Solvent‐free condensation of aromatic aldehydes and 2,3‐dimethyl‐1‐phenyl‐3‐pyrazolin‐5‐one by <i>p</i>‐toruenesulfonic acid
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説明
<jats:title>Abstract</jats:title><jats:p>Solvent‐free condensation easily occurred by mixing aromatic aldehydes and 2,3‐dimethyl‐1‐phenyl‐3‐pyrazoline‐5‐one (antipyrine) in the presence of <jats:italic>p</jats:italic>‐toluenesulfonic acid as a solid acid catalyst at room temperature to give the corresponding disubstituted products as sole products in high yields.</jats:p>
収録刊行物
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- Journal of Heterocyclic Chemistry
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Journal of Heterocyclic Chemistry 39 1087-1088, 2002-09-01
Wiley