PRODUCING METHOD FOR 3-DIFLUOROMETHYLPYRAZOLE COMPOUND, PRODUCING METHOD FOR 3-DIFLUOROMETHYLPYRAZOLE-4-CARBOXYLIC ACID COMPOUND, AND PYRAZOLIDINE COMPOUND
申请人:FUJIFILM Corporation
公开号:US20210061766A1
公开(公告)日:2021-03-04
Provided are producing methods for a 3-difluoromethylpyrazole compound and a 3-difluoromethylpyrazole-4-carboxylic acid compound, which include, in a reaction solvent containing a specific solvent, subjecting a difluoroacetyl group-containing compound, a hydrazine compound, and formaldehyde to a cyclocondensation reaction, and subsequently oxidizing the obtained pyrazole compound precursor, and a pyrazolidine compound represented by a specific formula in these producing methods.
提供了一种制备3-二氟甲基吡唑化合物和3-二氟甲基吡唑-4-羧酸化合物的方法,包括在含有特定溶剂的反应溶剂中,将含有二氟乙酰基基团的化合物、肼化合物和甲醛进行环缩合反应,然后氧化所得的吡唑化合物前体和这些制备方法中的特定公式所表示的吡唑烷化合物。