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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1936766Generated: October 30, 2026

Formamide → HCID 22609761, compound

https://huagongshe.com/reaction/1936766

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormamideHCID 713—
ReactantWaterHCID 962—
Reactant2-Amino-5-cyanobenzoic acidHCID 10057817—
ProductHCID 22609761HCID 2260976144%

Reaction Steps

A stirred solution of 2-amino-5-cyanobenzoic acid (2.0 g, 12.3 mmol) in formamide (10 ml) was heated at 190° C. for 7 hours. The dark solution was allowed to cool and poured into water (50 ml). The resulting precipitate was collected by filtration and dried in vacuo at 60° C. to give 6-cyanoquinazolinone (0.93 g, 5.43 mmol, 44%); [2H6]DMSO 12.65 (1H,s), 8.50 (1H,s), 8.28 (1H,s), 8.18 (1H,dd), 7.81(1H,d).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06391874B1
Source datasetuspto-grants-2002_05
ORD IDord-72495980616a4888ab712fa0276e8dc4
Source noteuspto-grants-2002_05