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Visible light-driven oxidative coupling of dibenzylamine and substituted anilines with 2D WSe2 nanomesh material

Abstract

A novel 2D WSe2 nanomesh material was synthesized with a 3D SBA-15 mesoporous material via nanocasting strategy. The formation of the 2D sheet-like nanomesh structure of WSe2 inside a 3D confined pore space is mainly attributed to the synergistic effect arising from the crystal self-limitation growth caused by the layered crystal structure of WSe2 material and to the space-limitation effect coming from the unique pore structure of the SBA-15 template. The 2D WSe2 nanomesh material possesses extremely high exposure of the crystal layer edges, making it an excellent photocatalyst. It shows good visible light-driven photocatalytic performence in oxidative coupling of dibenzylamine and 2-amino/hydroxy/mercaptoanilines to prepare a group of heterocyclic compounds, including benzimidazoles, benzoxazoles and benzothiazoles with oxygen as the sole oxidant. Gram-scale experiment was also carried out to exhibit the value of this method.

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Supplementary files

Article information


Submitted
09 Jul 2020
Accepted
01 Oct 2020
First published
02 Oct 2020

Nanoscale, 2020, Accepted Manuscript
Article type
Paper

Visible light-driven oxidative coupling of dibenzylamine and substituted anilines with 2D WSe2 nanomesh material

K. Chai, Y. Shi, Y. Wang, P. Zou, Q. Yuan, W. Xu and P. Zhang, Nanoscale, 2020, Accepted Manuscript , DOI: 10.1039/D0NR05128D

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