Synthesis of 2,3-Di- and 2,3,4-Trisubstituted Furans from 1,2-Dioxines Generated by an Enyne-RCM/Diels−Alder Reaction Sequence
作者:Young-Keun Yang、Jung-Hoon Choi、Jinsung Tae
DOI:10.1021/jo050957q
日期:2005.8.1
An efficient method for the synthesis of 2,3- and 2,3,4-substituted furans starting from acyclic enynes was developed using an enyne-RCM/Diels−Alder reaction sequence. The reaction conditions for the transformation of 1,2-dioxines having an adjacent 1,2-oxazine ring into furans and the cleavage of N−O bonds are discussed.
使用烯炔-RCM / Diels-Alder反应序列,开发了一种从无环烯炔开始合成2,3-和2,3,4,4-取代呋喃的有效方法。讨论了具有相邻的1,2-恶嗪环的1,2-二恶英转化为呋喃和N-O键断裂的反应条件。