Etherification of alkoxydialkylsilanes with carbonyl compounds
作者:Xinglong Jiang、Joginder S Bajwa、Joel Slade、Kapa Prasad、Oljan Repič、Thomas J Blacklock
DOI:10.1016/s0040-4039(02)02253-0
日期:2002.12
A novel method for preparing ethers from alkoxydialkylsilanes and carbonyl compounds through reductive etheritication is described. The salient feature in this method is the utilization of internal hydrogen as the hydride source for reducing the oxonium intermediate generated by using the Cl(R)(2)SiBr[BiBr3/Cl(R)(2)SiH] catalytic system. (C) 2002 Published by Elsevier Science Ltd.
Le (chlorodiisopropyl)silyl fluorenyllithium: Un equivalent synthetique du diisopropyl(fluorenylidène)silene
作者:C. Couret、J. Escudié、G. Delpon-Lacaze、J. Satgé
DOI:10.1016/0022-328x(92)80202-9
日期:1992.11
The metalation of chlorodiisopropylfluorenylsilane 1 with n-butyllithium leads to the alpha-silyllithio compound 3. Compound 3 has a surprising stability and does not afford the diisopropyl(fluorenylidene)silene but behaves as its synthetic equivalent; i.e. it is a useful reagent for "Wittig-Peterson" reactions with various carbonyl compounds leading readily to diisopropylsilanone and fluorenylidene derivatives.