Polyfunctional pyrazoles 5*. preparative synthesis of 1-aryl-4-formylpyrazole- 3-carboxylic acids
摘要:
Treatment of methyl pyruvate N-arylhydrazones with the Vilsmeier-Haack reagent gave methyl 1-aryl4- formylpyrazole-3-carboxylates, basic hydrolysis of which yielded the corresponding acids.
Polyfunctional pyrazoles 5*. preparative synthesis of 1-aryl-4-formylpyrazole- 3-carboxylic acids
摘要:
Treatment of methyl pyruvate N-arylhydrazones with the Vilsmeier-Haack reagent gave methyl 1-aryl4- formylpyrazole-3-carboxylates, basic hydrolysis of which yielded the corresponding acids.