Preparation of spirocyclic oxindoles by cyclisation of an oxime to a nitrone and dipolar cycloaddition

Beth L. Ritchie, Alexandra Longcake and Iain Coldham
Beilstein J. Org. Chem. 2025, 21, 1890–1896. https://doi.org/10.3762/bjoc.21.146
Structures extracted using BChemXtract (further structures may be extracted with future versions)