Pyridine → 1-benzyl-3,5-dimethyl-1H-pyrazole-4-carboxylic acid ethyl ester

Beteiligte Stoffe

Reaktionsschritte

Similar to Example 1, equimolar amounts of benzylhydrazine dihydrochloride and 2-acetyl-3-oxo-butyric acid ethyl ester were combined in a solution of 50% pyridine in ethanol. The resulting oil was determined to be the named product by 1H-NMR (CDCl3, ppm): 1.35 t (3H); 2.44 s (3H); 2.45 s (3H); 4.38 a (2H); 5.25 s (2H); 7.08 d (2H); 7.29 m (3H).

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