Issue 20, 2022

Iridium complex immobilized on a high-nitrogen containing covalent triazine framework derived from 2,5-pyrazinedicarbonitrile as a recyclable catalyst for the selective N-alkylation of aminobenzenesulfonamides with alcohols

Abstract

A new-type of covalent triazine framework derived from 2,5-pyrazinedicarbonitrile as a monomer with a high N/C ratio was designed and synthesized by trimerization at 400 °C with ZnCl2 as a catalyst and salt melt via the ionothermal technique. After the metalation, the resulting Cp*Ir@CTF was proven to be a general and efficient catalyst for the selective N-alkylation of aminobenzenesulfonamides with alcohols to amino-(N-alkyl)benzenesulfonamides. Furthermore, the synthesized catalyst could be recycled by simple filtration without obvious loss of activity during six cycles. Notably, this research exhibited the practical utilization of covalent triazine framework-supported transition metal catalysts for the hydrogen autotransfer process.

Graphical abstract: Iridium complex immobilized on a high-nitrogen containing covalent triazine framework derived from 2,5-pyrazinedicarbonitrile as a recyclable catalyst for the selective N-alkylation of aminobenzenesulfonamides with alcohols

Supplementary files

Article information

Article type
Research Article
Submitted
24 apr 2022
Accepted
15 aug 2022
First published
16 aug 2022

Mater. Chem. Front., 2022,6, 3006-3015

Iridium complex immobilized on a high-nitrogen containing covalent triazine framework derived from 2,5-pyrazinedicarbonitrile as a recyclable catalyst for the selective N-alkylation of aminobenzenesulfonamides with alcohols

C. Yang, S. Hao, L. Shen, P. Liu, J. Yang and F. Li, Mater. Chem. Front., 2022, 6, 3006 DOI: 10.1039/D2QM00357K

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