1: With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; potassium acetate; 4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl-4',4',5',5'-tetramethyl-1,3,2-dioxaborolane in 2-methyl tetrahydrofuran T=80°C; 15 h; 2: With water; sodium hydroxide in 2-methyl tetrahydrofuran 3: With hydrogenchloride; sodium periodate in 2-methyl tetrahydrofuran; water T=20°C; 15 h;

1: With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; potassium acetate in 2-methyl tetrahydrofuran T=80°C; 15 h; 2: With water; sodium hydroxide in 2-methyl tetrahydrofuran 3: With hydrogenchloride in 2-methyl tetrahydrofuran; water T=0°C; pH=1.5;

1.1: benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine / acetonitrile / 2 h / 70 °C 2.1: (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; potassium acetate; 4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl-4',4',5',5'-tetramethyl-1,3,2-dioxaborolane / 2-methyl tetrahydrofuran / 15 h / 80 °C 2.3: 15 h / 20 °C View Scheme

1.1: benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine / acetonitrile / 2 h / 70 °C 2.1: (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; potassium acetate / 2-methyl tetrahydrofuran / 15 h / 80 °C 2.3: 0 °C / pH 1.5 View Scheme