Vicinal tricarbonyls in synthesis. New routes to indolizidines.
作者:Harry H. Wasserman、Chi B. Vu、Jan D. Cook
DOI:10.1016/s0040-4020(01)88877-3
日期:——
The vinyl vicinal tricarbonyl system 1 (VTC) has been used in two different approaches to prepare functionalized indolizidines. In one approach, 1 is used as a trielectrophile in reactions with primary amines possessing auxiliary donor sites. In a second approach, 1 is converted to a substituted 3-hydroxypyrrole-2-carboxylate. This pyrrole derivative then undergoes an intramolecular alkylation to give
乙烯基邻位三羰基系统1(VTC)已用于两种不同的方法中,以制备功能化的吲哚并咪唑。在一种方法中,在与具有辅助供体位点的伯胺反应中,将1用作三亲电子试剂。在第二种方法中,将1转化为取代的3-羟基吡咯-2-羧酸酯。然后使该吡咯衍生物进行分子内烷基化,得到吲哚并立定环系统。