1,5-dimethyl-3-(trifluoromethyl)-1h-pyrazole-4-carboxylic acid

Base Information

• Chemical Name: 1,5-dimethyl-3-(trifluoromethyl)-1h-pyrazole-4-carboxylic acid
• CAS No.: 926913-64-6
• Molecular Formula: C₇H₇F₃N₂O₂
• Molecular Weight: 208.14
• Hs Code.: 2933199090
• Mol file: 926913-64-6.mol

Synonyms:1,5-DIMETHYL-3-(TRIFLUOROMETHYL)-1H-PYRAZOLE-4-CARBOXYLIC ACID;

Chemical Property of 1,5-dimethyl-3-(trifluoromethyl)-1h-pyrazole-4-carboxylic acid

Chemical Property:

• Boiling Point: 280.9±40.0 °C (760 mmHg)
• PSA: 55.12000
• Density: 1.49±0.1 g/cm3 (20 °C, 760 mmHg)
• LogP: 1.44550

Purity/Quality:

99% ^*data from raw suppliers

1,5-Dimethyl-3-(trifluoromethyl)-1H-pyrazole-4-carboxylic acid 97% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 1,5-dimethyl-3-(trifluoromethyl)-1h-pyrazole-4-carboxylic acid

There total 3 articles about 1,5-dimethyl-3-(trifluoromethyl)-1h-pyrazole-4-carboxylic acid which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 90.0%

tert-butyl 1,5-dimethyl-3-(trifluoromethyl)-1H-pyrazole-4-carboxylate → 1,5-dimethyl-3-(trifluoromethyl)-1H-pyrazole-4-carboxylic acid (926913-64-6)

Guidance literature:

With trifluoroacetic acid; In dichloromethane; at 20 ℃; for 12h;

DOI:10.1002/ejoc.201403295

Reference yield:

tert-butyl 3-(methylamino)-2-(2,2,2-trifluoroacetyl)but-2-enoate → 1,5-dimethyl-3-(trifluoromethyl)-1H-pyrazole-4-carboxylic acid (926913-64-6)

Guidance literature:

Multi-step reaction with 2 steps

1: methanol / -20 - 20 °C

2: trifluoroacetic acid / dichloromethane / 12 h / 20 °C

With trifluoroacetic acid; In methanol; dichloromethane;

DOI:10.1002/ejoc.201403295

Reference yield:

→ 1,5-dimethyl-3-(trifluoromethyl)-1H-pyrazole-4-carboxylic acid (926913-64-6)

Guidance literature: