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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1940040Generated: November 1, 2026

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

https://huagongshe.com/reaction/1940040

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 numberUS05698523
Source datasetuspto-grants-1997_12
ORD IDord-2cdc6e492c114b8ab6017287690f384f
Source noteuspto-grants-1997_12