Methyl 3-oxo-4-(3-phenylprop-2-enoxy)butanoate 、
L-脯氨醇 以
5,5-dimethyl-1,3-cyclohexadiene 为溶剂,
反应 6.0h,
生成 (3aS,5aS,8bR)-8b-(3-phenyl-allyl)-hexahydro-3,4-dioxa-8a-aza-as-indacen-2-one 、 (3aR,5aS,8bS)-8b-(3-phenyl-allyl)-hexahydro-3,4-dioxa-8a-aza-as-indacen-2-one 、
(3aS,5aS,8bR)-8b-(1-phenyl-allyl)-hexahydro-3,4-dioxa-8a-aza-as-indacen-2-one