1H-Pyrazole-4-carboxylic acid, 1-(1,1-dimethylethyl)-5-methyl-

Base Information

• Chemical Name: 1H-Pyrazole-4-carboxylic acid, 1-(1,1-dimethylethyl)-5-methyl-
• CAS No.: 288251-51-4
• Molecular Formula: C₉H₁₄N₂O₂
• Molecular Weight: 182.222
• Hs Code.: 2933199090
• Mol file: 288251-51-4.mol

Synonyms:1-tert-butyl-5-methyl-1H-pyrazole-4-carboxylic acid;tertbutylmethylpyrazolecarboxylicacid;

Chemical Property of 1H-Pyrazole-4-carboxylic acid, 1-(1,1-dimethylethyl)-5-methyl-

Chemical Property:

• PSA: 55.12000
• LogP: 1.64470
• Storage Temp.: 2-8°C

Purity/Quality:

97% ^*data from raw suppliers

1-(tert-butyl)-5-methyl-1h-pyrazole-4-carboxylicacid ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 1H-Pyrazole-4-carboxylic acid, 1-(1,1-dimethylethyl)-5-methyl-

There total 3 articles about 1H-Pyrazole-4-carboxylic acid, 1-(1,1-dimethylethyl)-5-methyl- 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: 87.0%

1-(1,1-dimethylethyl)-5-methyl-1H-pyrazole-4-carboxylic acid (98477-08-8) → 1-(tert-butyl)-5-methyl-1H-pyrazole-4-carboxylic acid (288251-51-4)

Guidance literature:

1-(1,1-dimethylethyl)-5-methyl-1H-pyrazole-4-carboxylic acid; With lithium hydroxide; water; In 1,4-dioxane; ethanol; at 20 - 40 ℃;

With hydrogenchloride; In 1,4-dioxane; ethanol; water; pH=~ 4;

Reference yield: 78.0%

1-tert-butyl-5-methyl-1H-pyrazole-4-carboxylic acid methyl ester (950858-97-6) → 1-(tert-butyl)-5-methyl-1H-pyrazole-4-carboxylic acid (288251-51-4)

Guidance literature:

1-tert-butyl-5-methyl-1H-pyrazole-4-carboxylic acid methyl ester; With sodium hydroxide; water; In methanol; at 0 - 25 ℃;

With hydrogenchloride; In water; pH=1;

Reference yield: 40.0%

→ 1-(tert-butyl)-5-methyl-1H-pyrazole-4-carboxylic acid (288251-51-4)

Guidance literature:

In ethanol; at 65 ℃; for 4h;

upstream raw materials:

1-tert-butyl-5-methyl-1H-pyrazole-4-carboxylic acid methyl ester

1-(1,1-dimethylethyl)-5-methyl-1H-pyrazole-4-carboxylic acid

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