Photocatalytic Chemoselective Cyclic Oxysulfonylation of 2,3-Allenoic Acids
Yaqi Shi1, Chunling Fu1, Jian Zheng1
1Laboratory of Molecular Recognition and Synthesis Department of Chemistry, Zhejiang University, Hangzhou 310058, Zhejiang, People's Republic of China.
Abstract:
Photoinduced cyclization of 2,3-allenoic acids with sulfonyl chloride providing an efficient synthesis of 4-sulfonylated furan-2(5H)-ones under mild reaction conditions has been achieved. The reaction enjoys a high chemoselectivity and tolerates a wide range of functional groups. The catalytic cycle has been validated through control experiments, cyclic voltammetry studies, and Stern-Volmer quenching studies.
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