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searching for Trimethylsilyl group 17 found (27 total)

Tetramethylsilane (415 words) [view diff] no match in snippet view article find links to article

Tetramethylsilane (abbreviated as TMS) is the organosilicon compound with the formula Si(CH3)4. It is the simplest tetraorganosilane. Like all silanes

Trimethylsilyl cyanide (387 words) [view diff] exact match in snippet view article find links to article

volatile liquid consists of a cyanide group, that is CN, attached to a trimethylsilyl group. The molecule is used in organic synthesis as the equivalent of hydrogen

DSS (NMR standard) (263 words) [view diff] exact match in snippet view article

aqueous solutions. The chemical shift, specifically the signal for the trimethylsilyl group, is relatively insensitive to pH. The proton spectrum of DSS also

Trimethylsilylpropanoic acid (95 words) [view diff] exact match in snippet view article find links to article

Trimethylsilylpropanoic acid (TMSP or TSP) is a chemical compound containing a trimethylsilyl group. It is used as internal reference in nuclear magnetic resonance for

A value (1,155 words) [view diff] exact match in snippet view article find links to article

the tert-butyl group (A-value=4.9) has a larger A-value than the trimethylsilyl group (A-value=2.5), yet the tert-butyl group actually occupies less space

Bicyclopropenyl (384 words) [view diff] exact match in snippet view article find links to article

reacted with TBAF. In this latter reaction fluoride couples to the trimethylsilyl group, in the process forming the double bond and forcing the chlorine

Phenylacetylene (366 words) [view diff] exact match in snippet view article find links to article

iodobenzene with trimethylsilylacetylene, followed by removal of the trimethylsilyl group using TBAF. Phenylacetylene is a prototypical terminal acetylene

Trimethylsilyl iodide (399 words) [view diff] exact match in snippet view article find links to article

→ 6 TMSI + Al2O3 Trimethylsilyl iodide is used to introduce the trimethylsilyl group onto alcohols (ROH): R-OH + TMSI → R-OTMS + HI This type of reaction

Butyl group (874 words) [view diff] exact match in snippet view article find links to article

kinetic stabilization, as are other bulky groups such as the related trimethylsilyl group. The effect of the tert-butyl group on the progress of a chemical

Silyl enol ether (1,369 words) [view diff] exact match in snippet view article find links to article

compound sulfenylated at an alpha carbon. In this reaction, the trimethylsilyl group of the silyl enol ether is removed by the chloride ion released from

Kuwajima Taxol total synthesis (1,349 words) [view diff] exact match in snippet view article find links to article

tetrakis(triphenylphosphine)palladium(0) catalysed reaction to the silane 4.8. The trimethylsilyl group eliminated on addition of NCS to organochloride 4.9. Prior to ring-closing

Aryne (2,936 words) [view diff] exact match in snippet view article find links to article

based on trimethylsilylaryl triflates. Fluoride displacement of the trimethylsilyl group induces elimination of triflate and release of benzyne: A hexadehydro

Silabenzene (1,690 words) [view diff] no match in snippet view article find links to article

substituents such as a tert-butyl (1,1-dimethylethyl) or a TMS (trimethylsilyl) group, but such silabenzenes readily react with themselves to give the

NanoPutian (1,442 words) [view diff] exact match in snippet view article find links to article

5-(4’-thiolacetyl-1’-butynyl)-1-(trimethylsilylethynyl)-benzene, had its trimethylsilyl group removed using tetra-n-butylammonium fluoride (TBAF) and AcOH/Ac2O

Danishefsky Taxol total synthesis (1,409 words) [view diff] exact match in snippet view article find links to article

fluoride The ketone of diene 28 (Scheme 3) was protected by the trimethylsilyl group, and was removed when the vinyl lithium 30 group of A ring was added

Protecting group (6,755 words) [view diff] exact match in snippet view article find links to article

also use glycols, but with the hydroxyl hydrogens replaced with a trimethylsilyl group. Acetals can be removed in acidic aqueous conditions. For those ends

Living polymerization (4,362 words) [view diff] exact match in snippet view article find links to article

in a Michael reaction. With each addition of a monomer group the trimethylsilyl group is transferred to the end of the chain. The active chain-end is not