Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 57800Generated: October 30, 2026

1-(2-Bromoethyl)-4-(trifluoromethyl)benzene → 2-Cyclopropyl-7-oxo-4-[2-(4-trifluoromethyl-phenyl)-ethyl]-4,7-dihydro-pyrazolo[1,5-a]-pyrimidine-6-carboxylic acid

https://huagongshe.com/reaction/57800

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-(2-Bromoethyl)-4-(trifluoromethyl)benzeneHCID 14949941—
Reactant2-Cyclopropyl-7-oxo-4-[2-(4-trifluoromethyl-phenyl)-ethyl]-4,7-dihydro-pyrazolo[1,5-a]pyrimidine-6-carboxylic acid ethyl esterHCID 86702941—
Product2-Cyclopropyl-7-oxo-4-[2-(4-trifluoromethyl-phenyl)-ethyl]-4,7-dihydro-pyrazolo[1,5-a]-pyrimidine-6-carboxylic acidHCID 86702940—

Reaction Steps

The expected compound was obtained according to general procedure G using 2-cyclopropyl-7-oxo-4-[2-(4-trifluoromethyl-phenyl)-ethyl]-4,7-dihydro-pyrazolo[1,5-a]pyrimidine-6-carboxylic acid ethyl ester. The starting material was obtained according to general procedure D using Key Intermediate II and 1-(2-bromo-ethyl)-4-trifluoromethyl-benzene. The expected compound was isolated as white powder.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09434745B2
Source datasetuspto-grants-2016_09
ORD IDord-8761368dafc442abb2d7d55f373f3d95
Source noteuspto-grants-2016_09