Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2208048Generated: October 31, 2026

Trifluoroacetic acid → 1-(2-chloro-phenyl)-5-[3-(1,2,3,6-tetrahydropyridin-4-yl)-phenyl]-3-[di-(trifluoromethyl)-hydroxy-methyl]-4,5-dihydro-1H-pyrazole trifluoroacetate

https://huagongshe.com/reaction/2208048

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactant1-(2-chloro-phenyl)-5-[3-(1-BOC-1,2,3,6-tetrahydropyridin-4-yl)-phenyl]-3-[di-(trifluoromethyl)-hydroxy-methyl]-4,5-dihydro-1H-pyrazoleHCID 118431730—
SolventDichloromethaneHCID 6344—
Product1-(2-chloro-phenyl)-5-[3-(1,2,3,6-tetrahydropyridin-4-yl)-phenyl]-3-[di-(trifluoromethyl)-hydroxy-methyl]-4,5-dihydro-1H-pyrazole trifluoroacetateHCID 118431903111.6%

Reaction Steps

1-(2-Chloro-phenyl)-5-[3-(1-BOC-1,2,3,6-tetrahydropyridin-4-yl)-phenyl]-3-[di-(trifluoromethyl)-hydroxy-methyl]-4,5-dihydro-1H-pyrazole (350.0 mg, 0.58 mmol) prepared in Example 229 and trifluoroacetic acid (444.0 uL, 5.79 mmol) were slowly added to dichloromethane (5.8 mL) at 0° C. The reaction mixture was stirred at room temperature for 2 hours and then concentrated under reduced pressure to give 400.0 mg of the titled compound as a yellow liquid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09376420B2
Source datasetuspto-grants-2016_06
ORD IDord-f4066000a828484a8e55bf3c4c0224d1
Source noteuspto-grants-2016_06