Potassium Carbonate → HCID 86669228, compound

Participants

Reaction Conditions

Reaction Steps

1-methylethyl [(2S,4R)-1-acetyl-6-bromo-2-methyl-1,2,3,4-tetrahydro-4-quinolinyl]carbamate (for a preparation see Intermediate 16) (1 g, 2.71 mmol), (4-formylphenyl)boronic acid (0.487 g, 3.25 mmol, available from Aldrich), Pd(Ph3P)4, (0.156 g, 0.135 mmol) and potassium carbonate (0.487 g, 3.52 mmol) were combined in dry ethanol (7 ml) and dry toluene (7.00 ml) and the reaction mixture was de-gassed for 10 mins. The reaction mixture was heated at 85° C. overnight. The reaction mixture was allowed to cool to r.t. and concentrated. The crude reaction mixture was partitioned between water (15 ml) and ethyl acetate (5 ml) and stirred at r.t. for 30 mins. A light grey solid precipitated out and was filtered off, washed with water (5 ml) and dried in a vacuum oven to give 854 mg of grey solid. LCMS (Method B): Rt=1.00, MH+=395

Provenance & Evidence