Sodium Carbonate → 4-(4-Methylpyridin-2-yl)-2-nitrotoluene

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

To a suspension of 2-bromo-4-methylpyridine (5.16 g), 4-methyl-3-nitrophenylboronic acid (7.06 g) and tetrakis(triphenylphosphine)-palladium (1.73 g) in 1,2-dimethoxyethane (100 ml) was added 2M aqueous solution of sodium carbonate (39 ml). The mixture was stirred at 80° C. for 12 hours under a nitrogen atmosphere, then cooled to room temperature and diluted with ethyl acetate. The organic layer was separated, washed with water and brine and dried over sodium sulfate. The solvent was evaporated under reduced pressure. 2-Propanol was added to the residue. The precipitate was collected by filtration and dried under reduced pressure to give 4-(4-methylpyridin-2-yl)-2-nitrotoluene (4.54 g).

Herkunft & Nachweise