find links to article
original on March 7, 2012. Honma S, Ito T, Kambegawa A (February 1985). "Stereoselectivity in the metabolism of the beta-adrenergic blocking agent,
Heteroatom (323 words) [view diff] exact match in snippet view article find links to article
ISBN 978-0131275676. Senda, Y. (2002). "Role of the heteroatom on stereoselectivity in the complex metal hydride reduction of six-membered cyclic ketones"
Afurolol (81 words) [view diff] exact match in snippet view article find links to article
Kuramoto S, Tsuzuki D, Hichiya H, Tamagake K, Yamamoto S (May 2003). "Stereoselectivity in the oxidation of bufuralol, a chiral substrate, by human cytochrome
Organolithium reagent (5,971 words) [view diff] exact match in snippet view article find links to article
alcohol. Addition of lithium salts such as LiClO4 can improve the stereoselectivity of the reaction. When the ketone is sterically hindered, using Grignard
Eudysmic ratio (1,250 words) [view diff] exact match in snippet view article find links to article
1002/med.2610060404. ISSN 0198-6325. PMID 3534485. S2CID 36115871. "Stereoselectivity of pesticides: Biological and chemical problems edited by E.J. Ariëns
Chinese VX (205 words) [view diff] exact match in snippet view article find links to article
Daan; Nachon, Florian (13 May 2011). "Structural Study of the Complex Stereoselectivity of Human Butyrylcholinesterase for the Neurotoxic V-agents". Journal
N-Sulfinyl imine (1,583 words) [view diff] exact match in snippet view article find links to article
sulfinyl group attached to nitrogen. These imines display useful stereoselectivity reactivity and due to the presence of the chiral electron withdrawing
Chiral switch (2,720 words) [view diff] exact match in snippet view article find links to article
degree of enantioselectivity of the biological activity. In case of stereoselectivity in action only one of the components in the racemic mixture is truly
Sodium borohydride (2,615 words) [view diff] exact match in snippet view article find links to article
mechanism, transition state geometry, and a comment on the origin of stereoselectivity". The Journal of Organic Chemistry. 42 (6): 1108–1109. doi:10.1021/jo00426a048
Carbonyl allylation (1,018 words) [view diff] exact match in snippet view article find links to article
Kumada, Makoto (1982-09-01). "Optically active allylsilanes. 2. High stereoselectivity in asymmetric reaction with aldehydes producing homoallylic alcohols"
Thomson (unit) (735 words) [view diff] exact match in snippet view article
"Urinary naphthalene mercapturates as biomarkers of exposure and stereoselectivity of naphthalene epoxidation". Drug Metab. Dispos. 30 (3): 247–53. doi:10
Iodine azide (579 words) [view diff] exact match in snippet view article find links to article
alkene double bond via both ionic and radical mechanisms, giving anti stereoselectivity. Addition of IN3 to an alkene followed by reduction with lithium aluminium
Shapiro reaction (1,020 words) [view diff] exact match in snippet view article find links to article
0.05 equivalents in the case of a 30mmol scale reaction. The high stereoselectivity is obtained by the preferential abstraction of the α-methylene hydrogen
Enantiomeric excess (800 words) [view diff] exact match in snippet view article find links to article
and "% de" Make Sense as Expressions of Stereoisomer Composition or Stereoselectivity? Robert E. Gawley J. Org. Chem.; 2006; 71(6) pp 2411 - 2416; doi:10
Organoindium chemistry (1,134 words) [view diff] exact match in snippet view article find links to article
solubility, rate of the reaction, yield, stability, regioselectivity, and stereoselectivity. Indium mediates the allylation of a wide variety of electrophiles
Glycosyl (376 words) [view diff] exact match in snippet view article find links to article
Relationship between Glycosyl Acceptor Reactivity and Glycosylation Stereoselectivity". Angewandte Chemie International Edition. 57 (27): 8240–8244. doi:10
Diimide (606 words) [view diff] exact match in snippet view article find links to article
of hydrogen from one face of the substrate resulting in the same stereoselectivity as metal-catalysed syn addition of H2. The only coproduct released
Vanadyl acetylacetonate (468 words) [view diff] exact match in snippet view article find links to article
(1979). "Vanadium-catalyzed epoxidation of cyclic allylic alcohols. Stereoselectivity and stereocontrol mechanism". Journal of the American Chemical Society
