作者:Sabine Laschat、Elisabeth Kapatsina、Marie Lordon、Angelika Baro
DOI:10.1055/s-2008-1067184
日期:2008.8
A convergent synthesis of a series of 4,4′-functionalized 1,1′-biisoquinolines via 1-chloro-4-hydroxyisoquinoline and substituted biphenyl- and phenylpyrimidine ethers as building blocks is described. The latter were prepared by Williamson etherification of the respective 4-hydroxybiphenyl and -phenylpyrimidine precursors with dibromoalkanes, allowing variation of the spacer lengths. 1-Chloro-4-hydroxyisoquinoline
描述了一系列 4,4'-官能化 1,1'-二异喹啉通过 1-氯-4-羟基异喹啉和取代的联苯和苯基嘧啶醚作为结构单元的聚合合成。后者是通过威廉姆森醚化相应的 4-羟基联苯和-苯基嘧啶前体与二溴代烷烃制备的,允许间隔物长度的变化。1-Chloro-4-hydroxyisoquinoline 是由 N-邻苯二甲酰亚胺甘氨酸乙酯通过 Gabriel-Colman 反应作为关键步骤获得的。在碳酸钾存在下通过醚化连接结构单元得到异喹啉,其经受氯化镍 (II) 介导的同源偶联以产生配体系统。