3 years ago

Electrooxidative Tandem Cyclization of Activated Alkynes with Sulfinic Acids To Access Sulfonated Indenones

Electrooxidative Tandem Cyclization of Activated Alkynes with Sulfinic Acids To Access Sulfonated Indenones
Shan Tang, Huamin Wang, Xiao-Min Lin, Aiwen Lei, Fan Zhang, Dong Liu, Jiangwei Wen, Wenyan Shi
An electrooxidative direct arylsulfonlylation of ynones with sulfinic acids via a radical tandem cyclization strategy has been developed for the construction of sulfonated indenones under oxidant-free conditions. This method provides a simple and efficient approach to prepare various sulfonylindenones in good to excellent yields, demonstrating the tremendous prospect of utilizing electrocatalysis in oxidative coupling. Notably, this reaction could be easily scaled up with good efficiency.

Publisher URL: http://dx.doi.org/10.1021/acs.orglett.7b01256

DOI: 10.1021/acs.orglett.7b01256

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