2-Bromopyridine → 6'-Methoxy-2,3'-bipyridyl

Participants

Reaction Steps

6-Methoxy-3-pyridylboronic acid (105 g), 2-bromopyridine (90 g), palladium acetate (3.21 g), triphenylphosphine (15 g), potassium carbonate (237 g), 1,2-dimethoxyethane (900 mL) and water (900 mL) were heated under reflux for 5 hours and 40 minutes under stirring. After cooling the reaction solution, ethyl acetate (1 L) was added thereto to extract. The organic layer was washed with 1 L of 10% aqueous solution of ammonium chloride, 1 L of 10% aqueous ammonia and 1 L of 10% saline, and then evaporated, to give 126 g (87%) of the title compound.

Provenance & Evidence