1,2-Dimethoxyethane → HCID 86696565, compound

Participants

Reaction Conditions

Reaction Steps

Methyl 8-chloro-1-cyclopropyl-9-methyl-4-oxo-4H-quinolizine-3-carboxylate (100 mg, 0.34 mmol), cesium carbonate (335 mg, 1.03 mmol) and 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indazole (92 mg, 0.38 mmol) were added to a mixture of 1,2-dimethoxyethane (3 mL) and water (1 mL). The mixture was degassed with argon. 1,1′-Bis-(diphenylphosphino)-ferrocene) palladium dichloride (28 mg, 0.03 mmol) was added. The reaction mixture was heated at 150° C. in a microwave oven under argon atmosphere for 0.25 h. The reaction mixture was cooled. The mixture was diluted with DCM (3 mL) and water was added (3 mL). The layers were separated using a phase separator and the aqueous layer was extracted with DCM (2×5 mL). The combined organic layers were concentrated in vacuum. The crude product was purified by flash silica column chromatography (DCM:MeOH) (1:0 to 9:1) and dried in vacuum to afford the title compound as a yellow solid (93 mg, 72%).

Provenance & Evidence