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searching for Aromatization 89 found (144 total)

Anthony Barrett (2,192 words) [view diff] exact match in snippet view article find links to article

"Biomimetic Synthesis of Resorcylate Natural Products Utilizing Late Stage Aromatization: Concise Total Syntheses of the Marine Antifungal Agents 15G256ι and

2,3-Dichloro-5,6-dicyano-1,4-benzoquinone (507 words) [view diff] no match in snippet view article find links to article

2,3-Dichloro-5,6-dicyano-1,4-benzoquinone (or DDQ) is the chemical reagent with formula C6Cl2(CN)2O2. This oxidant is useful for the dehydrogenation of

Carrot seed oil (234 words) [view diff] exact match in snippet view article find links to article

extract the distilled (ethereal) oil is used in perfumery and food aromatization. The main constituent of this oil is carotol.[citation needed] Pressed

Aromatase inhibitor (2,055 words) [view diff] exact match in snippet view article find links to article

risk for breast cancer. Aromatase is the enzyme that catalyzes a key aromatization step in the synthesis of estrogen. It converts the enone ring of androgen

Petrochemical (2,073 words) [view diff] exact match in snippet view article find links to article

obtained from petroleum refineries. Alternatively, BTX can be produced by aromatization of alkanes. Benzene is a raw material for dyes and synthetic detergents

4-Androstene-3,6,17-trione (755 words) [view diff] exact match in snippet view article find links to article

or prohormone users to counteract estrogen level increases caused by aromatization during their steroid cycle. This helps minimize side effects such as

Thiazole tautomerase (142 words) [view diff] exact match in snippet view article find links to article

phosphate The enzyme catalyses the irreversible aromatization of the thiazole moiety of 2-[(2R,5Z)-2-carboxy-4-methylthiazol-5(2H)-ylidene]ethyl

Sommelet–Hauser rearrangement (250 words) [view diff] exact match in snippet view article find links to article

rearrangement because it is more reactive than the first one and subsequent aromatization to form the final product (3). The Stevens rearrangement is a competing

Diarylethene (1,161 words) [view diff] exact match in snippet view article find links to article

unsubstituted diarylethenes are prone to oxidation, leading to a re-aromatization of the π-system. The most common example is (E)-stilbene, which upon

Steroidal aromatase inhibitor (2,713 words) [view diff] exact match in snippet view article find links to article

glands, testes and ovaries. Andre Meyer later hypothesized that the aromatization of androstenedione was enzymatic and this was proven in the 1980s with

Tetraanthraporphyrin (479 words) [view diff] exact match in snippet view article find links to article

syntheses of TAPs is a need for harsh conditions of condensation or aromatization steps, which are poorly compatible with the emerging huge and fragile

Abietane (1,567 words) [view diff] exact match in snippet view article find links to article

to defunctionalization, abietanes likely undergo dehydrogenation and aromatization reactions to form more energetically stable systems of conjugated pi

Phenols (1,019 words) [view diff] exact match in snippet view article find links to article

hexadienedioic acid with oxygen, copper chloride in pyridine Oxidative de-aromatization to quinones also known as the Teuber reaction. and oxone. In reaction

Zincke–Suhl reaction (682 words) [view diff] exact match in snippet view article find links to article

Such staunch drops have been experimentally shown to lead to efficient aromatization with high yields. Other products including dioxocins and polymers can

Preoptic area (995 words) [view diff] exact match in snippet view article find links to article

mounting behavior in the male rat with intracranial application of the aromatization inhibitor, androst-1,4,6,-triene-3,17-dione". Endocrinology. 97 (6):

Aspergillusene (173 words) [view diff] exact match in snippet view article find links to article

"Total Synthesis of Benzofuran-Based Aspergillusene B via Halogenative Aromatization of Enones". Organic Letters. 22 (11): 4196–4200. doi:10.1021/acs.orglett

Viridin (728 words) [view diff] exact match in snippet view article find links to article

formation of the furan ring, the loss of C-13 and C-14 methyl groups, aromatization of the C-ring, removal of the side chain, and oxidation of the A-ring

Pseudopterosin A (469 words) [view diff] exact match in snippet view article find links to article

bicyclic system. The biosynthesis of the pseudopterosins continues with an aromatization to erogorgiaene (3), two oxidations to a dihyroxyerogorgiaene (4, then

Dihydroxyphenylglycine (506 words) [view diff] exact match in snippet view article find links to article

DHPG synthesis involving enzymes DpgB and DpgD. Aromatization of the C8 intermediate through dehydration and then alkene isomerization.

