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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 445450Generated: October 29, 2026

Hydrochloric Acid → HCID 57810258, compound

https://huagongshe.com/reaction/445450

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant2-Fluoro-4-nitroanilineHCID 101254—
Reactant4-Chloro-6,7-dimethoxyquinazolineHCID 2769364—
Solvent2-OxopropiononitrileHCID 69430—
ProductHCID 57810258HCID 5781025881.4%

Reaction Steps

A mixture of 4-chloro-6,7-dimethoxy-quinazoline (548 mg, 2.4 mmol), 2-fluoro-4-nitro-phenylamine (392 mg, 2.5 mmol), AcCN (10 ml), and conc'd HCl (0.050 ml) was heated to reflux for several hrs. After the reaction mixture was allowed to cool to room temperature, the resulting solids were filtered, washed with AcCN and air-dried to give (6,7-dimethoxy-quinazolin-4-yl)-(2-fluoro-4-nitro-phenyl)-amine (673 mgs, 80%). 1H-NMR (400 MHz, DMSO): 12.18 (br s, 1H), 8.91 (s, 1H), 8.45 (s, 1H), 8.36 (dd, 1H), 8.24 (dd, 1H), 7.91 (dd, 1H), 7.44 (s, 1H), 4.04 (s, 3H), 4.02 (s, 3H). LC/MS Calcd for [M+H]+ 345.1, found 345.4.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08476298B2
Source datasetuspto-grants-2013_07
ORD IDord-ba0023c96ae04cd0bfa58907f7c39f3c
Source noteuspto-grants-2013_07