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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 40766Generated: October 29, 2026

Urea → 5,7-dichloroquinazoline-2,4(1H,3H)-dione

https://huagongshe.com/reaction/40766

Reaction equation

Participants

RoleNameHCIDCharge
ReactantUreaHCID 1176—
Reactant4,6-Dichloroanthranilic acidHCID 290498—
Product5,7-dichloroquinazoline-2,4(1H,3H)-dioneHCID 1508801—

Reaction Steps

Prepared according to general method C from 6-amino-2,4-dichlorobenzoic acid (2.0 g) and urea (5.83 g). Yield 1.72 g (77%) of a solid. 1H-NMR (DMSO-δ6) δ (ppm) 11.39 (br s, 2H), 7.32 (d, J=2.0 Hz, 1H), 7.15 (d, J=2.0 Hz, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08530486B2
Source datasetuspto-grants-2013_09
ORD IDord-ad5cdd3a84b0472f8d5153edea63ef4d
Source noteuspto-grants-2013_09