Agostic interaction (870 words) [view diff] exact match in snippet view article find links to article
the growing polymer chain. This increased rigidity influences the stereoselectivity of the polymerization process. The term agostic is reserved to describe
HA-966 (549 words) [view diff] exact match in snippet view article find links to article
Rapastinel NRX-1074 Vartanian MG, Taylor CP (Nov 1991). "Different stereoselectivity of the enantiomers of HA-966 (3-amino-1-hydroxy-2-pyrrolidinone) for
Ring-closing metathesis (4,700 words) [view diff] exact match in snippet view article find links to article
possible geometric isomers, either E- or Z-isomer, may be formed. Stereoselectivity is dependent on the catalyst, ring strain, and starting diene. In
T-HCA (500 words) [view diff] exact match in snippet view article find links to article
cyclic gamma-hydroxybutyrate (GHB) analogs with high affinity and stereoselectivity of binding to GHB sites in rat brain". The Journal of Pharmacology
Wittig reaction (1,600 words) [view diff] exact match in snippet view article find links to article
reaction control. E. Vedejs has put forth a theory to explain the stereoselectivity of stabilized and unstabilized Wittig reactions. Strong evidence indicated
HOCPCA (88 words) [view diff] exact match in snippet view article find links to article
"Novel Cyclic γ-Hydroxybutyrate (GHB) Analogs with High Affinity and Stereoselectivity of Binding to GHB Sites in Rat Brain". The Journal of Pharmacology
Fructose-bisphosphate aldolase (1,622 words) [view diff] exact match in snippet view article find links to article
Herzberg O (2009). "Structural insights into the substrate binding and stereoselectivity of giardia fructose-1,6-bisphosphate aldolase". Biochemistry. 48 (14):
Synthesis of nucleosides (1,781 words) [view diff] exact match in snippet view article find links to article
intermediate is much lower than the stereoselectivity of attack on cyclic cation 1. Because of this low stereoselectivity, deoxyribonucleosides are usually
Nitro compound (1,766 words) [view diff] exact match in snippet view article find links to article
allyl Grignard reagents to alkyl nitro compounds: chemo-, regio-, and stereoselectivity of the reaction". Journal of Organic Chemistry. 57 (22). American
Reductions with hydrosilanes (1,452 words) [view diff] exact match in snippet view article find links to article
reductions in acidic media. 10. Ionic hydrogenation of cycloalkenes. Stereoselectivity and mechanism". The Journal of Organic Chemistry. 43 (4): 693–696
Sarpogrelate (546 words) [view diff] exact match in snippet view article find links to article
enantiomers of its major metabolite: 5-HT2A receptor specificity, stereoselectivity and modulation of ritanserin-induced depression of 5-HT contractions
Torcetrapib (1,638 words) [view diff] exact match in snippet view article find links to article
the CETP Inhibitor Torcetrapib: The Resolution Route and Origin of Stereoselectivity in the Iminium Ion Cyclization". Organic Process Research & Development
Phenylethanolamine (1,633 words) [view diff] exact match in snippet view article find links to article
"Importance of the aromatic ring in adrenergic amines. 7. Comparison of the stereoselectivity of norepinephrine N-methyltransferase for aromatics. Nonaromatic substrates
VX (nerve agent) (5,384 words) [view diff] exact match in snippet view article
Arie; Marcus, Dino; Velan, Baruch; Shafferman, Avigdor (2004). "Stereoselectivity toward VX is Determined by Interactions with Residues of the Acyl
Methylcyclohexene (906 words) [view diff] exact match in snippet view article find links to article
its end products as carbonyl compounds. The regioselectivity and stereoselectivity of hydrosilylation of 1-methylcyclohexene with chloro(methyl)silanes
Dynamic kinetic resolution in asymmetric synthesis (1,466 words) [view diff] exact match in snippet view article find links to article
formation by coordinating with the aldehyde oxygen. This greatly improves stereoselectivity and yield. Ward and his associates also found that by adding trace
MT-45 (1,168 words) [view diff] exact match in snippet view article find links to article
potent opiate-like analgesics; the unusual relationships between stereoselectivity and affinity to opioid receptor". Life Sciences. 33 (Suppl 1): 431–4
Hydrogen-bond catalysis (3,988 words) [view diff] exact match in snippet view article find links to article
catalysts can create an asymmetric ion pair and induce remarkable stereoselectivity. One of the first reactions proposed to proceed through anion-binding
