(±)-ethyl 5-(4-bromo-2-chlorophenyl)-1-(tetrahydrofuran-3-yl)-1H-pyrazole-4-carboxylate

Base Information

Chemical Name:(±)-ethyl 5-(4-bromo-2-chlorophenyl)-1-(tetrahydrofuran-3-yl)-1H-pyrazole-4-carboxylate
CAS No.:1429510-28-0
Molecular Formula:C₁₆H₁₆BrClN₂O₃
Molecular Weight:399.672
Hs Code.:

Synonyms:(±)-ethyl 5-(4-bromo-2-chlorophenyl)-1-(tetrahydrofuran-3-yl)-1H-pyrazole-4-carboxylate

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Chemical Property of (±)-ethyl 5-(4-bromo-2-chlorophenyl)-1-(tetrahydrofuran-3-yl)-1H-pyrazole-4-carboxylate

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Technology Process of (±)-ethyl 5-(4-bromo-2-chlorophenyl)-1-(tetrahydrofuran-3-yl)-1H-pyrazole-4-carboxylate

There total 2 articles about (±)-ethyl 5-(4-bromo-2-chlorophenyl)-1-(tetrahydrofuran-3-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:

: 158001-24-2
(±)-(tetrahydrofuran-3-yl)hydrazine hydrochloride

: 563-83-7
ISOPROPYLAMIDE

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

: 131994-22-4
ethyl 3-(4-bromo-2-chlorophenyl)-3-oxo-propionate

: 1429510-28-0
(±)-ethyl 5-(4-bromo-2-chlorophenyl)-1-(tetrahydrofuran-3-yl)-1H-pyrazole-4-carboxylate

Guidance literature:: ISOPROPYLAMIDE; N,N-dimethyl-formamide; ethyl 3-(4-bromo-2-chlorophenyl)-3-oxo-propionate; at 10 - 35 ℃; for 1.5h;

(±)-(tetrahydrofuran-3-yl)hydrazine hydrochloride; In ethanol; for 2h; Reflux;

Reference yield:

: 59748-90-2
4-Bromo-2-chloro-benzoic Acid

: 1429510-28-0
(±)-ethyl 5-(4-bromo-2-chlorophenyl)-1-(tetrahydrofuran-3-yl)-1H-pyrazole-4-carboxylate

Guidance literature:: Multi-step reaction with 2 steps

1.1: 1,1'-carbonyldiimidazole / dichloromethane / 4 h / 10 - 35 °C

1.2: 28 h / 0 - 50 °C / Inert atmosphere

1.3: 1 h / 0 - 35 °C

2.1: 1.5 h / 10 - 35 °C

2.2: 2 h / Reflux

With 1,1'-carbonyldiimidazole; In dichloromethane;

Reference yield:

: 1429510-28-0
(±)-ethyl 5-(4-bromo-2-chlorophenyl)-1-(tetrahydrofuran-3-yl)-1H-pyrazole-4-carboxylate

: 1429510-29-1
(±)-5-(4-bromo-2-chlorophenyl)-1-(tetrahydrofuran-3-yl)-1H-pyrazole-4-carboxylic acid

Guidance literature:: (±)-ethyl 5-(4-bromo-2-chlorophenyl)-1-(tetrahydrofuran-3-yl)-1H-pyrazole-4-carboxylate; With water; sodium hydroxide; In ethanol; at 60 ℃; for 3h;

With hydrogenchloride; In water;