Examples of 'triethylsilyl' in a sentence
Meaning of "triethylsilyl"
Triethylsilyl is a noun that refers to a chemical compound often used in organic synthesis reactions to protect or modify functional groups on molecules
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- a chemical functional group consisting of three ethyl groups attached to a silicon atom with structural formula (CH₃CH₂)₃Si-
How to use "triethylsilyl" in a sentence
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triethylsilyl
Preferred among these are trimethylsilyl and triethylsilyl.
Examples of alkylsilyl halide are trimethylsilyl chloride, triethylsilyl bromide, tertbutyldimethylsilyl chloride, thexyldimethylsilyl chloride.
Preferred hydroxyl protecting groups are trimethylsilyl and triethylsilyl.
Particularly preferred are trimethylsilyl groups, triethylsilyl groups, triphenylsilyl groups, and dimethylphenylsilyl groups.
A particularly advantageous protecting group for formula IV compounds is triethylsilyl.
Cleavage of the triethylsilyl and dimethoxybenzylidene protective groups from the product of step ( d ).
Advantageously, the protecting group is a triethylsilyl group.
Protection, Triethylsilyl chloride and pyridine.
Preference is given to trialkylsilyl radicals, such as trimethylsilyl or triethylsilyl.
Amongst these groups, trimethylsilyl, triethylsilyl and t-butyldimethylsilyl groups are preferred.
Preferred silyl groups are the trialkylsilyl groups, like triethylsilyl.
Removal of the triethylsilyl and dimethoxybenzylidene protective groups from the compound from step ( h ),.
Still more preferably, the silylating agent is triethylsilyl chloride.
For example, the hydroxy-protecting reagent triethylsilyl triflate affords the triethylsilyl hydroxy-protecting group.
Exemplary silicon containing hydrocarbyl radicals are trimethylsilyl, triethylsilyl and triphenylsilyl.
See also
A triethylsilyl group as A2 may be removed using, for example, tetrabutylammonium fluoride.
As examples of groups protecting the hydroxyl function, triethylsilyl and benzyl may be mentioned.
The solid triethylsilyl ether was dried at 50°C under vacuum to give a colorless solid.
The most useful trialkylsilyl protecting groups are trimethylsilyl, t-butyldimethylsilyl, triethylsilyl and triisopropylsilyl.
Triethylsilyl chloride ( TES-C1 ) is then added dropwise over a period of approximately five minutes.
Examples of the trialkylsilyl group include trimethylsilyl group, triethylsilyl group and triphenylsilyl group.
The 2 ' - O-acetyl and triethylsilyl protecting groups are removed as discussed in Scheme 1.
Examples of the tri ( lower alkyl ) silyl halide include trimethylsilyl chloride and triethylsilyl chloride, for instance.
The reaction mixture was cooled to 0°C and then triethylsilyl trifluoromethanesulfonate ( 3.6mmol ) added dropwise.
The term " silyl " refers to triloweralkylsilyl such as trimethylsilyl, triethylsilyl.
Heating and stirring were continued with further addition of triethylsilyl trifluoromethanesulfonate ( 0.8 mL ) overnight.
Preferably, the hydroxy protecting group is trialkylsilyl ether type, for example, triethylsilyl.
More particularly, the present invention utilizes triethylsilyl ( TES ) protection at the C-7 site.
A process according to any one of claims 1 to 5, wherein the silylating agent is triethylsilyl chloride.
The term " silyl group " is used herein to mean a trimethylsilyl, triethylsilyl or tributylsilyl group.
Compound 1 in Scheme I is protected at the 2 ' hydroxy group at the sidechain with a triethylsilyl ether.
Preferred silyl groups are the trialkylsilyl groups, like, trimethylsilyl, triethylsilyl and tertiary butyl-dimethylsilyl.
The compound according to claim 9, wherein Y3 is a triethylsilyl group.
Specific examples of the silicon-containing groups ( f2 ) include trimethylsilyl, triethylsilyl and triphenylsilyl groups.
Figure 36 shows a PXRD pattern for crystalline triethylsilyl Cabazitaxel.
Preferably, the compound R7R8R9SiX is trimethylsilyl chloride or triethylsilyl chloride.
Suitable " tri ( lower ) alkylsilyl " may be trimethylsilyl, triethylsilyl and the like.
The solution is then treated with 1.6 equivalents of triethylamine and 1.5 equivalents of triethylsilyl triflate.
More preferably, B is a trimethylsilyl ( TMS ) or a triethylsilyl ( TES ) group.
