Nitrogen → 1-(Benzyloxy)-7-methoxy-3-(pyridin-3-yl)isoquinoline

Participants

Reaction Conditions

Reaction Steps

1-(Benzyloxy)-7-methoxy-3-(pyridin-3-yl)isoquinoline was prepared using Method N2. 1-(Benzyloxy)-3-chloro-7-methoxyisoquinoline (93 mg, 0.5 mmol, 1.0 eq.), potassium carbonate (357 mg, 2.5 mmol, 5.0 eq.), and Pd(PPh3)2Cl2 (18 mg, 0.026 mmol, 0.05 eq.) was dissolved in the mixed solvent of 1,4-dioxane (3 mL) and water (1 mL). The resulting mixture was stirred at 120° C. for 30 min under the microwave condition. The solid was filtrated off and the filtrate was concentrated. The residue was partitioned between ethyl acetate and water. The combined organic layers were washed with brine, dried over anhydrous sodium sulfate. After filtration and evaporation, the residue was purified by silica gel chromatography (petroleum ether/ethyl acetate=1:10) to afford 100 mg of xxxviii-a as a yellow solid (84.7%).

Provenance & Evidence