Synthesis of β-silyl ketones via reaction of trimethylsilyllthium with unsaturated hydrazones. Application to the synthesis of brevicomin
作者:Paul F. Hudrlik、Anne M. Hudrlik、Tilahun Yimenu、Morris A. Waugh、G. Nagendrappa
DOI:10.1016/s0040-4020(01)86637-0
日期:1988.1
undergoes conjugate addition to dimethylhydrazones of α,β-unsaturated ketones. The resulting metalloenamine intermediates can be alkylated, and the resulting hydrazone products cleaved to give α-substituted-β-silyl ketones. These reactions, together with a silicon-directed Baeyer-Villiger reaction, have been applied to the synthesis of brevicomin.
三甲基甲硅烷基锂与α,β-不饱和酮的二甲基hydr共轭加成。可以将所得的金属烯胺中间体烷基化,并将所得的products产物裂解,得到α-取代的-β-甲硅烷基酮。这些反应,以及硅定向的Baeyer-Villiger反应,已被用于合成brevicomin。