A Useful Pd-Catalyzed Negishi Coupling Approach to Benzylic Sulfonamide Derivatives
作者:Gang Zhou、Pauline Ting、Robert Aslanian、John J. Piwinski
DOI:10.1021/ol800785g
日期:2008.6.1
mild catalytic system to access diversely functionalized benzylic sulfonamides has been developed. Palladium-catalyzed alpha-arylation by Negishi cross-coupling of sulfonamide-stabilized anions and a wide range of aryl iodides, bromides, and triflates constitutes a practical strategy for the synthesis of various benzylic sulfonamides.
One-Step Synthesis of Sulfonamides from <i>N</i>-Tosylhydrazones
作者:Andy S. Tsai、John M. Curto、Benjamin N. Rocke、Anne-Marie R. Dechert-Schmitt、Gajendrasingh K. Ingle、Vincent Mascitti
DOI:10.1021/acs.orglett.5b03545
日期:2016.2.5
The first described reaction between N-tosylhydrazone and SO2 is reported to provide alkyl sulfonamides in the presence of various amines. In this procedurally simple method, hydrazones of both unsaturated aldehydes and ketones proceed in moderate to excellent yields. Primary and secondary aliphatic amines are accommodated in this reaction, which provides a novel route to sulfonamides.