Tetrahedron p. 3497 - 3509 (1985)
Update date:2022-08-04
Topics:
Oppolzer, W.
Siles, S.
Snowden, R. L.
Bakker, B. H.
Petrzilka, M.
Efficient intramolecular cycloadditions of N-3-alkenyl- and N-4-alkenylnitrones proceed with opposite regioselection which is modified by dipolarophile-substituent effects.Polycyclic isoxazolidines are obtained in a highly stereocontrolled fashion, consistent with an endo-addition of the Z-nitrones.
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