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Electrochemical Sulfonylation-Induced Lactonization of Alkenes: Synthesis of Sulfonyl Phthalides.

Jiajun YangGuodong LiKe YuBo XuQianjin Chen
Published in: The Journal of organic chemistry (2022)
An electrochemical cascade sulfonylation and lactonization process of alkenes and a most widely used arylsulfonylation reagent─sulfonyl hydrazines─was developed for the first time. This electrochemical sulfonyl lactonization avoided the use of toxic metal catalysts or stoichiometric oxidants and was carried out under mild conditions. The target product γ-sulfonylated phthalides with broad and excellent substrate tolerance were achieved.
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