sodium chlorite; sodium dihydrogen phosphate monohydrate; recorcinol in water; tert-butyl alcohol T=20°C; Inert atmosphere;

NaClO2

1: di-isopropyl azodicarboxylate; triethylamine; triphenylphosphine / tetrahydrofuran / 20 °C / Inert atmosphere; Cooling with ice 2: 4-(N,N-dimethlyamino)pyridine; dicyclohexyl-carbodiimide / dichloromethane / 16 h / 20 °C / Inert atmosphere 3: sodium chlorite; sodium dihydrogen phosphate monohydrate; recorcinol / tetrahydrofuran; water; tert-butyl alcohol / 20 °C View Scheme

1: DCC; DMAP / CH2Cl2 2: NaClO2; NaH2PO4; resorcinol / 2-methyl-propan-2-ol View Scheme

1: 4-(N,N-dimethlyamino)pyridine; dicyclohexyl-carbodiimide / dichloromethane / 16 h / 20 °C / Inert atmosphere 2: sodium chlorite; sodium dihydrogen phosphate monohydrate; recorcinol / tetrahydrofuran; water; tert-butyl alcohol / 20 °C View Scheme

1: di-isopropyl azodicarboxylate; triethylamine; triphenylphosphine / tetrahydrofuran / 20 °C / Inert atmosphere; Cooling with ice 2: 4-(N,N-dimethlyamino)pyridine; dicyclohexyl-carbodiimide / dichloromethane / 16 h / 20 °C / Inert atmosphere 3: sodium chlorite; sodium dihydrogen phosphate monohydrate; recorcinol / tetrahydrofuran; water; tert-butyl alcohol / 20 °C View Scheme

1: potassium carbonate / acetone 2: potassium hydroxide / water; ethanol 3: 4-(N,N-dimethlyamino)pyridine; dicyclohexyl-carbodiimide / dichloromethane / 48 h / 25 °C / |Inert atmosphere 4: recorcinol; sodium chlorite; sodium dihydrogen phosphate dihydrate / water; tert-butyl alcohol / 48.5 h / 30 °C / |Inert atmosphere View Scheme

1: potassium hydroxide / water; ethanol 2: 4-(N,N-dimethlyamino)pyridine; dicyclohexyl-carbodiimide / dichloromethane / 48 h / 25 °C / |Inert atmosphere 3: recorcinol; sodium chlorite; sodium dihydrogen phosphate dihydrate / water; tert-butyl alcohol / 48.5 h / 30 °C / |Inert atmosphere View Scheme

1: 4-(N,N-dimethlyamino)pyridine; dicyclohexyl-carbodiimide / dichloromethane / 48 h / 25 °C / |Inert atmosphere 2: recorcinol; sodium chlorite; sodium dihydrogen phosphate dihydrate / water; tert-butyl alcohol / 48.5 h / 30 °C / |Inert atmosphere View Scheme