| 摘要 |
<p>The invention relates to a method for producing 1-alkyl- or 1-aryl-substituted 5-pyrazole-carboxylic acid derivatives, having the steps of converting substituted 1,3-dioxolanes and 1,4-dioxanes into 1-alkyl- or 1-aryl-substituted dihydro-1H-pyrazoles with alkyl or aryl hydrazines, and further reacting said pyrazoles into 1-alkyl- or 1-aryl-substituted 5-pyrazole-carboxylic acid derivatives, which can be used as valuable intermediate products for producing anthranilic acid amides that have an insecticidal effect.</p> |
