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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1740773Generated: October 31, 2026

Thionyl Chloride → 5-Chlorocarbonyl-pyridine-2-carboxylic acid methyl ester

https://huagongshe.com/reaction/1740773

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
Reactant2,5-Pyridinedicarboxylic acid, 2-methyl esterHCID 42556131—
Product5-Chlorocarbonyl-pyridine-2-carboxylic acid methyl esterHCID 15121177—

Reaction Steps

In step a, the carboxylic acid functionality of the appropriate 2,5-pyridinedicarboxylic acid, 2-methyl ester 10 (Nippon Kagaku Zasshi, 1967, 88, 563) is converted to its acid chloride using techniques and procedures well known and appreciated by one of ordinary skill in the art, such as thionyl chloride, to give the corresponding 6-carbomethoxynicotinoyl chloride 11.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05972897
Source datasetuspto-grants-1999_10
ORD IDord-98d03e2207c04653a3a4b3326337845a
Source noteuspto-grants-1999_10