Syntheses of furo[3,4-c]coumarins and related furyl coumarin derivatives via intramolecular Wittig reactions
作者:Yeong-Jiunn Jang、Siang-en Syu、Yu-Jhang Chen、Mei-Chun Yang、Wenwei Lin
DOI:10.1039/c1ob06571h
日期:——
A new and general strategy for highly functional furo[3,4-c]coumarins and related furyl coumarin derivatives has been developed, which is based on an extraordinarily facile intramolecular Wittig reaction, starting from α,β-unsaturated ketones, tributylphosphine, and acyl chlorides. The phosphorus ylides were proposed to be the key intermediates for constructing the crucial furan ring, leading to a
已经开发了一种新的,通用的功能性呋喃[3,4- c ]香豆素和相关呋喃香豆香豆素衍生物的新策略,该策略基于从α,β-不饱和酮开始的极其容易的分子内Wittig反应,三丁基膦和酰氯。有人提出磷化磷是构成关键呋喃环的关键中间体,一步就可以制得各种各样的呋喃香豆素。