Ammonia → 2-Methoxy-6-(4-methoxy-2-nitrophenyl)naphthalene

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

The title compound was synthesized by referring to J. Am. Chem. Soc., 1999, 121, 760. A suspension of 6-methoxy-2-bromonaphthalene (500 mg), tributyl(4-methoxy-2-nitrophenyl)tin (1.1 g), tetrakis(triphenylphosphine)palladium(0) (250 mg), copper(I) chloride (1.0 g) and lithium chloride (540 mg) in dimethylsulfoxide (15 ml) was stirred at 60° C. for 5 hours under a nitrogen atmosphere. Ethyl acetate and aqueous ammonia were sequentially added thereto, the solution was filtered through celite pad, extracted with ethyl acetate, then sequentially washed with water and brine, dried over anhydrous magnesium sulfate, and then the solvent was evaporated in vacuo. The residue was washed with a hexane-diethyl ether system to provide the title compound (412 mg).

Herkunft & Nachweise