lead(IV) acetate; benzene Erwaermen der Reaktionsprodukte mit wss.Essigsaeure;

1: sodium periodate; sodium hydrogencarbonate / dichloromethane / 1 h 2: sodium tetrahydroborate / ethanol / 0 °C View Scheme

1: 1.) lead tetraacetate, 2.) sodium borohydride, 3.) sodium hydroxide / 1.) ethyl acetate, 0 deg C, 1 h; 25 deg C, 1 h, 2.) ethanol, 0 deg C, 1 h; 25 deg C, 1 h, 3.) 1 h 2: 91 percent / triethylamine / CHCl3 / 1.) 0 deg C, 30 min, 2.) room temperature View Scheme

lead(IV) acetate; sodium hydroxide; sodium tetrahydroborate 1.) ethyl acetate, 0 deg C, 1 h; 25 deg C, 1 h, 2.) ethanol, 0 deg C, 1 h; 25 deg C, 1 h, 3.) 1 h; Yield given. Multistep reaction;

in ethylene glycol dimethyl ether 48 h; Heating;

sodium periodate; sodium hydrogencarbonate in dichloromethane 1 h;

1: 1.) lead tetraacetate, 2.) sodium borohydride, 3.) sodium hydroxide / 1.) ethyl acetate, 0 deg C, 1 h; 25 deg C, 1 h, 2.) ethanol, 0 deg C, 1 h; 25 deg C, 1 h, 3.) 1 h 2: 91 percent / triethylamine / CHCl3 / 1.) 0 deg C, 30 min, 2.) room temperature 3: 65 percent / sodium bicarbonate, sodium iodide / dimethylsulfoxide / 2 h / 80 °C View Scheme

1: sodium periodate; sodium hydrogencarbonate / dichloromethane / 1 h 2: sodium tetrahydroborate / ethanol / 0 °C 3: triethylamine / 2 h / 0 °C 4: sodium azide / N,N-dimethyl-formamide / 90 °C View Scheme