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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 361417Generated: November 1, 2026

Pyridine → HCID 21186216, compound

https://huagongshe.com/reaction/361417

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
Reactant2-Chloropyridine-3-sulfonyl chlorideHCID 10219968—
Reactant3-Methoxy-5-methyl-2-pyrazinamineHCID 10701894—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventDichloromethaneHCID 6344—
ProductHCID 21186216HCID 2118621629.9%

Reaction Steps

4-Dimethylaminopyridine (0.1 g) was added to a solution of 2-chloropyridine-3-sulphonyl chloride (1.06 g), 2-amino-3-methoxy-5-methylpyrazine (0.695 g) and pyridine (0.424 ml) in dichloromethane (5 ml) and the mixture was stirred at ambient temperature for 18 hours. The solution was then transferred to a silica gel Mega Bond Elut column. Elution with 0-40% ethyl acetate/hexane gave 2-chloro-N-(3-methoxy-5-methylpyrazin-2-yl)pyridine-3-sulphonamide (0.47 g) as an oil; 1H NMR (d6 -DMSO): 2.3 (s, 3 H), 3.9 (s, 3 H), 7.5 (s, 1 H), 7.65 (dd, 1 H), 8.45 (dd, 1 H), 8.7 (dd, 1 H); mass spectrum (+ve CI): 315 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05866568
Source datasetuspto-grants-1999_02
ORD IDord-9eef32ca463f4a5e8f14340c92999b47
Source noteuspto-grants-1999_02