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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1276343Generated: October 31, 2026

Water → HCID 9905971, compound

https://huagongshe.com/reaction/1276343

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantMethanesulfonic AcidHCID 6395—
Reactant3-ChlorothiopheneHCID 87017—
ReactantHCID 22116138HCID 22116138—
SolventTolueneHCID 1140—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 9905971HCID 990597130%

Reaction Steps

This compound is prepared from 2-amino-4-chloro-6-[2-(pyridin-2-yl)ethyl]phenol, and 3-thienyl chloride using method A with 1,4-dioxan as solvent to give the crude amide in a 100% yield. This is treated with methanesulphonic acid in toluene at reflux, with azeotropic removal of water. Purification by flash chromatography (SiO2, EtOAc:hexanes 1:1), gave the title compound, (30%) as a white crystalline solid, m.p. 126-127° C. TLC (SiO2, EtOAc:hexanes 1:1, Rf=0.46). CI Mass Spectrum (methane), m/z=341 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06166041
Source datasetuspto-grants-2000_12
ORD IDord-1b5db37a9e1041fb93f0dcb9d1bcd0c5
Source noteuspto-grants-2000_12