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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1641884Generated: November 2, 2026

Ethyl Acetate → 4,4'-Dimethoxybenzhydrylamine

https://huagongshe.com/reaction/1641884

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
Reactantn-Hydroxy-1,1-bis(4-methoxyphenyl)methanimineHCID 289718—
ReactantAmmonium AcetateHCID 517165—
CatalystZincHCID 23994—
SolventAmmoniaHCID 222—
SolventEthanolHCID 702—
Product4,4'-DimethoxybenzhydrylamineHCID 350042—

Reaction Conditions

Temperature50 °C

Reaction Steps

Bis-(4-methoxy-phenyl)-methanone oxime (20 g, 77.82 mmol) is suspended in ammonia (450 mL) and ethanol (90 mL). Ammonium acetate (3.00 g, 38.91 mmol) is added followed by the portion-wise addition of zinc dust (25.29 g, 389.1 mmol). Once the addition is complete the reaction mixture is slowly heated to 50° C. When the effervescence has ceased the reaction mixture is refluxed for 4 hours. The reaction mixture is allowed to cool and ethyl acetate is added (250 mL). The reaction mixture is filtered through Celite® and the phases are separated. The organic layer dried is over MgSO4, filtered and the solvent removed in vacuo to give the title compound. 1H nmr (CDCl3, 400 MHz); 7.25 (d, 4H), 6.80 (d, 4H), 5.10 (s, 1H), 3.75 (s, 6H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08114877B2
Source datasetuspto-grants-2012_02
ORD IDord-4fecd04da9b04241b2d001e00d976dee
Source noteuspto-grants-2012_02