Reaction of 4-aryl-3,5-dihydroxypyrazoles with α-arylmalononitriles led to a series of 2,6-diaryl derivatives of 1(3)-oxo-3(1)-hydroxy-5(7)-imino-7(5)-amino- 1H5H(3H,7H)-pyrazolo[1,2-a]pyrazole. Spectral results and tautomerism of these new products are also discussed.
4-芳基-3,5-二羟基
吡唑与δ-芳基
丙二腈反应,产生了一系列 1(3)-氧代-3(1)-羟基-5(7)-亚
氨基-7(5)-
氨基-1H5H(3H,7H)-
吡唑并[1,2-a]
吡唑的 2,6-二芳基衍
生物。 此外,还讨论了这些新产品的光谱结果和同分异构现象。