From the journal:

Chemical Communications

Photo-induced benzannulation of 1,3-dicarbonyl compounds with alkynes under external-oxidant-free conditions

Kai-Li Yu,a   Xiu-Long Yang, ORCID logo *a   Hao-Yuan Li,bc   Qiong Liu,a   Bo-Miao Bai,a   Jiahui Shen,a   Qing-Yuan Meng ORCID logo *bc  and  Xiaoying Niu ORCID logo *a  

* Corresponding authors

a Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, State Key Laboratory of New Pharmaceutical Preparations and Excipients, Hebei Research Center of the Basic Discipline of Synthetic Chemistry, Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
E-mail: yangxl@hbu.edu.cn, niuxy@hbu.edu.cn

b Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
E-mail: mengqingyuan@iccas.ac.cn

c University of Chinese Academy of Sciences, Beijing 100049, P. R. China

Abstract

Polycyclic aromatic hydrocarbons (PAHs) represent architecturally important frameworks that are frequently found in natural products. Herein, a C–H bond activation approach for 1,3-dicarbonyl compounds is disclosed that proceeds coupling with alkynes to deliver polysubstituted naphthols via photoredox and cobaloxime catalysis. This protocol is distinguished without using a stoichiometric amount of oxidants, Lewis acids, bases or pre-halogenation of the substrates.

Graphical abstract: Photo-induced benzannulation of 1,3-dicarbonyl compounds with alkynes under external-oxidant-free conditions

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Article information

DOI
https://doi.org/10.1039/D6CC00506C
Article type
Communication
Submitted
25 Jan 2026
Accepted
16 Mar 2026
First published
17 Mar 2026

Chem. Commun., 2026, Advance Article

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Photo-induced benzannulation of 1,3-dicarbonyl compounds with alkynes under external-oxidant-free conditions

K. Yu, X. Yang, H. Li, Q. Liu, B. Bai, J. Shen, Q. Meng and X. Niu, Chem. Commun., 2026, Advance Article , DOI: 10.1039/D6CC00506C

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