5-(5-bromothiophen-2-yl)-1-(2,4-dichlorophenyl)-4-ethyl-1H-pyrazole-3-carboxylic acid ethyl ester

Base Information

Chemical Name:5-(5-bromothiophen-2-yl)-1-(2,4-dichlorophenyl)-4-ethyl-1H-pyrazole-3-carboxylic acid ethyl ester
CAS No.:937177-39-4
Molecular Formula:C₁₈H₁₅BrCl₂N₂O₂S
Molecular Weight:474.205
Hs Code.:

Synonyms:5-(5-bromothiophen-2-yl)-1-(2,4-dichlorophenyl)-4-ethyl-1H-pyrazole-3-carboxylic acid ethyl ester

Suppliers and Price of 5-(5-bromothiophen-2-yl)-1-(2,4-dichlorophenyl)-4-ethyl-1H-pyrazole-3-carboxylic acid ethyl ester

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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 5-(5-bromothiophen-2-yl)-1-(2,4-dichlorophenyl)-4-ethyl-1H-pyrazole-3-carboxylic acid ethyl ester

Chemical Property:

Purity/Quality:: 98% ^*data from raw suppliers

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Technology Process of 5-(5-bromothiophen-2-yl)-1-(2,4-dichlorophenyl)-4-ethyl-1H-pyrazole-3-carboxylic acid ethyl ester

There total 2 articles about 5-(5-bromothiophen-2-yl)-1-(2,4-dichlorophenyl)-4-ethyl-1H-pyrazole-3-carboxylic acid ethyl ester 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: 16.9%

: 937177-38-3
3-(5-bromothiophene-2-carbonyl)-2-oxopentanoic acid ethyl ester

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

: 937177-39-4
5-(5-bromothiophen-2-yl)-1-(2,4-dichlorophenyl)-4-ethyl-1H-pyrazole-3-carboxylic acid ethyl ester

Guidance literature:: With potassium carbonate; In ethanol; at 20 ℃;

Reference yield:

: 1160842-73-8
ethyl 4-(bromomethyl)-5-(5-bromothiophene-2-yl)-1-(2,4-dichlorophenyl)-1H-pyrazole-3-carboxylate

: 917-54-4
methyllithium

: 937177-39-4
5-(5-bromothiophen-2-yl)-1-(2,4-dichlorophenyl)-4-ethyl-1H-pyrazole-3-carboxylic acid ethyl ester

Guidance literature:: With copper(I) bromide; In diethyl ether; at -78 ℃; for 2h;
DOI:10.1016/j.bmcl.2009.03.046

Reference yield: 96.0%

: 937177-39-4
5-(5-bromothiophen-2-yl)-1-(2,4-dichlorophenyl)-4-ethyl-1H-pyrazole-3-carboxylic acid ethyl ester

: 869892-31-9
5-(5-Bromo-thiophen-2-yl)-1-(2,4-dichloro-phenyl)-4-ethyl-1H-pyrazol-3-carboxylic acid

Guidance literature:: 5-(5-bromothiophen-2-yl)-1-(2,4-dichlorophenyl)-4-ethyl-1H-pyrazole-3-carboxylic acid ethyl ester; With lithium hydroxide; ethanol; In tetrahydrofuran; at 20 ℃; for 24h;

With hydrogenchloride; ethanol; water; In tetrahydrofuran;