The dehydrochlorination of alkanoyl chlorides with triethylamine in the presence of α-iminoesters produced 3-alkyl-4-alkoxycarbonyl β-lactams in excellent yields and high stereoselectivity.
在α-亚
氨基酯存在下,用
三乙胺对烷酰
氯进行脱
氯化氢反应,可制得3-烷基-4-烷氧基羰基β-内酰胺,产率高,立体选择性高。