Chinese Journal of Catalysis ›› 2017, Vol. 38 ›› Issue (7): 1245-1251.DOI: 10.1016/S1872-2067(17)62827-4

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Efficient synthesis of pyrano[2,3-d]pyrimidinone and pyrido[2,3-d]pyrimidine derivatives in presence of novel basic ionic liquid catalyst

Omid Goli Jolodar, Farhad Shirini, Mohadeseh Seddighi   

  1. Department of Chemistry, Faculty of Sciences, University of Guilan, Rasht 41335, Iran
  • Online:2017-07-18 Published:2017-06-27
  • Contact: 10.1016/S1872-2067(17)62827-4

Abstract:

A basic ionic liquid, namely 1,1'-(butane-1,4-diyl)bis(1,4-diazabicyclo[2.2.2]octan-1-ium) hydrox-ide, was prepared and characterized using Fourier-transform infrared spectroscopy, 1H nuclear magnetic resonance spectroscopy, and pH measurements. The ionic liquid was used for efficient promotion of the synthesis of pyrano[2,3-d]pyrimidinone and pyrido[2,3-d]pyrimidine derivatives at room temperature under grinding conditions. A simple procedure, short reaction time, high yields, non-column chromatographic separation, commercial availability of the starting materials, and recyclability of the catalyst are attractive features of this process.

Key words: Basic catalyst, Multicomponent reaction, Pyrimidine derivative, Grinding