首页>
外国专利>
A PROCESS FOR THE REGIOSELECTIVE SYNTHESIS OF 2,2-DIALKYL-4-SUBSTITUTED PIPERIDINES
A PROCESS FOR THE REGIOSELECTIVE SYNTHESIS OF 2,2-DIALKYL-4-SUBSTITUTED PIPERIDINES
展开▼
机译:2,2-二烷基-4-取代哌啶的区域选择性合成的方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
The present invention provides a process for preparing a compound of formula (I): wherein R?1 and R2¿ each independently represent C¿1?-C4 alkyl; and X represents an alkyl, alkenyl, cycloalkyl, aryl, substituted aryl, heterocycle, or substituted heterocycle, comprising treating a compound of formula (II): wherein Q represents Cl or Br, with a suitable base followed by addition of a suitable Lewis acid and addition of a compound of formula R?-M+¿ wherein M+ is a suitable cation.
展开▼