4-Bromo-5-methyl-1H-pyrazole-3-carboxamide

Base Information

• Chemical Name: 4-Bromo-5-methyl-1H-pyrazole-3-carboxamide
• CAS No.: 32258-58-5
• Molecular Formula: C5H6BrN3O
• Molecular Weight: 204.02
• Hs Code.: 2933199090
• Mol file: 32258-58-5.mol

Synonyms:4-Bromo-5-methyl-1H-pyrazole-3-carboxamide;1H-Pyrazole-3-carboxamide, 4-bromo-5-methyl-

Chemical Property of 4-Bromo-5-methyl-1H-pyrazole-3-carboxamide

Chemical Property:

• Melting Point: 264 °C (decomp)
• Boiling Point: 350.6±42.0 °C(Predicted)
• PKA: 11.03±0.50(Predicted)
• PSA: 71.77000
• Density: 1.819±0.06 g/cm3(Predicted)
• LogP: 1.27980

Purity/Quality:

97% ^*data from raw suppliers

4-Bromo-5-methyl-1H-pyrazole-3-carboxamide ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 4-Bromo-5-methyl-1H-pyrazole-3-carboxamide

There total 4 articles about 4-Bromo-5-methyl-1H-pyrazole-3-carboxamide 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:

5-methyl-1H-pyrazole-3-carboxylic acid amide (4027-56-9) → 4-bromo-5-methyl-1H-pyrazole-3-carboxamide (32258-58-5)

Guidance literature:

With potassium hydroxide; water; bromine;

Reference yield:

3,8-dibromo-2,7-dimethyl-4H,9H-dipyrazolo<5,1-a,5',1'-d>pyrazine-4,9-dione (101708-06-9) → 4-bromo-5-methyl-1H-pyrazole-3-carboxamide (32258-58-5)

Guidance literature:

With ammonia; water;

Reference yield:

5-methyl-1H-pyrazole-3-carboxylic acid (402-61-9) → 4-bromo-5-methyl-1H-pyrazole-3-carboxamide (32258-58-5)

Guidance literature:

Multi-step reaction with 3 steps

1: acetic acid; bromine

2: SOCl₂

3: water; NH₃

With thionyl chloride; ammonia; water; bromine; acetic acid;

upstream raw materials:

5-methyl-1H-pyrazole-3-carboxylic acid amide

3,8-dibromo-2,7-dimethyl-4H,9H-dipyrazolo<5,1-a,5',1'-d>pyrazine-4,9-dione

5-methyl-1H-pyrazole-3-carboxylic acid

4-bromo-5-methyl-1⁽²⁾H-pyrazole-3-carboxylic acid

Downstream raw materials:

4-bromo-5-methyl-1H-pyrazol-3-amine

4-bromo-5-methyl-1⁽²⁾H-pyrazole-3-carboxylic acid

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