Examples of 'silyl ether' in a sentence
Meaning of "silyl ether"
Silyl ether: A chemical compound containing a silyl group bonded to an oxygen atom, commonly used in organic synthesis
How to use "silyl ether" in a sentence
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silyl ether
The silyl ether may be obtained as follows.
The alcohol may also be protected in silyl ether form.
The silyl ether product was obtained as an oily residue.
Fluoride ion is the preferred method for removing silyl ether protecting group.
Cleavage of the silyl ether leaves a primary alcohol group in this position.
The mixture was allowed to stir until all alcohol was converted to the silyl ether.
The silyl ether on the primary hydroxyl group was then selectively removed with aq.
The starting material was separated as t-butyldimethyl silyl ether.
The crude silyl ether was used in the next step directly without further purification.
Step 3 involves the deprotection of the silyl ether.
The silyl ether group was cleaved with dilute HCl in THF.
Several a-bromoketones were prepared by bromination of the appropriate enol silyl ether.
The silyl ether derivatives and were also inactive against the PS cell line.
Silanes may react vía a sol-gel reaction to form a silyl ether linkage.
The silyl ether can be converted to the hydroxy derivative by treatment with hydrochloric acid M.
See also
In the cycloaddition product, the silyl ether is a synthon for a carbonyl group through the enol.
The silyl ether can be converted to the Z is OH by treatment with hydrochloric acid M.
The activators may be modified conveniently with further ester, ether, amine or silyl ether groups.
Preferably, the silyl ether is purified after isolation by distillation under vacuum.
The activators can be further modified with esters, ethers, and amines or silyl ether groups.
Selective removal of the primary silyl ether protecting group HF • pyr.
The silicon group is selected from an alkoxysilyl group, a silanol group and a silyl ether group.
The silyl ether was then deprotected with a flouride source including CsF, TBAF, HF etc.
The major diastereoisomer 32 was easily separated by flash chromatography and protected as a TBS silyl ether.
The silyl ether can be converted to the Z = OH by treatment with hydrochloric acid M.
Chromatograph on silica ( hexanes ) to obtain the silyl ether.
For example, a silyl ether is removed using a Bu4NF.
The 3-ol is converted to the corresponding t-butyldimethyl silyl ether by standard procedures.
Examples of such groups are silyl ether protecting groups such as tert . - butyl-dimethylsilanyl.
Purification by passing through a short colum gave 340 mg of silyl ether protected material.
Deprotection of the silyl ether under standard conditions yielded the desired protected tether, Boc-T28.
A living butadiene precursor polymer was synthesized using a silyl ether initiator for the polymerization of 1,3-butadiene.
In both methods discussed above the 13-OH is protected as a silyl ether.
The a-halo silyl ether ( II ) is obtained by extraction in the usual manner.
Step I involves the silylation of an alcohol of formula 10 to obtain a silyl ether of formula 11.
In one embodiment, the fluoride labile silyl ether is a tert-butyldimethyl silyl ( TBDMS ) ether.
Independently, the amino acid ester K1 is protected to afford silyl ether L1.
In an alternate embodiment, the group -OR5 is a silyl ether moiety, for example triethylsilyloxy.
Preferably, the silyl ether is purified after isolation by distillation under vacuum, giving compound S1b.
Suitably, P is a tetrahydropyranyl ( THP ) or silyl ether protecting group.
The silyl ether was subsequently cleaved from the C2 hydroxyl using tetrabutylammonium fluoride ( TBAF ) in 99 % yield.
The alcohols are protected as silyl ether ( usually TBDMS or TBDPS ).
For example, it might be protected as a benzyl, methoxymethyl ( MOM ) or silyl ether.
Dissolve the appropriate silyl ether in THF and cool to 0°C.
Reaction at 5°C for 10 minutes gave a solution of the expected silyl ether initiator.
Step ( x ), deprotection of the silyl ether using, for example, a TBAF solution.
During the synthesis, R is a protected hydroxy, preferably a silyl ether preferably tert - butyldiphenylsilyloxy ( TBDPS ).
Protection of the hydroxyl as the triethyl silyl ether ( triethylsilylchloride, pyridine, 60°C ) is quantitative.
The educt has reacted completely to silyl ether after 1.5 hours.
Both the fluorosulfate and the silyl ether monomers were readily obtained from BPA ( FIG . 2, Panel ( a ) ).
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