Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2182549Generated: October 30, 2026

Methanol → HCID 22478229, compound

https://huagongshe.com/reaction/2182549

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantHCID 22478299HCID 22478299—
ReactantPotassium hydroxy sulfiteHCID 23707502—
SolventWaterHCID 962—
SolventDichloromethaneHCID 6344—
ProductHCID 22478229HCID 2247822980%

Reaction Steps

A solution of OXONE, (trade mark of E.I. du Pont de Nemours & Co., Inc), (652 mg) in water (1.6 ml) was added to a solution of 4-(4-chloro-2-fluoroanilino)-6-methoxy-7-(2-methylthioethoxy)quinazoline (200 mg, 0.5 mmol), (prepared as described in Example 29), in methanol (10 ml) and the mixture was stirred for 18 hours at ambient temperature. The mixture was diluted with methylene chloride, was washed with aqueous sodium hydrogen carbonate solution, dried (MgSO4) and the solvent was removed by evaporation. The residue was triturated with ethyl acetate/hexane, collected by filtration and dried to give 4-(4-chloro-2-fluoroanilino)-6-methoxy-7-(2-methylsulphonylethoxy)quinazoline (172 mg, 80%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06897210B2
Source datasetuspto-grants-2005_05
ORD IDord-38d73c22ef5f4185b562eebe384405eb
Source noteuspto-grants-2005_05