Cooperative C-H activation of pyridine by PBP complexes of Rh and Ir can lead to bridging 2-pyridyls with different connectivity to the B-M unit.

ABSTRACT: Pyridine and quinoline undergo selective C-H activation in the 2-position with Rh and Ir complexes of a boryl/bis(phosphine) PBP pincer ligand, resulting in a 2-pyridyl bridging the transition metal and the boron center. Examination of this reactivity with Rh and Ir complexes carrying different non-pincer ligands on the transition metal led to the realization of the possible isomerism derived from the 2-pyridyl fragment connecting either via B-N/C-M bonds or via B-C/N-M bonds. This M-C/M-N isomerism was systematically examined for four structural types. Each of these types has a defined set of ligands on Rh/Ir besides 2-pyridyl and PBP. A pair of M-C/M-N isomers for each type was computationally examined for Rh and for Ir, totaling 16 compounds. Several of these compounds wer

SUBMITTER: Cao Y 

PROVIDER: S-EPMC8565379 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature