Regiospecific synthesis of polysubstituted furans from silylated furans: Expedient syntheses of rosefuran
作者:Ming Keung Wong、Chun Yip Leung、Henry N.C. Wong
DOI:10.1016/s0040-4020(97)00083-5
日期:1997.3
Our approach uses as the key theme trimethylsilyl groups as both blocking groups as well as ipso-directing groups. The advantage of this program is aptly illustrated by two expedient syntheses of rosefuran (9c).
利用区域特异性锂化烷基化的序列,本位-iodination,环硼氧烷的形成,的Sonogashira交叉偶联,镍-催化的交叉偶联和Suzuki交叉偶联反应中,几种方法已为2,3-二取代的呋喃的合成开发,2,4-二取代的呋喃,2,3,4-三取代的呋喃和2,3,5-三取代的呋喃。我们的方法使用三甲基甲硅烷基作为保护基团和ipso导向基团作为关键主题。该程序的优势可以通过玫瑰呋喃(9c)的两种简便合成方法恰当地说明。