Chiral drugs (4,547 words) [view diff] exact match in snippet view article find links to article
reside predominantly in one specific enantiomeric form. In case of stereoselectivity in action only one of the components in the racemic mixture is truly
James L. Leighton (417 words) [view diff] exact match in snippet view article find links to article
Chem. Soc. 2006, 128, 2796-2797. doi:10.1021/ja058692k Origins of Stereoselectivity in Strain-Release Allylations. Angew. Chem. Int. Ed. 2004, 44, 938-941
Geoffrey W. Coates (891 words) [view diff] exact match in snippet view article find links to article
Robert M. Waymouth as a Hertz Fellow. His thesis work investigated the stereoselectivity of metallocene-based Ziegler-Natta catalysts. He was awarded a Ph
Troparil (1,036 words) [view diff] exact match in snippet view article find links to article
Synthesis of 2β-Carbomethoxy-3β-Phenyltropane Derivatives. Enhanced Stereoselectivity Observed for the Conjugate Addition Reaction of Phenylmagnesium Bromide
Atropisomer (1,902 words) [view diff] exact match in snippet view article find links to article
Zask, Arie; Murphy, John; Ellestad, George A. (2013). "Biological Stereoselectivity of Atropisomeric Natural Products and Drugs". Chirality. 25 (5): 265–274
Biosynthesis of cocaine (803 words) [view diff] exact match in snippet view article find links to article
(S)-enantiomer can cyclize to form the tropane ring system of cocaine. The stereoselectivity of this reaction was further investigated through study of prochiral
Tunicamycin (734 words) [view diff] exact match in snippet view article find links to article
doi:10.1038/nchem.1351. PMID 22717438. Giese B (August 1989). "The Stereoselectivity of Intermolecular Free Radical Reactions [New Synthetic Methods (78)]"
Cytochrome P450 engineering (1,350 words) [view diff] exact match in snippet view article find links to article
multiple substrate docking orientations, resulting in poor regio-/stereoselectivity. Directed evolution is an enzyme engineering strategy designed to
Saturation mutagenesis (732 words) [view diff] exact match in snippet view article find links to article
Saturation Mutagenesis Accelerates Laboratory Evolution of Enzyme Stereoselectivity: Rigorous Comparison with Traditional Methods". Journal of the American
Flavin-containing monooxygenase 3 (2,453 words) [view diff] exact match in snippet view article find links to article
sulfur-containing substrates and in some cases, does so with great stereoselectivity. ... For amines with smaller aromatic substituents such as phenethylamines
Enamine (1,800 words) [view diff] exact match in snippet view article find links to article
proceed through chiral enamine intermediates which allow for good stereoselectivity. This is important, in particular in the field of natural product
Simmons–Smith reaction (2,502 words) [view diff] exact match in snippet view article find links to article
"Density Functional Theory Study of the Mechanism and Origins of Stereoselectivity in the Asymmetric Simmons–Smith Cyclopropanation with Charette Chiral
Gerhard Ecker (687 words) [view diff] exact match in snippet view article find links to article
Klepsch, F.; Parveen, Z.; Chiba, P.; Ecker, G. F. (2011). "Probing the stereoselectivity of P-glycoprotein—synthesis, biological activity and ligand docking
Intramolecular aglycon delivery (907 words) [view diff] exact match in snippet view article find links to article
of oligosaccharides, preferably in a stereoselective manner. The stereoselectivity of these reactions has been shown to be affected by both the nature
Diisopinocampheylborane (871 words) [view diff] exact match in snippet view article find links to article
of the methyl in α-pinene. The additional steric bulk improves the stereoselectivity of the reduction. Diisopinocampheylborane reacts with methanol to
Prelog strain (1,185 words) [view diff] exact match in snippet view article find links to article
S2CID 250856875. Greve, Björn; Imming, Peter (1997). "Regio- and Stereoselectivity of Water Elimination as a Function of Ring Size". Journal of Organic
Pauson–Khand reaction (2,913 words) [view diff] exact match in snippet view article find links to article
Philip; Principe, Lawrence M. (January 1985). "Origins of 1,2- and 1,3-stereoselectivity in dicobaltoctacarbonyl alkene-alkyne cyclizations for the synthesis
Tutin (toxin) (2,738 words) [view diff] exact match in snippet view article
