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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 902432Generated: October 30, 2026

2,4-Dichloro-5-methoxyaniline → (2,4-Dichloro-5-methoxyphenyl)-[7-methoxy-8-(2-morpholin-4-yl-ethoxy)benzo[g]quinazolin-4-yl]-amine dihydrochloride

https://huagongshe.com/reaction/902432

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2,4-Dichloro-5-methoxyanilineHCID 1476636—
ReactantPyridinium chlorideHCID 10176127—
Reactant4-Chloro-7-methoxy-8-(2-morpholin-4-yl-ethoxy)benzo[g]quinazolineHCID 25013537—
SolventIsopropanolHCID 3776—
Product(2,4-Dichloro-5-methoxyphenyl)-[7-methoxy-8-(2-morpholin-4-yl-ethoxy)benzo[g]quinazolin-4-yl]-amine dihydrochlorideHCID 6926663061.9%

Reaction Steps

To a suspension of 0.05 g (0.133 mmol) of 4-chloro-7-methoxy-8-(2-morpholin-4-yl-ethoxy)benzo[g]quinazoline in 2 mL of isopropanol is added 0.031 g (0.161 mmol) of 2,4-dichloro-5-methoxyaniline and 0.016 g (0.133 mmol) of pyridine hydrochloride. The mixture is brought to reflux for 2 hours, then allowed to cool to room temperature. A yellow precipitate formed, which is filtered and washed with cold isopropanol. Drying in vacuo provided 0.030 g of (2,4-dichloro-5-methoxyphenyl)-[7-methoxy-8-(2-morpholin-4-yl-ethoxy)benzo[g]quinazolin-4-yl]-amine dihydrochloride as a yellow solid, mp 258-260° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07365197B2
Source datasetuspto-grants-2008_04
ORD IDord-b82083bcefae4958b0f65f193df65e21
Source noteuspto-grants-2008_04