1-(4-chlorophenyl)-5-p-tolyl-1H-pyrazole-3-carboxylic acid methyl ester

Base Information

• Chemical Name: 1-(4-chlorophenyl)-5-p-tolyl-1H-pyrazole-3-carboxylic acid methyl ester
• CAS No.: 1610952-55-0
• Molecular Formula: C₁₈H₁₅ClN₂O₂
• Molecular Weight: 326.782
• Mol file: 1610952-55-0.mol

Synonyms:1-(4-chlorophenyl)-5-p-tolyl-1H-pyrazole-3-carboxylic acid methyl ester

Chemical Property of 1-(4-chlorophenyl)-5-p-tolyl-1H-pyrazole-3-carboxylic acid methyl ester

Chemical Property:

Purity/Quality:

Safty Information:

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MSDS Files:

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Technology Process of 1-(4-chlorophenyl)-5-p-tolyl-1H-pyrazole-3-carboxylic acid methyl ester

There total 3 articles about 1-(4-chlorophenyl)-5-p-tolyl-1H-pyrazole-3-carboxylic acid methyl 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: 64.0%

C12H12N2O2 + p-chlorobenzenediazonium tetrafluoroborate (673-41-6) → 1-(4-chlorophenyl)-5-p-tolyl-1H-pyrazole-3-carboxylic acid methyl ester (1610952-55-0)

Guidance literature:

With cobalt(II) acetate; In 1,2-dichloro-ethane; at 20 ℃; for 12h; Inert atmosphere;

DOI:10.1021/ol5012339

Reference yield:

para-methylacetophenone (122-00-9) → 1-(4-chlorophenyl)-5-p-tolyl-1H-pyrazole-3-carboxylic acid methyl ester (1610952-55-0)

Guidance literature:

Multi-step reaction with 2 steps

1: sodium methylate / methanol / 5 h / Reflux

2: hydrogenchloride / methanol; water / 6 h / Reflux

With hydrogenchloride; sodium methylate; In methanol; water;

DOI:10.1111/cbdd.12793

Reference yield:

2-hydroxy-4-oxo-4-p-tolyl-but-2-enoic acid methyl ester (39848-01-6,65356-47-0) + N-4-chlorophenylhydrazine (1073-69-4) → 1-(4-chlorophenyl)-5-p-tolyl-1H-pyrazole-3-carboxylic acid methyl ester (1610952-55-0)

Guidance literature:

With hydrogenchloride; In methanol; water; for 6h; Reflux;

DOI:10.1111/cbdd.12793

upstream raw materials:

p-chlorobenzenediazonium tetrafluoroborate

para-methylacetophenone

2-hydroxy-4-oxo-4-p-tolyl-but-2-enoic acid methyl ester

N-4-chlorophenylhydrazine