published about the synthesis of complex glycosides with anomeric β-stereoselectivity. GABA (γ-aminobutyric acid) is a major inhibitory neurotransmitter
WIN-35428 (1,004 words) [view diff] exact match in snippet view article find links to article
synthesis of 2β-carbomethoxy-3β-phenyltropane derivatives. Enhanced stereoselectivity observed for the conjugate addition reaction of phenylmagnesium bromide
Octopine (257 words) [view diff] exact match in snippet view article find links to article
Manfred K. (2008). "A Structural Basis for Substrate Selectivity and Stereoselectivity in Octopine Dehydrogenase from Pecten maximus". Journal of Molecular
Glycosylation (3,448 words) [view diff] exact match in snippet view article find links to article
regioselectivity. The other challenge of chemical glycosylation is the stereoselectivity that each glycosidic linkage has two stereo-outcomes, α/β or cis/trans
CP 47,497 (871 words) [view diff] exact match in snippet view article find links to article
Johnson MR, Melvin LS, Martin BR (December 1988). "Pharmacology and stereoselectivity of structurally novel cannabinoids in mice". The Journal of Pharmacology
7beta-hydroxysteroid dehydrogenase (NADP+) (292 words) [view diff] exact match in snippet view article
"Structural and biochemical insights into 7β-hydroxysteroid dehydrogenase stereoselectivity". Proteins. 84 (6): 859–65. doi:10.1002/prot.25036. PMID 27006087
Integrasone (1,175 words) [view diff] exact match in snippet view article find links to article
this reaction express their “delight”. It is speculated that this stereoselectivity for product 12 is due to the directing influence of the acetate group
N-Arachidonoyl dopamine (1,484 words) [view diff] exact match in snippet view article find links to article
R.; Melvin, L. S.; Martin, B. R. (1988-12-01). "Pharmacology and stereoselectivity of structurally novel cannabinoids in mice". The Journal of Pharmacology
Nitroethylene (846 words) [view diff] exact match in snippet view article find links to article
1007/s10593-009-0318-3. ISSN 0009-3122. Jasiński, Radomir (2009-09-11). "Regio- and stereoselectivity of [2+3]cycloaddition of nitroethene to (Z)-N-aryl-C-phenylnitrones"
Dirigent protein (965 words) [view diff] exact match in snippet view article find links to article
concentrations of dirigent proteins present. The mechanism by which this stereoselectivity is achieved is not well understood at this time. However, since no
John R. Falck (1,552 words) [view diff] exact match in snippet view article find links to article
"Endogenous epoxyeicosatrienoic acids. Cytochrome P-450 controlled stereoselectivity of the hepatic arachidonic acid epoxygenase". The Journal of Biological
Enantioselective synthesis (4,726 words) [view diff] exact match in snippet view article find links to article
doi:10.1351/goldbook.S05990 Gal, Joseph (2012). "The Discovery of Stereoselectivity at Biological Receptors: Arnaldo Piutti and the Taste of the Asparagine
Chirality (chemistry) (3,629 words) [view diff] exact match in snippet view article
1016/0040-4020(59)80014-4. Gal, Joseph (2012). "The Discovery of Stereoselectivity at Biological Receptors: Arnaldo Piutti and the Taste of the Asparagine
Morphine (13,710 words) [view diff] exact match in snippet view article find links to article
(C5, C6, C9, C13 and C14) with morphine exhibiting a high degree of stereoselectivity of analgesic action."[better source needed][needs update] Morphine
Glycorandomization (1,507 words) [view diff] exact match in snippet view article find links to article
alkoxylamine handle. Unlike the enzymatic approach, the anomeric stereoselectivity of the chemoselective method depends upon the reducing sugar used
Levonantradol (1,138 words) [view diff] exact match in snippet view article find links to article
Johnson MR, Melvin LS, Martin BR (December 1988). "Pharmacology and stereoselectivity of structurally novel cannabinoids in mice". The Journal of Pharmacology
Reductions with diimide (966 words) [view diff] exact match in snippet view article find links to article
state of the hydrogen transfer step is likely early; however, high stereoselectivity has been obtained in many reductions of chiral alkenes. (3) The order
Boranylium ions (2,860 words) [view diff] exact match in snippet view article find links to article
the stereoselectivity of this reaction is a result of aldehyde-catalyst association in the pre-transition state which governs stereoselectivity. The
