A one-step synthesis of pyrazolone

被引：4
|
作者：
Eller, Gernot A. [1 ]
Holzer, Wolfgang [1 ]
机构：
[1] Univ Vienna, Dept Drug Synth, Althanstr 14, A-1090 Vienna, Austria
来源：
MOLBANK | 2006年 / 01期
关键词：
Pyrazolone; cyclization; NMR spectroscopy; tautomerism;
D O I：
10.3390/M464
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
The fully unsubstituted pyrazolone (= 2-pyrazolin-5-one, which is tautomer to 1H-pyrazol-3-ol and 1H-pyrazol-5-ol) was prepared from hydrazine hydrate and methyl (2E)-3-methoxyacrylate in almost quantitative yield. Detailed spectroscopic data (H-1 NMR, C-13 NMR, N-15 NMR, MS) for this compound are presented.
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页数：3
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