Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 392397Generated: October 29, 2026

Pyridine → HCID 23521679, compound

https://huagongshe.com/reaction/392397

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantEthanesulfonyl chlorideHCID 11667—
ReactantHCID 69880792HCID 69880792—
Solvent1,2-DichloroethaneHCID 11—
ProductHCID 23521679HCID 235216798.4%

Reaction Conditions

Temperature0 °C

Reaction Steps

N-(3-(2-Methoxyphenylsulfinyl)phenyl)pyrid-3-ylmethylamine (159 mg, 0.44 mmol) was taken up in 1,2-dichloroethane (2.0 ml) and anhydrous pyridine (1.0 ml) and cooled under nitrogen to 0° C. Ethanesulfonyl chloride (103 mg, 0.80 mmol) is added dropwise via syringe and the reaction allowed to stir at 0° C. for thirty minutes. The ice bath is removed and the mixture stirred 88 hours at room temperature, as a matter of convenience. Solid potassium carbonate was added, the reaction stirred an additional hour, and then filtered and concentrated to a dark oil. Radial silica gel chromatography (2 mm Chromatotron® plate, eluting with 20/1 methylene chloride/methanol) afforded the title compound (16 mg, 8%). 1H NMR(400 MHz): 1.39(3H,t,J=7.3), 3.04(2H,q,J=7.3), 3.78(3H,s), 4.88(2H,s), 6.86(1H,d,J=7.8), 7.11-7.21(2H,m), 7.25-7.30(1H,m), 7.35(1H,t,J=7.8), 7.42(1H,dt,J=7.3, 2.0), 7.56-7.62(2H,m), 7.68(1H,m), 7.81(1H,dd,J=7.3, 1.5), 8.31(1H,br s), 8.46(1H,br s); MS(HRMS)m/z 431.1116([M+H]+calcd for C21H23N2O4S 431.1099).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06800651B2
Source datasetuspto-grants-2004_10
ORD IDord-334709d48cb24eae8229e26400e7c07e
Source noteuspto-grants-2004_10