Synthesis of enantiopure ethyl (1S,9aS)- and (1S,9aR)-1-phenyl-4,9-dioxohexahydro-pyrrolo[1,2-d][1,4]oxazepine-9a(7H)-carboxylate by carbenoid/ylide/Stevens-[1,2]-shift with ring enlargement

Synthesis of enantiopure ethyl (1S,9aS)- and (1S,9aR)-1-phenyl-4,9-dioxohexahydro-pyrrolo[1,2-d][1,4]oxazepine-9a(7H)-carboxylate by carbenoid/ylide/Stevens-[1,2]-shift with ring enlargement / Chelucci, Giorgio Adolfo; Saba, A; Valenti, R; Bacchi, A.. - In: TETRAHEDRON-ASYMMETRY. - ISSN 0957-4166. - 11:(2000), pp. 3449-3453.