Rh(II)‐Catalyzed Cascade Cyclization Between Azidobenzoic Acids and Diazopyrazolones for Construction of Spirobenzo[ d ][1,3]oxazin‐4‐ones
In the presence of Rh(II) 2 (OAc) 4 (10 mol%), Cu(I)OTf (10 mol%), and iso Pr‐PHOX L13 (20 mol%) in 1,2‐dichloroethane at 80 °C, the cascade cyclization between azidobenzoic acids and diazopyrazolones proceeded readily and furnished spirobenzo[ d ][1,3]oxazin‐4‐ones in reasonable chemical yields. The chemical structure of one compound has been confirmed by X‐ray diffraction analysis, and the others are suggested by inference.
Authors
- Hong‐Wu Zhao (ORCID: https://orcid.org/0000-0001-7933-4801)
- Yu‐Hang Mi
- Ya‐Hui Wang
- Ya‐Qi Yang
- Zhi‐Yu Wang
Institutions
- University of Science and Technology Beijing (CN)
Publication Details
- Journal
- European Journal of Organic Chemistry
- Published
- 2026-09-11
- DOI
- https://doi.org/10.1002/ejoc.70842
- Primary Topic
- Cyclopropane Reaction Mechanisms
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Beijing Municipal Commission of Education
- Beijing Municipal Natural Science Foundation