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Beilstein J. Org. Chem. 2023, 19, 1234–1242, doi:10.3762/bjoc.19.91
Graphical Abstract
Scheme 1: Representative cascade reactions of Michael adducts of 3-methyleneoxindoles.
Figure 1: Crystal structure of dispiro compound 3a.
Figure 2: Crystal structure of compound 4a.
Scheme 2: Proposed reaction mechanism.