Chinese Journal of Organic Chemistry    

ARTICLE

有机染料催化苄基C-H键的有氧光氧化

李文静*, 刘春叶, 梁玲玲, 苗延青, 尤静, 沈思语   

  1. 西安医学院药学院 西安 710021
  • 收稿日期:2026-03-20 修回日期:2026-04-08

The Photochemical C-H Oxidation of Alkylarenes to Aldehydes and Ketones by an Organic Photocatalyst

Li Wenjing*, Liu Chunye, Liang Lingling, Miao Yanqing, You Jing, Shen Siyu   

  1. School of pharmacy, Xi'an Medical University, Xi'an, 710021
  • Received:2026-03-20 Revised:2026-04-08
  • Contact: *E-mail: liwenjing@xiyi.edu.cn
  • Supported by:
    Foundation of Shaanxi Province Science and Technology Department of China (Nos. 2025JC-YBQN-136, 2025JC-YBMS-178), the Shaanxi Provincial Department of Education (No. 24JK0646) and Xi'an Medical University (Nos. 2023BS30).

Photooxygenation of benzylic C(sp3)-H by oxygen occurs efficiently under photoirradiation of Eosin Y to yield aldehydes and ketones, which is able to activate alkylarenes such as toluene and can overcome the overoxidation into carboxylic acids. This approach features cheap photocatalyst, broad substrate scope, easy scale up and further transformation. In addition, the photophysical characteristics of the Eosin Y and the reaction mechanism were also discussed.

Key words: photochemical, Eosin Y, benzylic C(sp3)-H, aldehydes and ketones