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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2283371Generated: October 30, 2026

Pyridine → HCID 57751055, compound

https://huagongshe.com/reaction/2283371

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
Reactant2-Amino-4-chlorobenzenesulphonamideHCID 77790—
ReactantHCID 57750904HCID 57750904—
SolventDichloromethaneHCID 6344—
ProductHCID 57751055HCID 57751055100.1%

Reaction Steps

2-Amino-4-chlorobenzenesulfonamide (200 mg, 0.97 mmol) and (E)-2-(4-(difluoromethoxy)phenyl)ethenesulfonyl chloride (260 mg, 0.97 mmol) were dissolved in anhydrous dichloromethane (5 mL) and flushed with argon. Anhydrous pyridine (0.391 mL, 4.84 mmol) was added and the reaction was stirred at room temperature under an inert atmosphere over night. The reaction was quenched using 2 M hydrochloric acid (20 mL) and extracted with dichloromethane. The combined organic phase was washed with water, dried over magnesium sulfate and concentrated under vacuum to give 426 mg (100% yield) of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09145380B2
Source datasetuspto-grants-2015_09
ORD IDord-5828aed7bf2849a6b31e0464114cd89c
Source noteuspto-grants-2015_09