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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1162460Generated: October 29, 2026

Pyridine → HCID 673877, compound

https://huagongshe.com/reaction/1162460

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
Reactant4-Toluenesulfonyl chlorideHCID 7397—
Reactant2-Amino-5-bromopyridineHCID 70622—
SolventWaterHCID 962—
ProductHCID 673877HCID 67387798%

Reaction Conditions

Temperature90 °C

Reaction Steps

To a 500 mL round-bottomed flask was added 2-amino-5-bromopyridine (15.0 g, 86.7 mmol, Aldrich, St. Louis, Mo.), pyridine (150 mL, 1858 mmol) and finally para-toluenesulfonyl chloride (24.8 g, 130 mmol, Aldrich, St. Louis, Mo.) at rt. The mixture was stirred at 90° C. After 24 h, the mixture was allowed to cool to rt and then poured into water (600 mL). A precipitate formed and the mixture was stirred for 15 min and then filtered. The filtercake was washed with water and hexane and then dried under vacuum to afford the title compound as an off-white solid (27.8 g, 98%) that was carried on without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07820665B2
Source datasetuspto-grants-2010_10
ORD IDord-9f61bec200b041b68a809b39c79a01eb
Source noteuspto-grants-2010_10