Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2274153Generated: October 30, 2026

Phosphorus oxychloride → 4-Chloro-6-fluoro-7-morpholin-4-ylquinazoline

https://huagongshe.com/reaction/2274153

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosphorus oxychlorideHCID 24813—
ReactantDiisopropylethylamineHCID 81531—
Reactant6-fluoro-7-morpholin-4-yl-3H-quinazolin-4-oneHCID 136000244—
Product4-Chloro-6-fluoro-7-morpholin-4-ylquinazolineHCID 77230932123.3%

Reaction Steps

5.0 g (0.02 mol) of 6-fluoro-7-morpholin-4-yl-3H-quinazolin-4-one were suspended in 37.0 ml (0.04 mol) of phosphoryl chloride at room temperature, 3.4 ml (0.02 mol) of N-ethyldiisopropylamine were subsequently added, and the mixture was heated under reflux for 2 h. Conventional work-up gave 6.6 g of 4-chloro-6-fluoro-7-morpholin-4-ylquinazoline.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09126952B2
Source datasetuspto-grants-2015_09
ORD IDord-a041d9deafcc4cb6882fded8174b136e
Source noteuspto-grants-2015_09