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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1276342Generated: October 30, 2026

Water → HCID 9949854, compound

https://huagongshe.com/reaction/1276342

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantMethanesulfonic AcidHCID 6395—
Reactant2-ChlorothiopheneHCID 7299—
ReactantHCID 22116138HCID 22116138—
SolventTolueneHCID 1140—
SolventEthyl AcetateHCID 8857—
ProductHCID 9949854HCID 994985431%

Reaction Steps

This compound is prepared from 2-amino-4-chloro-6-[2-(pyridin-2-yl)ethyl]phenol and 2-thienyl chloride using method A, with ethyl acetate as solvent to give the crude amide in 99% yield. This is treated with methanesulphonic acid in toluene at reflux, with azeotropic removal of water to give the title compound, (31%) as a white crystalline solid after trituration and recrystallisation (EtOAc), m.p. 90-91° C. TLC (SiO2 ; EtOAc:hexanes 1:1, Rf=0.46). Mass Spectrum CI (methane), m/z=341 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06166041
Source datasetuspto-grants-2000_12
ORD IDord-1047d4d4c87040f5823e4e4f8f9b3391
Source noteuspto-grants-2000_12