Microwave-assisted synthesis of bipyrazolyls and pyrazolyl-substituted pyrimidines |
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| Authors: | Antonio de la Hoz Angel Díaz Agustín Jiménez Amparo Ruiz |
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| Institution: | a Facultad de Químicas, Universidad de Castilla-La Mancha, E-13071 Ciudad Real, Spain
b Instituto de Química Médica (C.S.I.C.), Juan de la Cierva, 3, E-28006 Madrid, Spain |
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| Abstract: | We describe the preparation of 1,4′-bipyrazolyls and 4-pyrazolylpyrimidines by the reaction of 2-pyrazolyl-3-dimethylamino acrylate and acrylonitrile with double nucleophilic reagents such as hydrazines, urea and guanidine. Reactions were performed under microwave irradiation in 5-60 min. This is a useful procedure for the preparation of valuable compounds with applications in medicinal and coordination chemistry. |
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