Reactions of regioisomeric fluoroalkyl-containing ?-aminovinyl ketones with hydrazines
作者:K. I. Pashkevich、V. I. Filyakova、O. A. Kuznetsova
DOI:10.1007/bf01430665
日期:1996.12
Fluoroalkyl β-alkyl-β-aminovinyl ketones react with hydrazine hydrate to give the respective razoles and with phenylhydrazine they form a mixture of pyrazoles and 5 hydroxy-δ2-pyrazolines. Alkyl(aryl) β-fluoroalkyl-β-aminovinylketones do not react with the hydrazines mentioned above. With 2,4-dinitrophenylhydrazine, both types of fluoroalkyl-containing β-aminovinyl ketones give only hydrazones of the
氟代烷基 β-烷基-β-氨基乙烯基酮与水合肼反应生成各自的拉唑,与苯肼反应生成吡唑和 5 羟基-δ2-吡唑啉的混合物。烷基(芳基)β-氟烷基-β-氨基乙烯基酮不与上述肼反应。对于 2,4-二硝基苯肼,两种类型的含氟烷基的 β-氨基乙烯基酮仅产生相应甲基烷基(芳基)酮的腙。