Metal-Free Direct Access to<i>N</i>-Sulfonyl Amidines from Sulfonamides and Secondary Amines Involving Tandem C–N Bond Formations
作者:Chandra Shekhar Nishad、Krishna Kanta Haldar、Biplab Banerjee
DOI:10.1021/acs.joc.2c01292
日期:2022.9.2
We report a mild and efficient metal-free one-pot procedure for the synthesis of N-sulfonyl amidines via the direct reaction of sulfonamides with secondaryamines without using any additives. A wide range of substrates with variety of functional groups is well tolerated under the reaction conditions. Preliminary mechanistic studies indicate that the secondaryamine plays a dual role as a C1 source