Ethyl 1-(2,4-dichlorophenyl)-4-methyl-5-oxo-4,5-dihydro-1H-pyrazole-3-carboxylate

Base Information

Chemical Name:Ethyl 1-(2,4-dichlorophenyl)-4-methyl-5-oxo-4,5-dihydro-1H-pyrazole-3-carboxylate
CAS No.:869192-35-8
Molecular Formula:C₁₃H₁₂Cl₂N₂O₃
Molecular Weight:315.156
Hs Code.:

Synonyms:Ethyl 1-(2,4-dichlorophenyl)-4-methyl-5-oxo-4,5-dihydro-1H-pyrazole-3-carboxylate

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Business phase:: The product has achieved commercial mass production^*data from LookChem market partment

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Chemical Property of Ethyl 1-(2,4-dichlorophenyl)-4-methyl-5-oxo-4,5-dihydro-1H-pyrazole-3-carboxylate

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Technology Process of Ethyl 1-(2,4-dichlorophenyl)-4-methyl-5-oxo-4,5-dihydro-1H-pyrazole-3-carboxylate

There total 1 articles about Ethyl 1-(2,4-dichlorophenyl)-4-methyl-5-oxo-4,5-dihydro-1H-pyrazole-3-carboxylate 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:

: 759-65-9
diethyl oxalpropionate

: 5446-18-4
2,4-dichlorophenyl hydrazine hydrochloride

: 869192-35-8
Ethyl 1-(2,4-dichlorophenyl)-4-methyl-5-oxo-4,5-dihydro-1H-pyrazole-3-carboxylate

Guidance literature:: With trifluoroacetic acid; In toluene; at 55 ℃; for 4.5h;

Reference yield:

: 869192-35-8
Ethyl 1-(2,4-dichlorophenyl)-4-methyl-5-oxo-4,5-dihydro-1H-pyrazole-3-carboxylate

: 358-23-6
trifluoromethylsulfonic anhydride

: 869192-36-9
Ethyl 1-(2,4-dichlorophenyl)-4-methyl-5-(((trifluoromethyl)sulphonyl)oxy)-1H-pyrazole-3-carboxylate

Guidance literature:: With triethylamine; In dichloromethane; at 0 ℃; for 0.25h;

Reference yield:

: 869192-35-8
Ethyl 1-(2,4-dichlorophenyl)-4-methyl-5-oxo-4,5-dihydro-1H-pyrazole-3-carboxylate

: 1245626-05-4
AM 6545

Guidance literature:: Multi-step reaction with 5 steps

1: triethylamine / dichloromethane / 0.25 h / 0 °C / Inert atmosphere

2: tetrakis(triphenylphosphine) palladium⁽⁰⁾; sodium carbonate / ethyl acetate; water / 6 h / 65 °C / Inert atmosphere

3: diisopropylamine; copper(l) iodide; tetrakis(triphenylphosphine) palladium⁽⁰⁾ / ethyl acetate / 3 h / Inert atmosphere; Reflux

4: hydrazine hydrate / ethanol / 3 h / Reflux

5: isopropyl alcohol / 20 °C

With copper(l) iodide; tetrakis(triphenylphosphine) palladium⁽⁰⁾; sodium carbonate; hydrazine hydrate; triethylamine; diisopropylamine; In ethanol; dichloromethane; water; ethyl acetate; isopropyl alcohol;