Visible-Light-Induced Synthesis of Alkylsulfonated Isoquinolinones from 2-Aryl Indoles/Benzimidazoles through Insertion of Sulfur Dioxide.
JOURNAL OF ORGANIC CHEMISTRY(2023)
摘要
A visible-light-induced three-component reaction of 2-aryl indoles/benzimidazoles, Hantzsch esters, and sodium pyrosulfite through a radical cascade cyclization process with the insertion of sulfur dioxide is described. It provides a novel and powerful way for the synthesis of alkylsulfonated isoquinolinones. Hantzsch esters and NaSO are employed as alkyl radical precursors and SO surrogate, respectively. This transformation exhibits good functional group tolerance and substrate applicability under mild conditions.
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关键词
alkylsulfonated isoquinolinones,indoles/benzimidazoles,synthesis,visible-light-induced
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