Catalytic conversion of aryl triazenes into aryl sulfonamides using sulfur dioxide as the sulfonyl source?

Chemical Communications Pub Date: 2014-06-17 DOI: 10.1039/C4CC03481C

Abstract

Various sulfonamides have been synthesized from triazenes and sulfur dioxide. In the presence of just a catalytic amount of BF3·OEt2, a series of 1-aryl-triazenes were converted into sulfonyl hydrazines in good to excellent yields. When using CuCl2 as the catalyst, the corresponding sulfonamides can be produced from the 1-aryl triazenes in good yields.

Graphical abstract: Catalytic conversion of aryl triazenes into aryl sulfonamides using sulfur dioxide as the sulfonyl source
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