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
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.
Electrochemical Coupling of Arylsulfonyl Hydrazides and Tertiary Amines for the Synthesis of β-Amidovinyl Sulfones
作者:Han-Sung Kim、Sunwoo Lee
DOI:10.1002/ejoc.201901277
日期:2019.11.10
β‐Amidovinyl sulfones were synthesized by the electrochemical reaction of arylsulfonylhydrazides and tertiaryamines.
β-氨基乙烯基砜是通过芳基磺酰肼与叔胺的电化学反应合成的。
Nucleophilic substitution at sulfonyl sulfur atom: Aminolysis of 1-tosyl-3-methyl imidazolium chloride in aqueous medium.
作者:Pierre Monjoint、Marie-Françoise Ruasse
DOI:10.1016/s0040-4039(01)91003-2
日期:1984.1
reactions. The activation parameters and the value of the brønsted exponent, β = 0.48, are consistent with a small degree of bonding between the entering amine and the sulfuratom in the transition state. Similarities in the nucleophilic behavior of sulfonyl and carbonyl groups are detected.
A novel nucleophilicsubstitutionreaction at the nitrogen of arylsulfonamides by means of phosphide anions has been described. This reaction allows for the efficient transformation of arylsulfonamides into synthetically valuable phosphamides, amines, and a variety of protected amines.