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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1032378Generated: November 2, 2026

Pyridinium chloride → HCID 10358396, compound

https://huagongshe.com/reaction/1032378

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridinium chlorideHCID 10176127—
ReactantPyrazolo[1,5-a]pyridine, 3-[(4-methoxyphenyl)sulfonyl]-2-(1-methylethyl)-HCID 11724188—
SolventWaterHCID 962—
ProductHCID 10358396HCID 10358396—

Reaction Conditions

Temperature220 °C

Reaction Steps

A mixture of 0.012 mol of 2-isopropyl-3-(4-methoxybenzenesulphonyl) pyrazolo[1,5-a]pyridine and 0.054 mol of pyridine hydrochloride was heated at 220° C. for & hour. Water was then added and the mixture was distilled in the presence of ethyl acetate. The medium was dried on sodium sulphate, filtered and concentrated. The solid so obtained was then recrystallized from isopropyl ether to provide a white crystalline product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04957925
Source datasetuspto-grants-1990_09
ORD IDord-61706da8b9ce43d2bf877090d3ee22c5
Source noteuspto-grants-1990_09