A facile synthesis of some novel ( E )-3-styryl-1-phenylcyclohepta[ c ]pyrazol-8(1 H )-ones via the condensation reaction of 3-cinnamoyltropolones with phenylhydrazine is described. All the synthesized compounds were obtained in good yields of 62–69 % and their structures were characterized by IR, 1H NMR, MS, and elemental analysis. This procedure offers easy access to tropone-fused pyrazole derivatives
描述了一种通过3-肉桂酰基对苯二酚与苯肼的缩合反应轻松合成一些新颖的( E )-3-苯乙烯基-1-苯基环庚[ c ]吡唑-8(1 H )-一。所有合成的化合物均以62-69%的高收率获得,其结构通过IR,1 H NMR,MS和元素分析进行了表征。该程序使得在短的反应时间内容易获得与托酮融合的吡唑衍生物,并且以良好的收率获得了产物。