Environmentally friendly sonocatalysis promoted preparation of 1-thiocarbamoyl-3,5-diaryl-4,5-dihydro-1H-pyrazoles |
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| Authors: | Lucas Pizzuti Luciana A. Piovesan Alex F.C. Flores Frank H. Quina Claudio M.P. Pereira |
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| Affiliation: | aDepartamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil;bInstituto de Química, Universidade de São Paulo, CP 26077, 05513-970 São Paulo, SP, Brazil;cCentro de Capacitação e Pesquisa em Meio Ambiente (CEPEMA-USP), Universidade de São Paulo, 11573-000 Cubatão, SP, Brazil |
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| Abstract: | An efficient and green synthesis of thiocarbamoyl-3,5-diaryl-4,5-dihydro-1H-pyrazoles via the condensation of chalcones with thiosemicarbazide in ethanol and KOH under ultrasound irradiation is reported. The products were isolated in good yields after short reaction times. |
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| Keywords: | Ultrasound irradiation Pyrazoles Sonocatalysis Green chemistry |
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