Efficient Synthesis of 2‐(<i>N</i>‐Substituted)‐2‐imidazolines and 2‐(<i>N</i>‐Substituted)‐1,4,5,6‐tetrahydropyrimidines
作者:Wai Ming Kan、Shih‐Hsun Lin、Ching‐Yuh Chern
DOI:10.1080/00397910500213005
日期:2005.10.1
Abstract A general method for the preparation of 2‐(N‐Substituted)‐2‐imidazolines and 2‐(N‐Substituted)‐1,4,5,6‐tetrahydropyrimidines is described. These heterocycles can be synthesized from their respective anilines with 2‐chloro‐2‐imidazoline or 2‐chloro‐1,4,5,6‐tetrahydropyrimidine, generated in situ from imidazolidin‐2‐one and tetrahydropyrimidin‐2(1H)‐one activated by dimethyl chlorophosphate
摘要描述了制备 2-(N-取代)-2-咪唑啉和 2-(N-取代)-1,4,5,6-四氢嘧啶的一般方法。这些杂环可以由它们各自的苯胺与 2-氯-2-咪唑啉或 2-氯-1,4,5,6-四氢嘧啶合成,由咪唑啉-2-酮和四氢嘧啶-2(1H)-酮原位生成氯磷酸二甲酯活化,收率良好。