A cascade reaction for regioselective construction of pyrazole-containing aliphatic sulfonyl fluorides.

Org Biomol Chem

School of Chemistry, Chemical Engineering and Life Sciences; and State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China.

Published: May 2022

A copper-catalyzed cascade reaction of α-diazocarbonyl compounds with ethenesulfonyl fluoride (ESF) is developed, affording a variety of highly functionalized pyrazolyl aliphatic sulfonyl fluorides in good to excellent yields (66-98%). This transformation features broad substrates, exclusive regioselectivity, high atom economy and operational simplicity, thus providing a straightforward method for the direct construction of pyrazole-containing aliphatic sulfonyl fluorides, which will provide great applicable value in medicinal chemistry and other related disciplines.

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Source
http://dx.doi.org/10.1039/d2ob00515hDOI Listing

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