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12.1.1.2.1.1.3 Method 3: From β-Oxoaldehydes and Hydrazines

DOI: 10.1055/sos-SD-012-00002

Stanovnik, B.; Svete, J.Science of Synthesis, (20021225.

β-Oxoaldehydes and their sodium salts cyclize with hydrazines affording 3-substituted pyrazoles 9 (Scheme 11) by heating in ethanol or methanol.[‌84‌‌89‌]

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