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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2296711Generated: October 31, 2026

5-Amino-6-nitro-4(3H)-quinazolinone → HCID 135813643, compound

https://huagongshe.com/reaction/2296711

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Amino-6-nitro-4(3H)-quinazolinoneHCID 135813642—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
ProductHCID 135813643HCID 13581364398.5%

Reaction Steps

A suspension of the above amine (250 mg, 1.21 mmol) in MeOH (50 mL) was hydrogenated over 10% Pd/C (50 mg) at 50 psi for 5 h. The catalyst was removed by filtration and the filtrate concentrated to yield 5,6-diaminoquinazolin-4-one (210 mg, 98% crude).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06489328B2
Source datasetuspto-grants-2002_12
ORD IDord-bd5e130e88eb46dabd5e0f3d31341743
Source noteuspto-grants-2002_12