Synthesis of Functionalized Furans via Chemoselective Reduction/Wittig Reaction Using Catalytic Triethylamine and Phosphine
作者:Chia-Jui Lee、Tzu-Hsiu Chang、Jhen-Kuei Yu、Ganapuram Madhusudhan Reddy、Ming-Yu Hsiao、Wenwei Lin
DOI:10.1021/acs.orglett.6b01781
日期:2016.8.5
An efficient protocol for the synthesis of highly functionalized furans via intramolecular Wittigreaction has been developed using catalytic amounts of phosphine and triethylamine. Silyl chloride served as the initial promoter to activate the phosphine oxide. Reduction of the activated phosphine oxide by hydrosilane resulted in generation of phosphine, while decomposition of Et3N·HCl resulted in regeneration