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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2208102Generated: November 2, 2026

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

https://huagongshe.com/reaction/2208102

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant5-(2-chloro-phenyl)-1-[4-(1-BOC-1,2,3,6-tetrahydropyridin-4-yl)-phenyl]-3-[di-(trifluoromethyl)-hydroxy-methyl]-4,5-dihydro-1H-pyrazoleHCID 118431671—
SolventEthyl AcetateHCID 8857—
Product5-(2-chloro-phenyl)-1-[4-(1,2,3,6-tetrahydropyridin-4-yl)-phenyl]-3-[di-(trifluoromethyl)-hydroxy-methyl]-4,5-dihydro-1H-pyrazole hydrochlorideHCID 118432025205.6%

Reaction Steps

5-(2-Chloro-phenyl)-1-[4-(1-BOC-1,2,3,6-tetrahydropyridin-4-yl)-phenyl]-3-[di-(trifluoromethyl)-hydroxy-methyl]-4,5-dihydro-1H-pyrazole (435.0 mg, 0.72 mmol) prepared in Example 423 was added to a saturated solution of hydrochloric acid in ethyl acetate (2.0 mL). 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-f1f592908c3e4b92885a69cc57b2a8b4
Source noteuspto-grants-2016_06