Isoflurane (1,716 words) [view diff] exact match in snippet view article find links to article
PMID 1391078. Bu W, Pereira LM, Eckenhoff RG, Yuki K (2014-05-06). "Stereoselectivity of isoflurane in adhesion molecule leukocyte function-associated antigen-1"
Robert H. Crabtree (1,688 words) [view diff] exact match in snippet view article find links to article
as the active metal, displays exceptional efficiency, regio- and stereoselectivity in hydrogenation reactions. Notably, when terpinen-4-ol undergoes
Pancratistatin (1,760 words) [view diff] exact match in snippet view article find links to article
in the presence of LHMDS in THF forms (E)-olefin 5 with very high stereoselectivity in 60% yield. Only less than 1% of (Z)-olefin was detected in the
Allylprodine (491 words) [view diff] exact match in snippet view article find links to article
(+/-)-allylprodine diastereomers. The role of the allyl group in conferring high stereoselectivity and potency at analgetic receptors". Journal of Medicinal Chemistry
D-amino-acid transaminase (494 words) [view diff] exact match in snippet view article find links to article
structure of a D-amino acid aminotransferase: how the protein controls stereoselectivity". Biochemistry. 34 (30): 9661–9. doi:10.1021/bi00030a002. PMID 7626635
(E)-Stilbene (1,849 words) [view diff] exact match in snippet view article
doi:10.1021/jo01059a097. Bianchini, Roberto; Chiappe, Cinzia (1992). "Stereoselectivity and reversibility of electrophilic bromine addition to stilbenes in
Alison R. H. Narayan (1,075 words) [view diff] exact match in snippet view article find links to article
Tetrahydrofurans from γ-Hydroxy Terminal Alkenes: Scope, Limitations, and Stereoselectivity". The Journal of Organic Chemistry. 70 (8): 3099–3107. doi:10.1021/jo050022+
Ben Feringa (3,609 words) [view diff] exact match in snippet view article find links to article
serve as a substrate, they hypothesized that they would increase stereoselectivity in C–P coupling processes with aryl compounds, and were delighted
Tetrad test (472 words) [view diff] exact match in snippet view article find links to article
Johnson, M.R.; Melvin, L.S.; Martin, B.R. (1988). Pharmacology and stereoselectivity of structurally novel cannabinoids in mice. J Pharmacol Exp Ther 247:
Chain walking (1,433 words) [view diff] exact match in snippet view article find links to article
Ligand design influences not only CW extent but also regio- and stereoselectivity and also the sensitivity of the catalyst to undergo chain-breaking
Bis(2-ethylhexyl) phthalate (3,796 words) [view diff] exact match in snippet view article
Cancer. 1982. p. 271. ISBN 978-92-832-1229-4. Sheikh, I. A. (2016) Stereoselectivity and the potential endocrine disrupting activity of di-(2-ethylhexyl)phthalate
Ketimine Mannich reaction (3,407 words) [view diff] exact match in snippet view article find links to article
3-aryl-3-hydroxyisoindolin-1-ones in 2019. The reaction yields a high stereoselectivity under high temperature as the adjacent quaternary and stereogenic
Levomethamphetamine (5,445 words) [view diff] exact match in snippet view article find links to article
Everhart T, Jacob Iii P, Jones R, Mendelson J (February 2010). "Stereoselectivity in the human metabolism of methamphetamine". Br J Clin Pharmacol.
(+)-CPCA (4,044 words) [view diff] exact match in snippet view article
synthesis of 2β-carbomethoxy-3β-phenyltropane derivatives. Enhanced stereoselectivity observed for the conjugate addition reaction of phenylmagnesium bromide
APC superfamily (1,726 words) [view diff] exact match in snippet view article find links to article
Grell E, Michel H (January 2014). "A L-lysine transporter of high stereoselectivity of the amino acid-polyamine-organocation (APC) superfamily: production
RAC 421-II (242 words) [view diff] exact match in snippet view article find links to article
"Chiral aspects of drug action at ion channels: a commentary on the stereoselectivity of drug actions at voltage-gated ion channels with particular reference
Payne rearrangement (1,773 words) [view diff] exact match in snippet view article find links to article
dihydroxylation may be used to synthesize epoxy alcohols with high stereoselectivity, and some of the methods relying on dihydroxylation avoid the use
Oxiranol (133 words) [view diff] exact match in snippet view article find links to article
"Radical routes to interstellar glycolaldehyde. The possibility of stereoselectivity in gas-phase polymerization reactions involving CH2O and ·CH2OH".
