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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 479270Generated: October 29, 2026

Aniline → 2-Chloro-4-phenyl-amino-quinazoline

https://huagongshe.com/reaction/479270

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAnilineHCID 6115—
ReactantDiisopropylethylamineHCID 81531—
Reactant2,4-DichloroquinazolineHCID 252886—
SolventIsopropanolHCID 3776—
Product2-Chloro-4-phenyl-amino-quinazolineHCID 22639808—

Reaction Steps

A solution of 2,4-dichloro-quinazoline (15 g), N,N-diisopropyl-ethylamine (24.9 ml) and aniline (7.5 ml) in isopropanol (75 ml) is heated to reflux for 45 min. The cold reaction mixture is filtered and the filtrate is concentrated in vacuo. The residue is crystallized from diethylether-toluene (1:1) to give 2-chloro-4-phenyl-amino-quinazoline, m.p. 194-196° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06645774B1
Source datasetuspto-grants-2003_11
ORD IDord-c45cc5dbd5a34a0dbf50012c51506115
Source noteuspto-grants-2003_11