| 摘要 |
A process for producing a pyrazolecarboxamide derivative represented by formula (C) which comprises reacting a pyrazolecarboxylic ester compound represented by formula (A) with an amine compound represented by formula (B) in the presence of a Lewis acid: <IMAGE> (A) <IMAGE> (B) <IMAGE> (C) wherein R1 represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group; R2 represents a substituted or unsubstituted alkyl group; and R3 and R4 each represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group, provided that R3 and R4 may be bonded to each other to form a ring.
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