Green multicomponent synthesis of 1,2-dihydro-pyrimido[1,2-<i>a</i>]-benzimidazole-3-carbonitrile
作者:Guangmin Liu、Qingqing Shao、Shujiang Tu、Longji Cao、Chunmei Li、Dianxiang Zhou、Baoping Han
DOI:10.1002/jhet.5570450429
日期:2008.7
1,2-dihydro-pyrimido[1,2-a]benzimidazole-3-carbonitrile derivatives were synthesized via the three-component reaction of aldehyde, malonodinitrile and 2-aminobenzimidazole in water under microwave irradiation. The new protocol has the advantages of excellent yield, low cost, reduced environment impact, wide scope and convenient procedure.
通过醛,丙二腈和2-氨基苯并咪唑在微波辐射下的三组分反应,合成了1,2-二氢嘧啶并[1,2- a ]苯并咪唑-3-腈衍生物。新协议具有产量高,成本低,对环境影响小,适用范围广,操作方便等优点。