Related Products of 124004-31-5, These common heterocyclic compound, 124004-31-5, name is 5-Amino-1H-pyrazole-3-carboxylic acid, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.
5.2 Preparation of 5-(3,4-Dichloro-phenyl)-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidine-2-carboxylic acid 1-(3,4-Dichloro-phenyl)-4,4,4-trifluoro-butane-1,3-dione (1.00 g, 3.51 mmol) and 5-amino-1H-pyrazole-3-carboxylic acid (0.446 g, 3.51 mmoL) in acetic acid (100 mL) was heated at reflux for 48 hours. The reaction concentrated under reduced pressure and the crude product was purified by column chromatography on silica gel to give 5-(3,4-dichloro-phenyl)-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidine-2-carboxylic acid (1.20 g, 90%).
The synthetic route of 124004-31-5 has been constantly updated, and we look forward to future research findings.