Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1428394Generated: November 1, 2026

Ethanol → 4-(Trifluoromethoxy)benzene-1,2-diamine

https://huagongshe.com/reaction/1428394

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantAmmonium ChlorideHCID 25517—
Reactant2-Nitro-4-(trifluoromethoxy)anilineHCID 2775772—
CatalystZincHCID 23994—
SolventWaterHCID 962—
Product4-(Trifluoromethoxy)benzene-1,2-diamineHCID 2773959—

Reaction Conditions

Temperature60 °C

Reaction Steps

To a mixture of 2-nitro-4-(trifluoromethoxy)aniline (1.17 g) and EtOH (20 mL) were added ammonium chloride (565 mg) and water (5 mL), followed by further adding zinc powder (1.73 g) at 60° C., and heating and stirring at 60° C. for 1 hour. The reaction mixture was cooled to room temperature, filtered over Celite, and washed with EtOAc. This filtrate was washed with a saturated aqueous NaHCO3 solution and brine in this order, dried over MgSO4, and then concentrated under reduced pressure to obtain 4-(trifluoromethoxy)benzene-1,2-diamine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08937087B2
Source datasetuspto-grants-2015_01
ORD IDord-6395519b5acf4c2cb750213db2fd074f
Source noteuspto-grants-2015_01