Copper(II) NHC pincer complexes containing 1,2,3-triazole units: Synthesis, structure and catalysis for C─N bond forming reactions.

ABSTRACT: Two new tridentate copper(II) N-heterocyclic carbene (NHC) pincer complexes with triazolyl donor groups, L2, [TrzmPymBI][PF₆] and L3, [bTrzmBI][PF₆], were synthesized and characterized by X-ray single crystal analysis and elemental analysis. The 5-coordinate τ value shows distorted square pyramidal geometry for both complexes. These copper(II)-NHC complexes exhibited excellent catalytic activity (95-100 % conversion) for N─H insertion reactions toward the formation of new N─C bonds between aniline and methyl phenyldiazoacetate. Under optimized conditions, the catalyst was screened against 22 different aniline derivatives and achieved high conversion (65-100 %) toward both electron-donating and electron-withdrawing functional groups on the amine substrate

SUBMITTER: Teimouri M 

PROVIDER: S-EPMC12889184 | biostudies-literature | 2025 May

REPOSITORIES: biostudies-literature