4-AMino-3-Methyl-pyrazole-1-carboxylic acid tert-butyl ester

Base Information

• Chemical Name: 4-AMino-3-Methyl-pyrazole-1-carboxylic acid tert-butyl ester
• CAS No.: 847139-23-5
• Molecular Formula: C₉H₁₅N₃O₂
• Molecular Weight: 197.237
• Hs Code.: 2933199090
• Mol file: 847139-23-5.mol

Synonyms:QC-8508;tert-butyl 4-amino-5-methyl-1H-pyrazole-1-carboxylate;tert-Butyl 4-amino-3-methyl-1H-pyrazole-1-carboxylate;

Chemical Property of 4-AMino-3-Methyl-pyrazole-1-carboxylic acid tert-butyl ester

Chemical Property:

• PSA: 70.14000
• LogP: 2.13810

Purity/Quality:

99% ^*data from raw suppliers

tert-butyl4-amino-3-methyl-1H-pyrazole-1-carboxylate ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 4-AMino-3-Methyl-pyrazole-1-carboxylic acid tert-butyl ester

There total 2 articles about 4-AMino-3-Methyl-pyrazole-1-carboxylic acid tert-butyl ester 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: 95.0%

tert-butyl 3-methyl-4-nitro-1H-pyrazole-1-carboxylate (847139-22-4) → tert-butyl 4-amino-3-methyl-1H-pyrazole-1-carboxylate (847139-23-5)

Guidance literature:

With palladium 10% on activated carbon; hydrogen; In ethanol; water; at 20 ℃; for 16h; Further stages;

Reference yield:

di-tert-butyl dicarbonate (24424-99-5) → tert-butyl 4-amino-3-methyl-1H-pyrazole-1-carboxylate (847139-23-5)

Guidance literature:

Multi-step reaction with 2 steps

1: dmap / dichloromethane / 16 h / 20 °C

2: hydrogen; palladium 10% on activated carbon / water; ethanol / 16 h / 20 °C

With dmap; palladium 10% on activated carbon; hydrogen; In ethanol; dichloromethane; water;

upstream raw materials:

tert-butyl 3-methyl-4-nitro-1H-pyrazole-1-carboxylate

di-tert-butyl dicarbonate

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