Mitomycins (953 words) [view diff] exact match in snippet view article find links to article

key intermediate, 3-amino-5-hydroxybenzoic acid (AHBA), is made via aromatization by AHBA synthase. Synthesis of the key intermediate, 3-amino-5-hydroxy-benzoic

Chloranil (302 words) [view diff] exact match in snippet view article find links to article

acceptor. It is more electrophilic than quinone itself. It is used for the aromatization reactions, such as the conversion of cyclohexadienes to the benzene

Catamenial epilepsy (2,273 words) [view diff] exact match in snippet view article find links to article

source is adipose tissue (subcutaneous fat), where it is formed by aromatization of androstenedione. Estrone is the major estrogen after menopause, and

Cyanidin (817 words) [view diff] exact match in snippet view article find links to article

keto groups ring through PKS III. Aureusidin synthase catalyses the aromatization and cyclization of the newly added carbonyl groups and facilitates the

Isoindoline (275 words) [view diff] exact match in snippet view article find links to article

One-Pot Sequential Cu(I)-Catalyzed Asymmetric 1,3-Dipolar Cycloaddition/Aromatization DOI: 10.1021/ol302987h Asymmetric organocatalytic formal double-arylation

Estradiol (7,243 words) [view diff] exact match in snippet view article find links to article

estradiol in women is produced by the granulosa cells of the ovaries by the aromatization of androstenedione (produced in the theca folliculi cells) to estrone

Slinzega (163 words) [view diff] exact match in snippet view article find links to article

smaller sizes (300–800 g) and has a much stronger flavor due to the aromatization with salt, cinnamon, cloves, garlic, bay leaf, and pepper. The charcuterie

Tibor Škerlak (480 words) [view diff] exact match in snippet view article find links to article

Technical Faculty in Ljubljana. He worked on the potential of crude oil aromatization with Boris Krajnc at that time, among other problems. Some years later

Kröhnke pyridine synthesis (1,765 words) [view diff] exact match in snippet view article find links to article

pyridinium cation is then eliminated to form hydroxy-dienamine 12. Aromatization of 12 via subsequent loss of water generates the desired pyridine heterocycle

Kathie L. Olsen (1,224 words) [view diff] exact match in snippet view article find links to article

and I. L. Ward (Eds.) Plenum Press, 1992, pp. 1–40. Olsen, K.L., "Aromatization: Is It Critical for Differentiation of Sexually Dimorphic Behaviors

Manganese dioxide (1,863 words) [view diff] exact match in snippet view article find links to article

being applicable to many kinds of reactions including amine oxidation, aromatization, oxidative coupling, and thiol oxidation. In Geobacteraceae sp., MnO2

Polyketide (2,213 words) [view diff] exact match in snippet view article find links to article

glucosyltransferase or oxidation via a monooxygenase. Similarly, cyclization and aromatization can be introduced via a cyclase, sometimes proceeded by the enol tautomers

11β-Methyl-19-nortestosterone (680 words) [view diff] exact match in snippet view article find links to article

contraceptives and to treat male hypogonadism. 11β-MNT does not undergo aromatization into the corresponding estrogenic metabolite 11β-methylestradiol, and

Methylcyclopentane (781 words) [view diff] exact match in snippet view article find links to article

The conversion of methylcyclopentane to benzene is a classic aromatization reaction, specifically a dehydroisomerization. This platinum (Pt)-catalyzed

Benorterone (1,563 words) [view diff] exact match in snippet view article find links to article

and has been reported to possess estrogenic activity, although the aromatization of benorterone has not been assessed. A couple of studies found that

Griseofulvin (961 words) [view diff] exact match in snippet view article find links to article

starter unit. The 14-carbon poly-β-keto chain undergoes cyclization/aromatization, using cyclase/aromatase, respectively, through a Claisen and aldol

