A process for preparing N-halo .alpha.,.alpha.-disubstituted .beta.-lactams comprising reacting a 3-halo 2,2-bis(halomethyl) propionamide with a sufficient amount of an aqueous solution of a hypohalite to form the corresponding N-halo 3,3-bis-(halomethyl)-2-azetidinone.
一种制备N-卤代.alpha.,.alpha.-二取代.beta.-内酰胺的方法包括将3-卤代2,2-双(卤甲基)丙酰胺与足够量的次卤酸盐
水溶液反应,以形成相应的N-卤代3,3-双(卤甲基)-2-氮杂环
丙酮。