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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 731715Generated: November 2, 2026

Sodium Iodide → 1-(2-Isopropylpyrazolo[1,5-a]pyridin-3-yl)-2-(piperidin-1-yl)propan-1-one hydrochloride

https://huagongshe.com/reaction/731715

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium IodideHCID 5238—
ReactantPiperidineHCID 8082—
Reactant2-Chloro-1-[2-(1-methylethyl)pyrazolo[1,5-a]pyridin-3-yl]-1-propanoneHCID 21585751—
SolventMethanolHCID 887—
Product1-(2-Isopropylpyrazolo[1,5-a]pyridin-3-yl)-2-(piperidin-1-yl)propan-1-one hydrochlorideHCID 6854690326.1%

Reaction Conditions

Temperature50 °C

Reaction Steps

A mixture of 500 mg (2 mmol) of 2-chloro-1-(2-isopropylpyrazolo[1,5-a]pyridin-3-yl)propan-1-one, 478 ul (4.8 mmol) of piperidine and 50 mg of NaI in 4 ml of MeOH was stirred at 50° C. overnight. The residue obtained after evaporation of the solvent was purified on an Al2O3 column. The fractions containing purified product were titrated with 4N HCl-dioxane to obtain a precipitate. Recrystallization from isopropanol/ether produced 175 mg of 1-(2-isopropylpyrazolo[1,5-a]pyridin-3-yl)-2-(piperidin-1-yl)propan-1-one hydrochloride. Compound 1036.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07585875B2
Source datasetuspto-grants-2009_09
ORD IDord-c0635d6c67444cab97a1d7d776cda9ca
Source noteuspto-grants-2009_09