Debenzylative Sulfonylation of Tertiary Benzylamines Promoted by Visible Light
作者:Ying Fu、Qing‐Kui Wu、Zhengyin Du
DOI:10.1002/ejoc.202100144
日期:2021.3.26
A visiblelight photocatalytic debenzylative sulfonylation of tertiary benzylamines is described, affording a series of sulfonamides in high yields. This operationally simple transformation showed high functional group compatibility and wide substrate scope.
A catalyst‐free, charge‐transfer complex promoted coupling of sulfonyl chlorides with vicinal tertiary diamines to generate sulfonamides is presented. Mechanistic studies showed that these reactions are proceeded via charge transfer of vicinal tertiary diamines to sulfonyl chlorides, forming the unstable sulfonyl quaternary ammonium like complexes which induced the regiospecific intramolecular C−N