Reaction of sulfonimidoyl fluorides with anilines and Ca(NTf2)2 results in the formation of chiral sulfonimidamides. The reaction proceeds with inversion of the stereocenter at a sulfur atom. Enantiospecificity of the reaction was observed for all studied non-heterocyclic anilines. Combined experimental and computational mechanistic studies highlight chelate-type coordination of the sulfonimidoyl group
磺
酰亚胺酰
氟与
苯胺和Ca(NTf 2 ) 2反应导致形成手性磺
酰亚胺酰胺。反应随着
硫原子立体中心的反转而进行。对于所有研究的非杂环
苯胺,观察到反应的对映特异性。结合实验和计算机理的研究强调了磺酰亚
氨基与Ca(NTf 2 ) 2的螯合型配位以及类S N 2 过渡态的形成,其中F -与Ca 2+离子配位。