Described herein is a novel visible-light-promoted three-component radical iodo-alkylative cyclization of alkynes using iodoform as a bifunctional iodine atom source. Visible-light irradiation of a polar–polar interaction complex of iodoform with malonate enables the cooperative hydrogen atom transfer process to generate alkyl radical and trigger a cascade reaction sequence.
S. Zhu, L. Jia, Q. Cheng, Y. Han, Q. Sun, H. Yu, X. Chen and H. Hou, Chem. Commun., 2024, 60, 10772 DOI: 10.1039/D4CC03908D
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