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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 876707Generated: October 30, 2026

Hydrochloric Acid → 2-[5-(2,2-Dimethylpropoxy)pyridin-2-yl]-4-(1H-imidazol-1-yl)-1,2-dihydro-3H-pyrazol-3-one hydrochloride

https://huagongshe.com/reaction/876707

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant2-[5-(2,2-Dimethylpropoxy)pyridin-2-yl]-4-(1H-imidazol-1-yl)-1,2-dihydro-3H-pyrazol-3-oneHCID 59603695—
Solvent1,4-DioxaneHCID 31275—
Product2-[5-(2,2-Dimethylpropoxy)pyridin-2-yl]-4-(1H-imidazol-1-yl)-1,2-dihydro-3H-pyrazol-3-one hydrochlorideHCID 67455029—

Reaction Steps

5 ml of a 4 N solution of hydrogen chloride in dioxane are added to 200 mg (0.638 mmol) of the compound from Example 92 and the mixture is stirred at RT for 30 min. The solid is subsequently filtered off, washed once with dioxane and twice with tert-butyl methyl ether and subsequently dried under a high vacuum.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08987261B2
Source datasetuspto-grants-2015_03
ORD IDord-999025f1873d4fa09ebf5d8b76c1aa43
Source noteuspto-grants-2015_03