1.The conditions of dual reactivity of the esters of α-metalated carboxylic acids with the halides of some organosilicon compounds were examined.2.The rearrangement of O-silyl-O-alkylketeneacetals into esters of silylaceticacid is reported.
作者:Scott E. Denmark、Robert A. Stavenger、Stephen B. D. Winter、Ken-Tsung Wong、Paul A. Barsanti
DOI:10.1021/jo981740h
日期:1998.12.1
A variety of chlorosilyl enolates has been prepared starting from esters, thiol esters, acylsilanes, and ketones. Two general methods are involved, direct enolsilylation with trichlorosilyl triflate and diisopropylethylamine, and a number of methods based on electrophilic substitution of either C- or O-silyl or stannyl carbonyl compounds. The most useful method is a Hg(OAc)(2)-catalyzed trans-silylation from trimethylsilyl to trichlorosilyl enol ethers, providing a wide range of ketone enolates in good to high yield.
Burlachenko, G. S.; Khasapov, B. N.; Petrovskaya, L. I., Zhurnal Obshchei Khimii, 1966, vol. 36, p. 532 - 532
作者:Burlachenko, G. S.、Khasapov, B. N.、Petrovskaya, L. I.、Baukov, Yu. I.、Lutsenko, I. F.