Synergic Effects of Ionic Liquid and Microwave Irradiation in Promoting Trifluoromethylpyrazole Synthesis |
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| Authors: | Lilian Buriol Clarissa P Frizzo Liziê D T Prola Dayse N Moreira Mara R B Marzari Elisandra Scapin Nilo Zanatta Helio G Bonacorso Marcos A P Martins |
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| Affiliation: | 1.Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química,Universidade Federal de Santa Maria,Santa Maria,Brazil;2.Laboratório de Química, Coordena??o de Engenharia Ambiental,Universidade Federal do Tocantins,Palmas,Brazil |
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| Abstract: | Abstract The synthesis of 5-trifluoromethyl-1-phenyl-1H-pyrazoles from the reactions of 4-alkoxy-1,1,1-trifluoro-3-alken-2-ones CF3C(O)CH=C(R1)OR, where R = Me, Et; R1 = H, Me, Bu, i-Bu, Ph, 4-MeC6H4, 4-FC6H4, 4-ClC6H4, 4-BrC6H4, 4-IC6H4, fur-2-yl] with phenyl hydrazine in the presence of ionic liquid BMIM]BF4] is reported. Synergic effects of ionic liquid and microwave irradiation in promoting pyrazole synthesis have been shown
for the first time. |
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