Oral Presentation Royal Australian Chemical Institute National Congress 2026

Photochemical approaches to sustainable aromatic C–N bond formation (138075)

Wenhao Zhao 1 , Jinqiang Zhang 1 , Paul Low 1 , Hongqi Sun 1
  1. The University of Western Australia, Perth, WA, Australia

Aniline is a key intermediate in the production of polymers, dyes, pharmaceuticals, and advanced materials. Its conventional manufacture relies on the nitration-reduction sequence, a multi-step process associated with high energy consumption and waste generation. Developing direct and sustainable routes to synthesise aniline therefore remains an important challenge in green chemistry. Here, we explore a light‑assisted catalytic concept for the direct aromatic amination. By designing a new catalyst, we investigate how photoinduced interfacial charge activation can promote selective C–N bond formation under comparatively mild conditions. This approach couples benzene C–H activation with nitrogen-containing reagent transformation within a single catalytic platform, avoiding pre-functionalised intermediates and external oxidants. Particular emphasis is placed on understanding how metal-support interactions and interfacial electronic structure influence charge separation, reaction pathways, and selectivity. This work aims to establish a proof-of-concept light-driven route for aromatic amination pathway and to assess its potential as a more sustainable alternative to conventional thermal processes.

  1. W. Zhao, H. Chen, J. Zhang, P. J. Low and H. Sun, Chemical Science, 2024, 15, 17292-17327.