A New Multicomponent Domino Transformation of 1,3-Dicarbonyl Compounds: One-Pot Regio-, Chemo- and Stereoselective Access to Valuable α,γ-Difunctionalized α-Ketoesters and Amides
作者:Jean Rodriguez、Hadjira Habib-Zahmani、Salih Hacini、Emmanuelle Charonnet
DOI:10.1055/s-2002-34874
日期:——
A new multi-component transformation between 1,3-dicarbonyls 1, aldehydes 2, and allylic, propargylic or benzylic halides 3 is described. It provides a regio-, chemo- and stereoselective one-pot access to α,γ-difunctionalized α-ketoesters and amides 4, bearing a quaternary center valuable for further synthetic transformations via ring-closing metathesis to give azaspiro systems found in bioactive natural
描述了 1,3-二羰基 1、醛 2 和烯丙基、炔丙基或苄基卤化物 3 之间的新多组分转化。它提供了区域选择性、化学选择性和立体选择性的一锅法获取 α,γ-双官能化 α-酮酯和酰胺 4,带有一个四元中心,对于通过闭环复分解进行进一步的合成转化很有价值,以提供在生物活性天然产物中发现的 azaspiro 系统.