Palladium-Catalyzed Synthesis of Aryl Vinyl Sulfides via 1,3-Oxathiolanes As Vinyl Sulfide Surrogates
作者:Jason R. Schmink、Summer A. Baker Dockrey、Tianyi Zhang、Naomi Chebet、Alexis van Venrooy、Mary Sexton、Sarah I. Lew、Steffany Chou、Ami Okazaki
DOI:10.1021/acs.orglett.6b03249
日期:2016.12.16
A nontraditional approach to synthesizing arylvinylsulfides is described. 2,2-Diphenyl-1,3-oxathiolane slowly liberates a vinylsulfide anion under basic conditions. Using a Pd/Xantphos catalyst system to activate a wide range of aryl bromides, this transient sulfide species can be effectively trapped and fed into a traditional Pd0/PdII catalytic cycle. Scope and limitations of the methodology are