Phosphane-Mediated Domino Synthesis of Tetrasubstituted Furans from Simple Terminal Activated Olefins
作者:Jianfang Wang、Rong Zhou、Zheng-Rong He、Zhengjie He
DOI:10.1002/ejoc.201200945
日期:2012.10
Convenient and highly efficient syntheses of tetrasubstitutedfurans with flexible substituent patterns fromsimple and readily available starting materials have been developed. Under very mild conditions, with the mediation of stoichiometric nBu3P, simpleterminalactivatedolefins and acyl chlorides or anhydrides smoothly furnish tetrasubstitutedfurans in modest to excellent yields. This synthetic
Convergent Synthesis of Polysubstituted Furans via Catalytic Phosphine Mediated Multicomponent Reactions
作者:Xia Fan、Rongshun Chen、Jie Han、Zhengjie He
DOI:10.3390/molecules24244595
日期:——
Tri- or tetrasubstituted furans have been prepared from terminal activated olefins and acyl chlorides or anhydrides by a multicomponental convergent synthesis mode. Instead of stoichiometric nBu3P, only catalytic nBu3P or nBu3P=O is needed to furnish the furans in modest to excellent yields with a good functional group tolerance under the aid of reducing agent silane. This synthetic method features