One-Flask Tethered Ring Closing Metathesis-Electrocyclic Ring Opening for the Highly Stereoselective Synthesis of Conjugated Z/E-Dienes
作者:Bernd Schmidt、Oliver Kunz
DOI:10.1002/ejoc.201101497
日期:2012.2
A one-flask reaction sequence comprising ring closing metathesis (RCM) of butenoates derived from allylic alcohols and a base-mediated ring opening gives 2Z,4E-configured dienoic acids in high yields and stereoselectivities. Application of the method to the synthesis of the natural product fusanolide A suggests that the originally published structure was erroneously assigned and should be revised.
包括衍生自烯丙醇的丁烯酸酯的闭环复分解 (RCM) 和碱介导的开环的单瓶反应序列以高产率和立体选择性得到 2Z,4E 构型的二烯酸。该方法在天然产物 fusanolide A 的合成中的应用表明最初发表的结构被错误地分配,应该进行修改。