A General Synthesis of 4-Substituted 6-(2-Imidazolinylamino)-5,8-dimethylquinolines
作者:Pamela E. Outt、Jeffrey J. Ares、George E. Roberts、Xiaodong Wang、Thomas L. Cupps、Fred C. Wireko
DOI:10.1021/jo971959g
日期:1998.8.1
A general synthesis of 4-substituted 6-(2-imidazolinylamino)-5,8-dimethylquinolines 1 has been developed. All new compounds were synthesized from a common intermediate, 5,8-dimethyl-6-nitro-4-quinolone 3, the structure of which was confirmed by X-ray crystallography. This methodology involved the conversion of 3 into either a 4-chloro- or 4-bromoquinoline followed by the introduction of various 4-substituents
已开发出4-取代的6-(2-咪唑啉基氨基)-5,8-二甲基喹啉1的一般合成物。所有新化合物均由常见的中间体5,8-二甲基-6-硝基-4-喹诺酮3合成,其结构已通过X射线晶体学证实。该方法涉及将3转化为4-氯-喹啉或4-溴喹啉,然后在合成序列后期引入各种4-取代基。以此方式引入的取代基包括烷基(18a),烷氧基(12a,12b),卤素(9、12c,16),氰基(18b),硫代烷基(12d),对乙酰氨基(14),羧酰胺基(19)和羟基( 10)。这项工作说明了4-卤代喹啉中间体在4-取代喹啉的一般合成中的用途。