Copper-Catalyzed Decarboxylative Disulfonylation of Alkynyl Carboxylic Acids with Sulfinic Acids,Organic Letters

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Copper-Catalyzed Decarboxylative Disulfonylation of Alkynyl Carboxylic Acids with Sulfinic Acids
Organic Letters ( IF 4.9 ) Pub Date : 2018-01-09 00:00:00 , DOI: 10.1021/acs.orglett.7b03922
Hong Fu ₁ , Jia-Qi Shang ₁ , Tao Yang ₁ , Yuehai Shen ₁ , Chuan-Zhu Gao ₁ , Ya-Min Li ₁

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A copper-catalyzed decarboxylative disulfonylation of alkynyl carboxylic acids with sulfinic acids in aqueous solution has been developed. The reaction provides a straightforward and practical access to (E)-1,2-disulfonylethenes, which are important building blocks in synthetic organic chemistry, and exhibits a good functional group tolerance and excellent stereoselectivity. A possible mechanism for the transformation is proposed.

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