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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 411946Generated: October 25, 2026

Isopropanol → N4-Phenylquinazoline-4,6-diamine

https://huagongshe.com/reaction/411946

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIsopropanolHCID 3776—
ReactantHydrazine hydrate (1:1)HCID 24654—
Reactant6-Nitro-N-phenylquinazolin-4-amineHCID 5328189—
CatalystNickelHCID 935—
SolventWater ethanolHCID 19096565—
ProductN4-Phenylquinazoline-4,6-diamineHCID 5328187—

Reaction Steps

A solution of 4-(phenylamino)-6-nitroquinazoline in ethanol/water and a polar solvent such as iso-propylalcohol is reacted at reflux temperature with hydrazine hydrate and Raney®Nickel. The reaction mixture is filtered, evaporated and purified by silica gel chromatography, to give the product, 4-(phenylamino)-6-aminoquinazoline.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06562319B2
Source datasetuspto-grants-2003_05
ORD IDord-ce5fada03a2a41768303a391ff3f672c
Source noteuspto-grants-2003_05