Sodium Carbonate → HCID 44547058, compound

Participants

Reaction Steps

2-Naphthaleneboronic acid (1.2 g, 7.2 mmol) was added to a solution of 4-bromoisoquinoline (1.0 g, 4.8 mmol) and triphenylphosphine (0.3 g, 0.9 mmol) in 1,2-dimethoxyethane (10 ml). The mixture was degassed with argon. Palladium(II) acetate (0.1 g, 0.5 mmol) was added and the suspension was stirred at room temperature for 20 minutes. Aqueous sodium carbonate (5.8 ml, 2 M) was added and the suspension was degassed with argon. After stirring at 85° C. for 3 hours, the cooled mixture was diluted with water and extracted with dichloromethane once. The combined extracts were dried with sodium sulfate, concentrated under vacuum and purified by chromatography (5:1 heptane/ethyl acetate) to give the desired product (1.1 g, 90%, 95% AUC GC): 1H NMR (300 MHz, CDCl3) δ 9.32 (s, 1H), 8.62 (s, 1H), 7.92-8.12 (m, 6H), 7.56-7.72 (m, 5H).

Provenance & Evidence