Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1973877Generated: November 1, 2026

Thionyl Chloride → HCID 21490646, compound

https://huagongshe.com/reaction/1973877

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
Reactant2-(4-Ethylphenyl)quinazolin-4(1H)-oneHCID 135604695—
SolventDimethylformamideHCID 6228—
ProductHCID 21490646HCID 21490646—

Reaction Steps

A mixture of 7.43 g of 2-(4-ethylphenyl)quinazolin-4(3H)-one and 50 ml of thionyl chloride was treated with 2.17 g of dimethylformamide as described in Example I. The solid was recrystallized twice from petroleum ether (60°-110° fraction) to give 4.23 g of light-colored 4-chloro-2-(4-ethylphenyl)quinazoline, m.p. 75.5°-76.5°; ir and nmr spectra were consistent with the assigned structure.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03998951
Source datasetuspto-grants-1976_12
ORD IDord-fae512bd42724248b0b1c9a158f3d6c2
Source noteuspto-grants-1976_12