ethyl 5-(4-bromo-2-fluorophenyl)-1-(tetrahydro-2H-pyran-4-yl)-1H-pyrazole-4-carboxylate

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Chemical Name:ethyl 5-(4-bromo-2-fluorophenyl)-1-(tetrahydro-2H-pyran-4-yl)-1H-pyrazole-4-carboxylate
CAS No.:1429510-21-3
Molecular Formula:C₁₇H₁₈BrFN₂O₃
Molecular Weight:397.244
Hs Code.:

Synonyms:ethyl 5-(4-bromo-2-fluorophenyl)-1-(tetrahydro-2H-pyran-4-yl)-1H-pyrazole-4-carboxylate

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Chemical Property of ethyl 5-(4-bromo-2-fluorophenyl)-1-(tetrahydro-2H-pyran-4-yl)-1H-pyrazole-4-carboxylate

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Technology Process of ethyl 5-(4-bromo-2-fluorophenyl)-1-(tetrahydro-2H-pyran-4-yl)-1H-pyrazole-4-carboxylate

There total 4 articles about ethyl 5-(4-bromo-2-fluorophenyl)-1-(tetrahydro-2H-pyran-4-yl)-1H-pyrazole-4-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: 84.0%

: 1-(tetrahydro-2H-pyran-4-yl)hydrazine hydrochloride

: ethyl (E)-2-(4-bromo-2-fluorobenzoyl)-3-(dimethylamino)prop-2-enoate

: 1429510-21-3
ethyl 5-(4-bromo-2-fluorophenyl)-1-(tetrahydro-2H-pyran-4-yl)-1H-pyrazole-4-carboxylate

Guidance literature:: With triethylamine; In ethanol; at 0 - 40 ℃; for 19h;

Reference yield:

: 1-(tetrahydro-2H-pyran-4-yl)hydrazine hydrochloride

: 563-83-7
ISOPROPYLAMIDE

: 112704-80-0
ethyl 3-(4-bromo-2-fluorophenyl)-3-oxopropanoate

: 68-12-2,33513-42-7
N,N-dimethyl-formamide

: 1429510-21-3
ethyl 5-(4-bromo-2-fluorophenyl)-1-(tetrahydro-2H-pyran-4-yl)-1H-pyrazole-4-carboxylate

Guidance literature:: ISOPROPYLAMIDE; ethyl 3-(4-bromo-2-fluorophenyl)-3-oxopropanoate; N,N-dimethyl-formamide; at 10 - 35 ℃; for 4h;

1-(tetrahydro-2H-pyran-4-yl)hydrazine hydrochloride; In ethanol; at 10 - 35 ℃; Reflux;

Reference yield:

: 112704-79-7
2-fluoro-4-bromobenzoic acid

: 1429510-21-3
ethyl 5-(4-bromo-2-fluorophenyl)-1-(tetrahydro-2H-pyran-4-yl)-1H-pyrazole-4-carboxylate

Guidance literature:: Multi-step reaction with 2 steps

1.1: 1,1'-carbonyldiimidazole / dichloromethane / 3.5 h / 10 - 35 °C

1.2: 10 - 35 °C

1.3: 1 h / 10 - 35 °C / Cooling with ice

2.1: 4 h / 10 - 35 °C

2.2: 10 - 35 °C / Reflux

With 1,1'-carbonyldiimidazole; In dichloromethane;