Cesium carbonate → HCID 67072585, compound

Participants

Reaction Conditions

Reaction Steps

In 2 mL of absolute toluene were dissolved 100 mg (481 μmol) of 6-bromo-isoquinoline, 176 mg (577 μmol) of [1-(4-amino-1-methyl-cyclohexyl)-propyl]-carbamic acid benzyl ester (79), and 235 mg (721 μmol) of cesium carbonate. The solution was degassed twice, then 3.24 mg (14.4 μmol) of palladium acetate and 13.5 mg (21.6 μmol) of 2,2′-bis(diphenylphosphino)-1,1′-binaphthyl were added and the reaction mixture was heated to 100° C. until complete conversion could be observed. The mixture was evaporated, the residue dissolved in 50 mL of dichloromethane and washed twice with 50 mL of saturated aqueous sodium bicarbonate solution. The organic phase was dried over magnesium sulphate, filtered, concentrated and purified by silica gel chromatography (dichloromethane:methanol) to give 66 mg of the pure desired product. Rt=1.32 min (Method O). Detected mass: 432.3 (M+H+).

Provenance & Evidence