1-(Pyrimidin-4-yl)pyrazol-5(4H)-one derivatives: I. Synthesis of 3-methyl-1-(6-methyl-2-methylsulfanylpyrimidin-4-yl)-pyrazol-5-ol and specificity of its Knoevenagel reaction

被引：0
作者：
A. V. Erkin
V. I. Krutikov
机构：
[1] St. Petersburg State Institute of Technology,
来源：
Russian Journal of General Chemistry | 2011年 / 81卷
关键词：
Pyrazole; Aromatic Aldehyde; Ethyl Acetoacetate; Hydrazono; Knoevenagel Reaction;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
3-Methyl-1-(6-methyl-2-methylsulfanylpyrimidin-4-yl)-1H-pyrazol-5-ol available via cyclocondensation of 6-methyl-2-methylsulfanylpyrimidin-4-ylhydrazine with ethyl acetoacetate reacted with aromatic aldehydes to give two kinds of products, 4-arylmethylidene-5-oxo-4,5-dihydropyrazole and arylbis(5-hydroxypyrazol-4-yl)methane derivatives, depending on the substituent in the aromatic aldehyde.
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页码：392 / 396
页数：4
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