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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1520368Generated: November 4, 2026

N,N-Dimethylaniline → 4-Chloro-6-nitro-2-(2-pyrazinyl)quinazoline

https://huagongshe.com/reaction/1520368

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN,N-DimethylanilineHCID 949—
ReactantPhosphorus oxychlorideHCID 24813—
ReactantHCID 136334003HCID 136334003—
Product4-Chloro-6-nitro-2-(2-pyrazinyl)quinazolineHCID 86677081—

Reaction Conditions

Temperature120 °C

Reaction Steps

To a mixture of 6-nitro-2-(pyrazin-2-yl)quinazolin-4(3H)-one (1.00 g, 3.7 mmol) in POCl3 (10 mL) was added N,N-dimethylbenzenamine (0.1 mL). The resulting mixture was stirred at 120° C. for 2 h. After the reaction was completed, POCl3 was removed in vacuo, and the residue was co-evaporated with toluene twice to give a dark crude product, which was used for the next step without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09073890B2
Source datasetuspto-grants-2015_07
ORD IDord-1b51e55b22424b0788fa26a38cb9ebba
Source noteuspto-grants-2015_07