Polyethylene glycol-bonded 1,8-diazabicyclo-[5.4.0] undec-7-ene (PEG-DBU) as a surfactant-combined base catalyst for the application of nucleosides as reagents in multi-component syntheses of 8-substituted pyrido[2,3-d]-pyrimidine-6-carbonitriles in water

被引:27
|
作者
Shekouhy, Mohsen [1 ]
Khalafi-Nezhad, Ali [1 ]
机构
[1] Shiraz Univ, Coll Sci, Dept Chem, Shiraz 71454, Iran
关键词
POLYMER-SUPPORTED BASES; ONE-POT SYNTHESIS; ORGANIC-SYNTHESIS; GREEN CHEMISTRY; PHASE SYNTHESIS; IONIC LIQUID; ACID; EFFICIENT; CONDENSATION; DERIVATIVES;
D O I
10.1039/c5gc01448d
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Polyethylene glycol-bonded 1,8-diazabicyclo[5.4.0]undec-7-ene (PEG-DBU) was prepared as a new surfactant-combined base catalyst and successfully applied in the syntheses of some novel 8-substituted pyrido[2,3-d]pyrimidine-6-carbonitriles via one-pot multi-component reactions in water using nucleosides (adenosine, guanosine and cytidine) as starting materials. The application of PEG-DBU used water as an available, green, and benign reaction medium instead of commonly used hazardous solvents (DMF, DMSO etc.) for the manipulation of nucleosides.
引用
收藏
页码:4815 / 4829
页数:15
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