申请人:Allied Chemical Corporation
公开号:US04140717A1
公开(公告)日:1979-02-20
A process is described for directly mono-brominating or mono-chlorinating .alpha.,.alpha.-dialkoxyalkyl or .alpha.,.alpha.-dialkoxycycloalkyl ketoximes in the .beta.-position. Particularly described is the direct chlorination of 2,2-dimethoxycyclohexanone oxime to produce 3-chloro-2,2-dimethoxycyclohexanone oxime, a useful intermediate in the preparation of L-lysine.
描述了一种直接对.alpha.,.alpha.-二烷氧基烷基或.alpha.,.alpha.-二烷氧基环烷基酮肟在.beta.-位进行单溴化或单氯化的方法。特别描述了2,2-二甲氧基环己酮肟的直接氯化反应,生成3-氯-2,2-二甲氧基环己酮肟,这是制备L-赖氨酸的有用中间体。