4,5-dihydro-3-(4-fluorophenyl)-N-(4-trifluoromethylphenyl)-4-(5-trifluoromethyl-2-pyridyl)-1H-pyrazole-1-carboxamide

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Chemical Name:4,5-dihydro-3-(4-fluorophenyl)-N-(4-trifluoromethylphenyl)-4-(5-trifluoromethyl-2-pyridyl)-1H-pyrazole-1-carboxamide
CAS No.:145833-95-0
Molecular Formula:C₂₃H₁₅F₇N₄O
Molecular Weight:496.387
Hs Code.:

Synonyms:4,5-dihydro-3-(4-fluorophenyl)-N-(4-trifluoromethylphenyl)-4-(5-trifluoromethyl-2-pyridyl)-1H-pyrazole-1-carboxamide

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Chemical Property of 4,5-dihydro-3-(4-fluorophenyl)-N-(4-trifluoromethylphenyl)-4-(5-trifluoromethyl-2-pyridyl)-1H-pyrazole-1-carboxamide

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Technology Process of 4,5-dihydro-3-(4-fluorophenyl)-N-(4-trifluoromethylphenyl)-4-(5-trifluoromethyl-2-pyridyl)-1H-pyrazole-1-carboxamide

There total 4 articles about 4,5-dihydro-3-(4-fluorophenyl)-N-(4-trifluoromethylphenyl)-4-(5-trifluoromethyl-2-pyridyl)-1H-pyrazole-1-carboxamide 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: 78.4%

: 145834-67-9
1-(4-fluorophenyl)-2-[5-(trifluoromethyl)-2-pyridyl]ethanone

: 51-80-9
bis-(dimethylamino)methane

: 1548-13-6
p-trifluoromethyl-phenylisocyanate

: 145833-95-0
4,5-dihydro-3-(4-fluorophenyl)-N-(4-trifluoromethylphenyl)-4-(5-trifluoromethyl-2-pyridyl)-1H-pyrazole-1-carboxamide

Guidance literature:: 1-(4-fluorophenyl)-2-[5-(trifluoromethyl)-2-pyridyl]ethanone; bis-(dimethylamino)methane; In dichloromethane; trifluoroacetic acid; at -4 - 0 ℃; for 0.166667h; Inert atmosphere;

With hydrazine; In dichloromethane; trifluoroacetic acid; at 0 - 20 ℃; for 16.5h; Inert atmosphere;

p-trifluoromethyl-phenylisocyanate; In dichloromethane; at 30 ℃; for 1.5h; Inert atmosphere;
DOI:10.1021/op025619v

Reference yield:

: 403-42-9
1-(4-fluorophenyl)ethanone

: 145833-95-0
4,5-dihydro-3-(4-fluorophenyl)-N-(4-trifluoromethylphenyl)-4-(5-trifluoromethyl-2-pyridyl)-1H-pyrazole-1-carboxamide

Guidance literature:: Multi-step reaction with 2 steps

1.1: sodium hydride / tetrahydrofuran / 12 h / 55 °C / Reflux; Inert atmosphere

2.1: dichloromethane; trifluoroacetic acid / 0.17 h / -4 - 0 °C / Inert atmosphere

2.2: 16.5 h / 0 - 20 °C / Inert atmosphere

2.3: 1.5 h / 30 °C / Inert atmosphere

With sodium hydride; In tetrahydrofuran; dichloromethane; trifluoroacetic acid;
DOI:10.1021/op025619v

Reference yield:

: 52334-81-3
2-chloro-5-trifluoromethylpyridine

: 145833-95-0
4,5-dihydro-3-(4-fluorophenyl)-N-(4-trifluoromethylphenyl)-4-(5-trifluoromethyl-2-pyridyl)-1H-pyrazole-1-carboxamide

Guidance literature:: Multi-step reaction with 2 steps

1.1: sodium hydride / tetrahydrofuran / 12 h / 55 °C / Reflux; Inert atmosphere

2.1: dichloromethane; trifluoroacetic acid / 0.17 h / -4 - 0 °C / Inert atmosphere

2.2: 16.5 h / 0 - 20 °C / Inert atmosphere

2.3: 1.5 h / 30 °C / Inert atmosphere

With sodium hydride; In tetrahydrofuran; dichloromethane; trifluoroacetic acid;
DOI:10.1021/op025619v