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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1708027Generated: October 31, 2026

2-(4-Fluorophenyl)-3-(pyridin-4-yl)4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine dihydrochloride → 2-(4-Fluorophenyl)-3-(pyridin-4-yl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine hydrochloride

https://huagongshe.com/reaction/1708027

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-(4-Fluorophenyl)-3-(pyridin-4-yl)4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine dihydrochlorideHCID 136378415—
SolventIsopropanolHCID 3776—
Product2-(4-Fluorophenyl)-3-(pyridin-4-yl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine hydrochlorideHCID 13637841849.7%

Reaction Steps

2-(4-Fluorophenyl)-3-(pyridin-4-yl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine dihydrochloride (183 mg) was dissolved in hot aqueous isopropyl alcohol solution (5.5 ml). The solution was cooled and the separated solid was collected, washed with isopropyl alcohol and dried to give 2-(4-fluorophenyl)-3-(pyridin-4-yl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine hydrochloride (82 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05356897
Source datasetuspto-grants-1994_10
ORD IDord-27b4b01e83ae409198a05e10d2595612
Source noteuspto-grants-1994_10