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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 15513Generated: October 24, 2026

Ethyl Acetate → 1-(2-Amino-4-(benzyloxy)-5-methoxyphenyl)ethanone

https://huagongshe.com/en/reaction/15513

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
ReactantAmmonium formateHCID 2723923—
Reactant1-(4-(Benzyloxy)-5-methoxy-2-nitrophenyl)ethanoneHCID 53486760—
CatalystIronHCID 23925—
SolventWaterHCID 962—
SolventTolueneHCID 1140—
Product1-(2-Amino-4-(benzyloxy)-5-methoxyphenyl)ethanoneHCID 2266714786%

Reaction Steps

A mixture of 1-(4-(benzyloxy)-5-methoxy-2-nitrophenyl)ethanone (3.6 g, 12 mmol), iron powder (4.5 g) and ammonium formate (5.5 g) in toluene (50 mL) and water (50 mL) was heated at reflux temp. for 2 days with stirring. To this mixture was added EtOAc (100 mL), stirred for 20 minutes, the solid was filtered through a celite bed and washed with EtOAc (150 mL). The EtOAc layer was separated from the filtrate solution, washed with water (2×100 mL), dried over MgSO4 and concentrated in vacuo to afford the product (2.80 g, 86%) as a beige-colored solid. 1H NMR (CDCl3) δ 7.41-7.30 (m, 5H), 7.13 (s, 1H), 6.15 (br s, 2H), 6.10 (s, 1H), 5.13 (s, 2H), 3.84 (s, 3H), 2.51 (s, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07732613B2
Source datasetuspto-grants-2010_06
ORD IDord-b943a218c56d48dc861cd550476831fc
Source noteuspto-grants-2010_06