2006

Azetidine derivativesR 0045 Decarboxylative Ring Contractions and Olefin Insertions of Vinyl Oxazinanones.

— A unique ring contraction of cyclic carbamates that diastereoselectively produces vinyl azetidines is developed. Decarboxylation of the vinyl oxazinanones in the pres-ence of Michael acceptors results in cycloaddition to form highly substituted piper-idines. — (WANG, C.; TUNGE*, J. A.; Org. Lett. 8 (2006) 15, 3211-3214; Dep. Chem., Univ. Kans., Lawrence, KS 66045, USA; Eng.) — R. Steudel

47- 113

2006