水中高效一锅三组分合成功能化嘧啶并[4,5- b ]喹啉和茚并稠合吡啶并[2,3- d ]嘧啶的方法
摘要:
开发了一种简单,高效,高产的一锅法合成嘧啶并[4,5- b ]喹啉和茚并[2',1':5,6]吡啶[2,3- d ]嘧啶通过PTSA促进的生态友好型溶剂水中6-氨基-1,3-二甲基尿嘧啶,醛和环状1,3-二酮的三组分多米诺偶联。该方案避免使用昂贵的催化剂,有毒溶剂和色谱分离。证明了这种收敛性和环境友好方法的一般性和功能公差。
An Efficient synthesis of pyrimido[4,5-<i>b</i>]quinoline and indeno[2′,1′:5,6]pyrido[2,3-<i>d</i>]pyrimidine derivatives via multicomponent reactions in ionic liquid
作者:Shun-Jun Ji、Sai-Nan Ni、Fang Yang、Jing-Wen Shi、Guo-Lan Dou、Xiao-Yue Li、Xiang-Shan Wang、Da-Qing Shi
DOI:10.1002/jhet.5570450310
日期:2008.5
A series of pyrimido[4,5-b]quinoline and indeno[2′,1′:5,6]pyrido[2,3-d]pyrimidine derivatives were synthesized via the three-component reaction of an aldehyde, 6-aminopyrimidine-2,4-dione and 5,5-dimethyl-1,3-cyclohexanedione or 1,3-indanedione in ionic liquid 1-n-butyl-3-methylimidazolium bromide ([bmim]Br). This protocol has the advantages of easier work-up, milder reaction conditions, high yields