DOI: 10.1039/d3ob01078c ISSN:
Synthesis of tetracyclic dibenzo[b,f][1,4]oxazepine-fused β-lactams via visible-light-induced Staudinger annulation
Jiao-Mei Wang, Yu Zhao, Wen-Ping Li, Xiang-Jun Kong, Chang-Sheng Yao, Kai Zhang- Organic Chemistry
- Physical and Theoretical Chemistry
- Biochemistry
An efficient visible-light-induced Staudinger [2 + 2] annulation reaction under catalyst-free conditions has been established, and tetracyclic dibenzo[b,f][1,4]oxazepine/thiazepine-fused β-lactams were synthesized with a broad substrate scope and high efficiency (37 examples, up to >99% yield).