A series of 3-acyl-4-amino-1-aryl-1H-pyrazoles has been prepared by reaction of β-enaminones with benzenediazonium tetrafluoroborates substituted especially by fluorine-containing groups (F, CF3, and OCF3). The compounds prepared have been characterized by means of 1H and 13C NMR spectroscopy. In the case of reaction of 5-phenylaminohept-4-en-3-one with 2,6-dichloro-4-trifluoromethylbenzenediazonium
通过使β-烯酮与特别是被含氟基团(F,CF 3和OCF 3)取代的苯重氮四氟硼酸酯反应,制备了一系列的3-酰基-4-氨基-1-芳基-1 H-吡唑。制备的化合物已经通过1 H和13 C NMR光谱表征。在反应的情况下5-phenylaminohept-4-en-3-one与2,6-二氯-4-三氟甲基苯重氮四氟硼酸盐的偶氮偶合产物在相应的苯基氨基上吡唑已被分离和鉴定。中间(从烯胺酮到吡唑的途径中的4-(4-甲氧基苯基二氮烯基)-5-甲基氨基庚-4-烯-3-酮已被分离。J.杂环化学,(2009)。