Steroid hormone (1,674 words) [view diff] exact match in snippet view article find links to article

an enzyme-mediated alteration such as reduction, hydroxylation, or aromatization. Then the steroid binds to a specific steroid hormone receptor, also

Dimethandrolone (987 words) [view diff] exact match in snippet view article find links to article

estrogenic. This is in contrast to nandrolone, which, although its rate of aromatization into the estrogen estradiol is reduced relative to that of testosterone

Anabolic steroid (21,565 words) [view diff] exact match in snippet view article find links to article

gynecomastia (woman-like breasts). AAS that have a high potential for aromatization like testosterone and particularly methyltestosterone show a high risk

Pyrimidine (2,105 words) [view diff] exact match in snippet view article find links to article

or alkyllithium reagents yield 4-alkyl- or 4-aryl pyrimidine after aromatization.: 14–15 Free radical attack has been observed for pyrimidine and photochemical

1,8-Bis(dimethylamino)naphthalene (768 words) [view diff] exact match in snippet view article

is more than 11 orders of magnitude higher than Proton Sponge. The aromatization of an additional ring in 4,12-Dihydrogen-4,8,12-triazatriangulene is

Stetter reaction (2,357 words) [view diff] exact match in snippet view article find links to article

acetylenedicarboxylate (DMAD), whereby the thiazolium ylide is hydrolyzed by the aromatization of the furan product. As the thiazolium is destroyed under these conditions

Marinone (448 words) [view diff] exact match in snippet view article find links to article

via the condensation of five malonyl-coenzyme A units followed by the aromatization of the resulting pentaketide using a type III polyketide synthase. Next

Ethamoxytriphetol (992 words) [view diff] exact match in snippet view article find links to article

7, 112. ISBN 978-1-84816-959-3. Clemens LG (15 November 2012). "The Aromatization Hypothesis 1970-1990". In Balthazart J, Ball G (eds.). Brain Aromatase

2-Bromoethyl ether (149 words) [view diff] exact match in snippet view article find links to article

the synthesis of dibenzodithia-and benzothiaazacrown ethers via the aromatization of 2-alkylthio(arylthio)cyclohexanes during bromination". Chemistry

Hexabenzocoronene (503 words) [view diff] exact match in snippet view article find links to article

pairs of benzene rings undergo oxidative electrocyclic reactions and aromatization by oxidation by iron(III) chloride in nitromethane. Goddard, Richard;

Cycloserine (2,070 words) [view diff] exact match in snippet view article find links to article

doi:10.5582/ddt.2011.v5.5.253. PMID 22466372. Silverman R (1998). "An Aromatization Mechanism of Inactivation of γ-Aminobutyric Acid Aminotransferase for

1,4,6-Androstatriene-3,17-dione (347 words) [view diff] exact match in snippet view article find links to article

DL, Roselli CE, Spies HG, Resko JA (December 1984). "Inhibition of aromatization stimulates luteinizing hormone and testosterone secretion in adult male

Aromatic compound (2,098 words) [view diff] exact match in snippet view article find links to article

derivatives, often with several isomers. Electron flow leading to re-aromatization is key in ensuring the stability of such products. For example, three

Carl Shipp Marvel (3,340 words) [view diff] exact match in snippet view article find links to article

chain-growth polymerization of a cyclohexadiene monomer, and its subsequent aromatization. His work is therefore considered "an important milestone in the history

Activin and inhibin (2,557 words) [view diff] exact match in snippet view article find links to article

the ovarian follicle, activin increases FSH binding and FSH-induced aromatization. It participates in androgen synthesis enhancing LH action in the ovary

Debromomarinone (429 words) [view diff] exact match in snippet view article find links to article

via the condensation of five malonyl-coenzyme A units followed by the aromatization of the resulting pentaketide using a type III polyketide synthase. Next

Podophyllotoxin (2,417 words) [view diff] exact match in snippet view article find links to article

diversified. For example, ring A is not essential to antimitotic activity. Aromatization of ring C leads to loss of activity, possibly from ring E no longer

Metandienone (2,274 words) [view diff] exact match in snippet view article find links to article

the estrogen methylestradiol (17α-methylestradiol). While the rate of aromatization is reduced relative to that for testosterone or methyltestosterone,

