potassium carbonate in N,N-dimethyl-formamide T=25°C; 14 h;

1: 88 percent / K2CO3 / dimethylformamide / 14 h / 25 °C 2: 97 percent / aq. NaClO2; NaH2PO4; 2-methyl-2-butene / 2-methyl-propan-2-ol / 12 h / 25 °C View Scheme

1.1: 88 percent / K2CO3 / dimethylformamide / 14 h / 25 °C 2.1: 97 percent / aq. NaClO2; NaH2PO4; 2-methyl-2-butene / 2-methyl-propan-2-ol / 12 h / 25 °C 3.1: diphenylphosphoryl azide; Et3N / tetrahydrofuran / 3 h / 25 °C 3.2: 78 percent / H2O / tetrahydrofuran / 2 h / Heating View Scheme

potassium permanganate in water; acetone 17 h; Ambient temperature;