2,2'-Bibenzimidazole-Based Hyper-Cross-Linked Polymer Supported-Iridium Complex: A Recyclable Metal-Polymer Ligand Bifunctional Catalyst for the α-Methylation of Arylacetonitriles with Methanol.

Authors

Deyun Liu, Xiaozhong Chen, Beixuan Dong, Yuexin Ji, Junjie Yu, Shouhai Zhang, Feng Li

Published in

The Journal of organic chemistry. Jun 02, 2025. Epub Jun 02, 2025.

Abstract

A metal-polymer ligand bifunctional catalyst Cp*Ir@HCPs-(2,2'-BiBzlmH₂) was synthesized by the coordinative immobilization of [Cp*IrCl][Cl] on HCPs-(2,2'-BiBzlmH₂). In the presence of a catalyst (1 mol % Ir) and Cs₂CO₃ (0.2 equiv), the α-methylation of arylacetonitriles with methanol was performed at 125 °C for 12 h to give desirable products in high yields. More importantly, the catalyst could be recycled without an obvious loss of activity during six cycles. Mechanistic experiments revealed that NH functional groups in the ligand are crucially important for hydrogen transfer.

PMID:
40455946
Bibliographic data and abstract were imported from PubMed on 03 Jun 2025.

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