Pentacene (2,720 words) [view diff] exact match in snippet view article find links to article

(for example Grignard or organolithium reagents) followed by reductive aromatization. Another method is based on homologization of diynes by transition metals

Trans-1,2-dihydrobenzene-1,2-diol dehydrogenase (184 words) [view diff] exact match in snippet view article find links to article

2POQ. AYENGAR PK, HAYAISHI O, NAKAJIMA M, TOMIDA I (1959). "Enzymic aromatization of 3,5-cyclohexadiene-1,2-diol". Biochim. Biophys. Acta. 33 (1): 111–9

Naphthalene (3,383 words) [view diff] exact match in snippet view article find links to article

conducted in refluxing naphthalene to give the 1:1 Diels–Alder adduct. The aromatization of hydroporphyrins has been achieved using a solution of DDQ in naphthalene

Luteinizing hormone (3,380 words) [view diff] exact match in snippet view article find links to article

"Inhibition of luteinizing hormone secretion by testosterone in men requires aromatization for its pituitary but not its hypothalamic effects: evidence from the

Dimethandrolone undecanoate (2,105 words) [view diff] exact match in snippet view article find links to article

decreased in both groups, most probably because of insufficient MENT aromatization [104], limiting its potential for hormonal substitution in hypogonadal

Apigenin (1,048 words) [view diff] exact match in snippet view article find links to article

consecutive condensations of three equivalents of malonyl CoA followed by aromatization to convert p-coumaroyl-CoA to chalcone. Chalcone isomerase (CHI) then

Rubellin B (469 words) [view diff] exact match in snippet view article find links to article

chrysophanol intermediate. The chrysophanol unit then goes through a de-aromatization with the enzyme RccC, a tetrahydronaphthalenes reductase, TH4N. These

Ethylestrenol (1,219 words) [view diff] exact match in snippet view article find links to article

and dihydrotestosterone (DHT). It has low estrogenic activity (via aromatization into ethylestradiol following transformation into norethandrolone),

Nosiheptide (885 words) [view diff] exact match in snippet view article find links to article

Nosiheptide intermediate diels-alder type cyclization and aromatization

Cytochrome P450 reductase (2,455 words) [view diff] exact match in snippet view article find links to article

who became virilized during pregnancy, suggesting deficient placental aromatization of fetal androgens due to a lesion in microsomal aromatase resulting

Extended female sexuality (4,166 words) [view diff] exact match in snippet view article find links to article

PMID 3568606. Rissman, E. F. (August 1991). "Evidence that Neural Aromatization of Androgen Regulates the Expression of Sexual Behaviour in Female Musk

Ethisterone (2,863 words) [view diff] exact match in snippet view article find links to article

humans. This indicates that it is not metabolized into progesterone. No aromatization of ethisterone has been detected in vivo, and no estrogenic metabolites

Yusif Mammadaliyev (736 words) [view diff] exact match in snippet view article find links to article

industrial scale. The major works were executed in the sphere of catalytic aromatization of benzine fraction of Baku oil, obtainment of washing agents, flint-organic

Normethandrone (1,588 words) [view diff] exact match in snippet view article find links to article

that of normethandrone. Normethandrone has estrogenic activity via aromatization into methylestradiol. Normethandrone is metabolized by aromatase into

Castration (9,453 words) [view diff] exact match in snippet view article find links to article

production of sex hormones in puberty—more specifically, estrogen via aromatization of testosterone—stops long bone growth in a process called osseous maturation

Pyrrolizidine alkaloid (3,571 words) [view diff] exact match in snippet view article find links to article

of certain mammal species enzymes called monooxygenase can prevent aromatization of the double 5-ring and in turn prevent the formation of the pyrrole-protein

Estrone (3,971 words) [view diff] exact match in snippet view article find links to article

estrone is subsequently secreted from these tissues. In addition to aromatization of androstenedione, estrone is also formed reversibly from estradiol

Noretynodrel (2,853 words) [view diff] exact match in snippet view article find links to article

metabolites, aside from norethisterone, are aromatized either. As such, aromatization likely does not play a role in the estrogenic activity of tibolone or

Moti Herskowitz (833 words) [view diff] exact match in snippet view article find links to article

stability of Pt/SAPO-11 catalyst in hydrodeoxygenation–isomerization–aromatization of vegetable oil". Journal of Catalysis. 332: 164–176. doi:10.1016/j

Androstanolone (3,569 words) [view diff] exact match in snippet view article find links to article

not increase prostate gland size in men. Conversely, due to lack of aromatization into estrogens, androstanolone therapy for androgen replacement may

Cyclothiazomycin (1,128 words) [view diff] exact match in snippet view article find links to article

subsequently undergo chemical modifications, including macrocyclization, aromatization, cyclodehydration, and dehydrogenation. Cyclothiazomycins exist as three

Dihydrotestosterone undecanoate (529 words) [view diff] exact match in snippet view article find links to article

Gooren LJ (December 1985). "Human male sexual functions do not require aromatization of testosterone: a study using tamoxifen, testolactone, and dihydrotestosterone"

Nikolay Zelinsky (3,151 words) [view diff] exact match in snippet view article find links to article

produce high octane fuel; new catalysts were found for the processes of aromatization of oil and the production of defense products. Under the leadership

Totarol (5,261 words) [view diff] exact match in snippet view article find links to article

halogenation-dehydrogenation sequence and subsequent bromination to yield 18 and ring aromatization with elimination via a lithium complex. Chemoenzymatic synthesis of

T. S. R. Prasada Rao (730 words) [view diff] exact match in snippet view article find links to article

on acidity, activity and coke deactivation of ZSM-5 during n-heptane aromatization". Applied Catalysis A: General. 205 (1–2): 1–10. doi:10.1016/s0926-860x(00)00543-3

Β-Carbon elimination (1,798 words) [view diff] exact match in snippet view article find links to article

Halcrow, Malcolm A.; Urbanos, Francisco; Chaudret, Bruno (March 1993). "Aromatization of the B-ring of 5,7-dienyl steroids by the electrophilic ruthenium

Masculinizing hormone therapy (7,681 words) [view diff] exact match in snippet view article find links to article

locally metabolized and potentiated by 5α-reductase), capacity for aromatization (i.e., conversion into an estrogen), and potential for liver damage

Susannah Scott (884 words) [view diff] exact match in snippet view article find links to article

"Polyethylene upcycling to long-chain alkylaromatics by tandem hydrogenolysis/aromatization". Science. 370 (6515): 437–441. Bibcode:2020Sci...370..437Z. doi:10

Dinosterol (3,462 words) [view diff] exact match in snippet view article find links to article

physicochemical reactions further alter the steroids by causing complete aromatization, isomerization and cracking of the steroids. These more stable compounds

Medical uses of bicalutamide (13,465 words) [view diff] exact match in snippet view article find links to article

In the cortex and pituitary, androgens do not undergo significant aromatization, and it appears that the effects of androgens on these tissues are mediated

Petrobactin (877 words) [view diff] exact match in snippet view article find links to article

enzyme-catalyzed dienol benzene rearrangement and reduction, leading to aromatization of the ring. "KNApSAcK Metabolite Information - C00043809". www.knapsackfamily

N. D. Zelinsky Institute of Organic Chemistry (739 words) [view diff] exact match in snippet view article find links to article

Discoveries and inventions Date Inventor Significance Source 1 Reaction of aromatization (C6-dehydrocyclization) of paraffin hydrocarbons on platinized carbon

N-Heterocyclic olefins (2,234 words) [view diff] exact match in snippet view article find links to article

heterocycle – were more nucleophilic than their NHC counterparts due to their aromatization, but saturated NHOs were less nucleophilic than their NHC counterparts

Contorted aromatics (6,185 words) [view diff] exact match in snippet view article find links to article

of having a stable structure due to conjugation, delocalization and aromatization. A gas phase coronene can be expected to switch to non-planar geometry

Pharmacology of bicalutamide (20,539 words) [view diff] exact match in snippet view article find links to article

gonadotropins. In addition to systemic or circulating estradiol, local aromatization of testosterone into estradiol in the hypothalamus and pituitary gland

Hormonal breast enhancement (6,008 words) [view diff] exact match in snippet view article find links to article

IGF-1 levels with the low levels of estrogen derived from peripheral aromatization of adrenal androgens. Certain long-acting growth hormone secretagogues