摘要:
Treatment of benzylic or allylic dithioacetals with Me-2((PrO)-Pr-i)SiCH2MgCl in the presence of NiCl2(PPh3)(2) catalyst yielded the corresponding i-propoxy(vinyl)silanes which are reduced with LIAlH4, to afford vinylic silyl hydrides. These hydrides serve as the precursors for the syntheses of silylene-tethered sigma,pi-conjugated copolymers. (C) 1998 Elsevier Science Ltd. All rights reserved.