Citation:
Omid Goli Jolodar, Farhad Shirini, Mohadeseh Seddighi. Efficient synthesis of pyrano[2,3-d]pyrimidinone and pyrido[2,3-d]pyrimidine derivatives in presence of novel basic ionic liquid catalyst[J]. Chinese Journal of Catalysis,
;2017, 38(7): 1245-1251.
doi:
10.1016/S1872-2067(17)62827-4
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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.
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