| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for producing 1,5-disubstituted pyrazole-4-carboxylic acid ester with good efficiency, and yielding less amount of an isomer (1,3-disubstituted pyrazole-4-carboxylic acid ester). <P>SOLUTION: This production method of a pyrazole compound expressed by general formula (6) (wherein R<SP POS="POST">1</SP>and R<SP POS="POST">4</SP>each independently represents an alkyl group; and R<SP POS="POST">5</SP>represents an alkyl or phenyl group) obtained by reacting 2-acyl-3-(dibutylamino)acrylic acid ester expressed by general formula (1) (wherein R<SP POS="POST">1</SP>and R<SP POS="POST">4</SP>have same meaning as above) with a substituted hydrazine expressed by H<SB POS="POST">2</SB>N-NH-R<SP POS="POST">5</SP>(where R<SP POS="POST">5</SP>has same meaning as above). <P>COPYRIGHT: (C)2013,JPO&INPIT |
