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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2092309Generated: November 1, 2026

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

https://huagongshe.com/reaction/2092309

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 numberUS08440674B2
Source datasetuspto-grants-2013_05
ORD IDord-1dbf8807b2fd4b1580f14cd0e6b3bb0c
Source noteuspto-grants-2013_05