Overlooked potential of N, N-bidentate directing-groups in Ni-catalyzed C-H functionalization of benzamides

Chem Commun (Camb). 2023 Jan 5;59(4):482-485. doi: 10.1039/d2cc06177e.

Abstract

The Ni-catalyzed reactions of benzamides with bicyclic alkenes were explored using DFT calculations. An unprecedented "N-H deprotonation circumvented" catalytic mechanism was proposed, over the more common N-H/C-H activation mechanism, in which (i) the circumvention of N-H deprotonation ensures the presence of N-H⋯O hydrogen bond interaction, thereby stabilizing the critical ortho-C-H functionalization TS; and (ii) the N-H moiety retention results in a weak N⋯Ni σ-coordination, which is flexible to the configurational conversion during the key alkene insertion. These overlooked aspects of the functionalized N,N-bidentate directing groups will aid the design of new related catalytic reactions.

MeSH terms

  • Alkenes / chemistry
  • Antipsychotic Agents*
  • Benzamides* / chemistry
  • Catalysis
  • Density Functional Theory

Substances

  • Benzamides
  • Alkenes
  • Antipsychotic Agents