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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1748447Generated: October 30, 2026

ethyl 1-(4-bromophenyl)-5-methyl-1H-pyrazole-4-carboxylate → 1-(5-Cyclopropyl-6-methylpyridin-2-yl)-5-methyl-1H-pyrazole-4-carboxylic acid

https://huagongshe.com/reaction/1748447

Reaction equation

Participants

RoleNameHCIDCharge
Reactantethyl 1-(4-bromophenyl)-5-methyl-1H-pyrazole-4-carboxylateHCID 3470813—
Reactant1-(5-Iodo-6-methylpyridin-2-yl)-5-methyl-1H-pyrazole-4-carboxylic acid ethyl esterHCID 86692414—
Product1-(5-Cyclopropyl-6-methylpyridin-2-yl)-5-methyl-1H-pyrazole-4-carboxylic acidHCID 86692418—

Reaction Steps

1-(5-Iodo-6-methylpyridin-2-yl)-5-methyl-1H-pyrazole-4-carboxylic acid ethyl ester described in Reference Example 31 was used in place of 1-(4-bromophenyl)-5-methyl-1H-pyrazole-4-carboxylic acid ethyl ester in Reference Example 26(2), and reacted and treated in a similar manner to give the titled compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09150555B2
Source datasetuspto-grants-2015_10
ORD IDord-5464d94592634620bfdb02fb5cac3223
Source noteuspto-grants-2015_10