Reaction of (chloro carbonyl) phenyl ketene with 5-amino pyrazolones: Synthesis, characterization and theoretical studies of 7-hydroxy-6-phenyl-3-(phenyldiazenyl)pyrazolo[1,5-a]pyrimidine-2,5(1H,4H)-dione derivatives
作者:Mahboobeh Zahedifar、Razieh Razavi、Hassan Sheibani
DOI:10.1016/j.molstruc.2016.07.043
日期:2016.12
Abstract New 7-hydroxy-6-phenyl-3-(phenyldiazenyl)pyrazolo[1,5- a ]pyrimidine-2,5(1 H ,4 H )-dione derivatives were synthesized from the reaction of (chlorocarbonyl)phenyl ketene and 5-amino pyrazolones in high to excellent yields and short reaction times. Structures of the new compounds were fully characterized by their spectral data IR, 1 H NMR, and 13 C NMR and by the theoretical results. Density
摘要 由(氯羰基)苯基乙烯酮与(氯羰基)苯基乙烯酮反应合成了新的7-羟基-6-苯基-3-(苯基二氮烯基)吡唑并[1,5-a]嘧啶-2,5(1 H ,4 H)-二酮衍生物。 5-氨基吡唑啉酮以高到极好的收率和较短的反应时间。新化合物的结构通过其光谱数据 IR、 1 H NMR 和 13 C NMR 以及理论结果进行了充分表征。密度泛函理论 (DFT) 用于优化结构,计算所需产品的能量和振动频率 IR 和 1 H NMR 屏蔽张量。将理论结果与实验数据进行了比较。