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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1767145Generated: November 1, 2026

Benzoic acid, 2-amino-5-iodo- → 6-Iodoquinazolin-4-one

https://huagongshe.com/reaction/1767145

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzoic acid, 2-amino-5-iodo-HCID 72911—
ReactantAmmonia methanolHCID 21705897—
ReactantMethylorthoformateHCID 53629101—
Product6-Iodoquinazolin-4-oneHCID 13540166699%

Reaction Steps

In a 2-mL volume stainless steel pressure-resistant vessel were placed 500 mg (1.9 mmol) of 5-iodoanthranilic acid, 403 mg (3.8 mmol) of methyl orthoformate, and 1.2 mL (8.4 mmol) of 15 wt. % ammonia methanol solution. The reaction was carried out at 120° C. for 2 hours. After the reaction was complete, the reaction mixture was cooled to room temperature and analyzed (according to absolute quantitative analysis) by high performance liquid chromatography. There was produced 515 mg (reaction yield: 99%) of 6-iodoquinazolin-4-one.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07232903B2
Source datasetuspto-grants-2007_06
ORD IDord-c4c5750d09734565a31cc8b65f1771cb
Source noteuspto-grants-2007_06