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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1290273Generated: October 27, 2026

Ethyl pyruvate → Ethyl 2-hydroxy-2-(5-bromo-6-methoxynaphth-2-yl)propionate

https://huagongshe.com/reaction/1290273

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl pyruvateHCID 12041—
Reactant1-Bromo-2-methoxynaphthaleneHCID 72860—
ReactantAluminum(III) ChlorideHCID 6451240—
SolventDichloromethaneHCID 6344—
ProductEthyl 2-hydroxy-2-(5-bromo-6-methoxynaphth-2-yl)propionateHCID 1396154211%

Reaction Conditions

Temperature5 °C

Reaction Steps

Ethyl pyruvate (1,64 g, 14,1 mmol) in dichloromethane (5 mL), was added to a mixture of 1-bromo-2-methoxynaphthalene (2,23 g, 9,41 mmol) and aluminium chloride (1,88 g, 14,1 mmol) in dichloromethane (20 mL) at 5° C. over 30 minutes. The mixture was stirred at 5° C. for a further 1,5 hours and poured on to ice. Ethyl 2-hydroxy-2-(5-bromo-6-methoxynaphth-2-yl)propionate was formed in 11% yield. 1HNMR δ (CDCl3) 1.24 (3H,t), 1.85 (3H,s), 4.00 (3H,s), 4.26 (2H,q), 7.2-8.2 (5H2 m).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05750764
Source datasetuspto-grants-1998_05
ORD IDord-0f08432385254adfbd8d0beaaa06fcce
Source noteuspto-grants-1998_05