Le (chlorodiisopropyl)silyl fluorenyllithium: un equivalent synthetique du diisopropyl(fluorenylidene)silene

Article abstract of DOI:10.1016/0022-328X(92)80202-9

The metalation of chlorodiisopropylfluorenylsilane 1 with n-butyllithium leads to the α-silylthio 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.