Dithiane Induced Cycloaddition/Aromatization Tactic for the Synthesis of Multisubstituted Furans
作者:Junshan Lai、Yongping Liang、Teng Liu、Shouchu Tang
DOI:10.1021/acs.orglett.6b00699
日期:2016.5.6
The development of a new transition-metal-free tactic for convergent, one-pot synthesis of multisubstituted furans by beta-chloro-vinyl dithiane cyclization with aldehydes is described. Key to the success was the development of a new vinylidene dithiane site as a donor allene that generates the active dihydrofuran, which undergoes in situ aromatization under mild conditions.