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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1668951Generated: October 30, 2026

Ammonium formate → 7-methyl-N4-(3-(trifluoromethyl)phenyl)quinazoline-4,8-diamine

https://huagongshe.com/reaction/1668951

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium formateHCID 2723923—
Reactant6-bromo-7-methyl-8-nitro-N-(3-(trifluoromethyl)phenyl)quinazolin-4-amineHCID 67338629—
CatalystPalladiumHCID 23938—
SolventEthanolHCID 702—
Product7-methyl-N4-(3-(trifluoromethyl)phenyl)quinazoline-4,8-diamineHCID 6733863256.1%

Reaction Conditions

Temperature140 °C

Reaction Steps

To a microwave vial were added ammonium formate (131 μl, 2664 μmol), 6-bromo-7-methyl-8-nitro-N-(3-(trifluoromethyl)phenyl)quinazolin-4-amine (569 mg, 1332 μmol), and palladium black (11.8 μl, 1332 μmol) in ethanol (10 mL). The reaction mixture was heated to 140° C. for 20 min under microwave conditions and taking care to monitor the pressure in the reaction vessel. On cooling the reaction mixture was filtered through celite and filtrate concentrated in vacuo to afford 7-methyl-N4-(3-(trifluoromethyl)phenyl)quinazoline-4,8-diamine (238 mg, 56.1% yield). MS (M+H)+ 319.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07989461B2
Source datasetuspto-grants-2011_08
ORD IDord-059ca40293fa4bc987c316afc264965d
Source noteuspto-grants-2011_08