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.