Torreyanic acid (1,096 words) [view diff] exact match in snippet view article find links to article
is widely used in synthesis due to its facile nature and reio- and stereoselectivity under mild conditions. This reaction is very useful for forming carbon-carbon
Oxocarbenium (2,170 words) [view diff] exact match in snippet view article find links to article
(2019-04-18). "Defining the SN1 Side of Glycosylation Reactions: Stereoselectivity of Glycopyranosyl Cations". ACS Central Science. 5 (5): 781–788. doi:10
Manganese-mediated coupling reactions (1,016 words) [view diff] exact match in snippet view article find links to article
resulting imine leads to polycyclic ketones in moderate yields with good stereoselectivity. (10) Manganese-mediated couplings have been used for the synthesis
D-octopine dehydrogenase (955 words) [view diff] exact match in snippet view article find links to article
Grieshaber MK (2008). "A Structural Basis for Substrate Selectivity and Stereoselectivity in Octopine Dehydrogenase from Pecten maximus". Journal of Molecular
Metal-catalyzed cyclopropanations (1,251 words) [view diff] exact match in snippet view article find links to article
mechanism has been rationalized based on product distribution and stereoselectivity. Attack of the diazo compound on the metal center generates a zwitterionic
Long-chain-alcohol oxidase (954 words) [view diff] exact match in snippet view article find links to article
Oehme, Günther; Müller, Hans-Georg (1992). "Substrate specificity and stereoselectivity of fatty alcohol oxidase from the yeast Candida maltosa". Applied
Oxford Chemistry Primers (127 words) [view diff] exact match in snippet view article find links to article
62 Inorganic Spectroscopic Methods Alan K. Brisdon 18 June 1998 63 Stereoselectivity in Organic Synthesis Garry Procter 23 April 1998 64 Electroanalysis
Alkenylaluminium compounds (1,660 words) [view diff] exact match in snippet view article find links to article
avoids the problem of competitive metalation of terminal alkenes. The stereoselectivity of hydroalumination can be altered through a change in solvent: tertiary
Late-stage functionalization (974 words) [view diff] exact match in snippet view article find links to article
Bonds in Artemisinin via P450 Catalysts with Fine-Tuned Regio- and Stereoselectivity". Journal of the American Chemical Society. 134 (45): 18695–18704
W. Clark Still (2,031 words) [view diff] exact match in snippet view article find links to article
2-trifluoroethoxy groups on the phosphonate component reversed the stereoselectivity to produce predominantly Z-alkenes. The use of a non-coordinating
Reductions with metal alkoxyaluminium hydrides (1,747 words) [view diff] exact match in snippet view article find links to article
I is favored in the absence of polar groups on the α carbon, and stereoselectivity increases as the size of the achiral ketone substituent (R) increases
Strictosidine synthase (1,585 words) [view diff] exact match in snippet view article find links to article
chirality. Also, binding with various secologanin analogs with the same stereoselectivity as that of 3-alpha(S)-strictosidine can be achieved through the mutation
Cocaine (18,933 words) [view diff] exact match in snippet view article find links to article
(S)-enantiomer can cyclize to form the tropane ring system of cocaine. The stereoselectivity of this reaction was further investigated through study of prochiral
James C. Stevens (1,362 words) [view diff] exact match in snippet view article find links to article
non-conventional, counter-intuitive, subtle, and have an unprecedented stereoselectivity along with remarkable high temperature performance. This discovery
Cucurbituril (2,250 words) [view diff] exact match in snippet view article find links to article
the photochemical cyclization to give cyclobutane dimer with a 19:1 stereoselectivity for the syn configuration when bound to CB[8]. In the absence of CB[8]
Protecting group (6,755 words) [view diff] exact match in snippet view article find links to article
Detty: "Debrominations of vic-Dibromides with Diorganotellurides. 1. Stereoselectivity, Relative Rates, and Mechanistic Implications", in: J. Org. Chem.
