Visible-Light-Enabled Decarboxylative Sulfonylation of Cinnamic Acids with Sulfonylhydrazides under Transition-Metal-Free Conditions

• DOI: 10.1021/acs.orglett.6b01353
• Publication Date: 2016-06-07T10:46:32Z
• Authors: Shunyou Cai; Yaohui Xu; Danling Chen; Lihuang Li; Qifa Chen; Mingqiang Huang; Wen Weng
• Keywords: Eosin Y; Decarboxylation; Cinnamic acid; Visible spectrum; Cinnamates; Sulfone

Decarboxylative cross-coupling reactions of cinnamic acids with sulfonylhydrazides were explored using oxygen as the sole terminal oxidant, realizing a conceptually novel technology for vinyl sulfone synthesis under synergistic interactions visible light irradiation, organic dye-type photocatalyst eosin Y, KI, and Cs2CO3 at room temperature.