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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 873525Generated: October 30, 2026

Pyridine → HCID 117700536, compound

https://huagongshe.com/reaction/873525

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
Reactant4-Toluenesulfonyl chlorideHCID 7397—
ReactantSodium BicarbonateHCID 516892—
Reactant6-Chloro-3-methylpyridine-2-carboxylic acidHCID 46941470—
SolventWaterHCID 962—
Solventtert-ButanolHCID 6386—
ProductHCID 117700536HCID 11770053693.1%

Reaction Steps

p-Toluenesulfonyl chloride (10.5 g, 55.1 mmol) was added to a solution of 6-chloro-3-methylpyridine-2-carboxylic acid (4.73 g, 27.6 mmol) as a known compound in tert-butyl alcohol (150 ml) and pyridine (21 ml) at room temperature, and the mixture thus obtained was then stirred at the same temperature as above for 24 hours. Thereafter, a solution of sodium hydrogen carbonate (11.6 g, 138 mmol) in water (300 ml) was added to the resulting solution, and the mixed solution was then stirred. Then, the solvent was distilled away from the reaction solution under reduced pressure. While being washed with water, the solid thus generated was collected by filtration, and was then dried to obtain the title compound (5.85 g, yield: 93%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08975263B2
Source datasetuspto-grants-2015_03
ORD IDord-60ce5031baf647128b0b1e1c454c7e81
Source noteuspto-grants-2015_03