5-cyclopentylsulfanyl-1-(4-methoxycarbonylphenyl)pyrazole-4-carboxylic acid

Base Information

Chemical Name:5-cyclopentylsulfanyl-1-(4-methoxycarbonylphenyl)pyrazole-4-carboxylic acid
CAS No.:1048669-84-6
Molecular Formula:C₁₇H₁₈N₂O₄S
Molecular Weight:346.407
Hs Code.:

Synonyms:5-cyclopentylsulfanyl-1-(4-methoxycarbonylphenyl)pyrazole-4-carboxylic acid

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Chemical Property of 5-cyclopentylsulfanyl-1-(4-methoxycarbonylphenyl)pyrazole-4-carboxylic acid

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Technology Process of 5-cyclopentylsulfanyl-1-(4-methoxycarbonylphenyl)pyrazole-4-carboxylic acid

There total 3 articles about 5-cyclopentylsulfanyl-1-(4-methoxycarbonylphenyl)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: 99.0%

: 1048669-85-7
tert-butyl 5-cyclopentylsulfanyl-1-(4-methoxycarbonylphenyl)pyrazole-4-carboxylate

: 1048669-84-6
5-cyclopentylsulfanyl-1-(4-methoxycarbonylphenyl)pyrazole-4-carboxylic acid

Guidance literature:: With trifluoroacetic acid; In dichloromethane; at 20 ℃; for 24h;

Reference yield:

: 1048669-27-7
tert-butyl 5-amino-1-(4-methoxycarbonylphenyl)pyrazole-4-carboxylate

: 1048669-84-6
5-cyclopentylsulfanyl-1-(4-methoxycarbonylphenyl)pyrazole-4-carboxylic acid

Guidance literature:: Multi-step reaction with 3 steps

1.1: tert.-butylnitrite; copper dichloride / acetonitrile / 0.25 h / 65 °C

2.1: sodium hexamethyldisilazane / N,N-dimethyl-formamide / 0.5 h / 20 °C / Inert atmosphere

2.2: 5 h / 20 °C / Inert atmosphere

3.1: trifluoroacetic acid / dichloromethane / 3 h / 20 °C

With tert.-butylnitrite; sodium hexamethyldisilazane; trifluoroacetic acid; copper dichloride; In dichloromethane; N,N-dimethyl-formamide; acetonitrile;
DOI:10.1021/jm301252n

Reference yield:

: 1048669-25-5
tert-butyl 5-chloro-1-(4-methoxycarbonylphenyl)pyrazole-4-carboxylate

: 1048669-84-6
5-cyclopentylsulfanyl-1-(4-methoxycarbonylphenyl)pyrazole-4-carboxylic acid

Guidance literature:: Multi-step reaction with 2 steps

1.1: sodium hexamethyldisilazane / N,N-dimethyl-formamide / 0.5 h / 20 °C / Inert atmosphere

1.2: 5 h / 20 °C / Inert atmosphere

2.1: trifluoroacetic acid / dichloromethane / 3 h / 20 °C

With sodium hexamethyldisilazane; trifluoroacetic acid; In dichloromethane; N,N-dimethyl-formamide;
DOI:10.1021/jm301252n