The new and facile syntheses of ethyl 2-azido-2-alkenoate (4) and ethyl 3-azido-2-alkenoate (5) and the subsequent photolysis or pyrolysis of 4 and 5 to 2-alkyl-3-ethoxycarbonyl-2H-azirines and 3-alkyl-2-ethoxycarbonyl-2H-azirines, respectively, were accomplished.
已成功合成了乙基2-
叠氮基-2-烯酸酯(4)和乙基3-
叠氮基-2-烯酸酯(5),并通过光解或热裂解将4和5转化为2-烷基-3-乙oxycarbonyl-2H-氮杂环烯和3-烷基-2-乙oxycarbonyl-2H-氮杂环烯。