John P. Wolfe (1,526 words) [view diff] exact match in snippet view article find links to article
(substrates bearing N-aryl, N-acetyl, N-Boc, and N-Cbz groups) and good stereoselectivity. The reaction is initiated by oxidative addition of the aryl bromide
Spiroketals (528 words) [view diff] exact match in snippet view article find links to article
several miscellaneous methods have emerged in order to control the stereoselectivity of the spirocyclisation. Flies of the Tephritidae and Drosophilidae
Intramolecular Heck reaction (1,874 words) [view diff] exact match in snippet view article find links to article
Bidentate phosphine ligands are common in asymmetric reactions to enhance stereoselectivity. A wide variety of bases may be used, and the base is often employed
Dye-ligand affinity chromatography (1,343 words) [view diff] exact match in snippet view article find links to article
has a wide specificity for nucleotide-binding proteins or just a stereoselectivity electrostatic binding. It can be used to purify interferons, dehydrogenases
Salomon Z. Langer (1,665 words) [view diff] exact match in snippet view article find links to article
Lee Clinical Neuropharmacology - CLIN NEUROPHARMACOL , vol. 7, 1984 Stereoselectivity in the metabolism of 3H-noradrenaline during uptake into and efflux
Reductions with samarium(II) iodide (1,965 words) [view diff] exact match in snippet view article
have the disadvantage that they are not stereospecific; however, stereoselectivity is higher in some cases when SmI2 is used in place of other reducing
Reactions of organocopper reagents (1,732 words) [view diff] exact match in snippet view article find links to article
lithium dialkylcuprates and primary or secondary amides. Because the stereoselectivity of carbocupration is extremely high, the reaction has been applied
2-Norbornyl cation (5,919 words) [view diff] exact match in snippet view article find links to article
epimer of product produced was less than 0.02%, proving the high stereoselectivity of the reaction. When a single enantiomer of 2-exo-norbornyl brosylate
Krische allylation (2,045 words) [view diff] exact match in snippet view article find links to article
Makoto (September 1982). "Optically active allylsilanes. 2. High stereoselectivity in asymmetric reaction with aldehydes producing homoallylic alcohols"
Crotonase family (998 words) [view diff] exact match in snippet view article find links to article
Y, Rudolph MJ, Bell AF, Hofstein HA, Parikh S, Tonge PJ (2002). "Stereoselectivity of enoyl-CoA hydratase results from preferential activation of one
2-Dehydro-3-deoxy-phosphogluconate aldolase (1,629 words) [view diff] exact match in snippet view article find links to article
a more efficient aldolase with altered substrate specificity and stereoselectivity thereby improving its utility in asymmetric synthesis. Rather than
Protein engineering (7,493 words) [view diff] exact match in snippet view article find links to article
the identification of residues which are important in stability, stereoselectivity, and catalytic efficiency.[page needed] Examples of methods that produce
Tylactone synthase (1,599 words) [view diff] exact match in snippet view article find links to article
Stefano A.; van der Kamp, Marc W. (2019). "Unpicking the Cause of Stereoselectivity in Actinorhodin Ketoreductase Variants with Atomistic Simulations"
Oxidative coupling of phenols (1,270 words) [view diff] exact match in snippet view article find links to article
couplings between C–C coupled and C–O coupled products. Moreover, stereoselectivity is an important consideration if the resulting biphenol compound displays
Chiral inversion (3,009 words) [view diff] exact match in snippet view article find links to article
S2CID 30916093. Ariëns EJ, Wuis EW, Veringa EJ (January 1988). "Stereoselectivity of bioactive xenobiotics. A pre-Pasteur attitude in medicinal chemistry
Process chemistry (4,405 words) [view diff] exact match in snippet view article find links to article
carbon treatment to remove trace amounts of catalyst and insufficient stereoselectivity, requiring a subsequent recrystallization step before final salt formation
Totarol (4,809 words) [view diff] exact match in snippet view article find links to article
isopropyl group in the chemical synthesis was achieved with complete stereoselectivity. Acetylation to yield 15 required high temperatures due to the steric
Sagopilone (1,996 words) [view diff] exact match in snippet view article find links to article
dimethyldioxirane (DMDO) afforded the alpha-epoxide ABC10 with high stereoselectivity along with minor amounts of the biologically less active beta-epoxide
Sterimol parameter (2,055 words) [view diff] exact match in snippet view article find links to article
Benzofuran-2-ones to Alkyl 2-Phthalimidoacrylates: Modeling Structure-Stereoselectivity Relationships with Steric and Electronic Parameters". Angewandte Chemie
Jorge H. Capdevila (2,419 words) [view diff] exact match in snippet view article find links to article
Falck, J.R.; Capdevila, J.H. (1989). "Cytochrome P-450 controlled stereoselectivity of the hepatic arachidonic acid epoxygenase". Journal of Biological