1: (RS)-1-(n-butyltellanyl)-3-butanol With n-butyllithium in tetrahydrofuran; hexane T=-70°C; 0.333333 h; 2: benzophenone in tetrahydrofuran; hexane T=-70 - 0°C;

1: With 1,10-phenanthroline; oxygen; copper diacetate; triethylamine in toluene; acetonitrile T=20°C; 2: With lithium aluminium tetrahydride in tetrahydrofuran T=0 - 20°C; 1 h;

1,10-phenanthroline; 2-hydroxy-1,3-isoindolinedione; oxygen; copper(l) chloride in acetonitrile; benzene T=50°C; 24 h;

1.1: dihydrogen peroxide; sulfuric acid / tetrahydrofuran; water / 10 h / 0 - 60 °C 2.1: copper diacetate; 1,10-phenanthroline; triethylamine; oxygen / toluene; acetonitrile / 20 °C 2.2: 20 °C 3.1: diethyl ether; hexane / -78 - 20 °C 4.1: dihydrogen peroxide; sulfuric acid / tetrahydrofuran; water / 8 h / 0 - 60 °C 5.1: copper diacetate; 1,10-phenanthroline; triethylamine; oxygen / toluene; acetonitrile / 20 °C 5.2: 1 h / 0 - 20 °C View Scheme

1.1: dihydrogen peroxide; sulfuric acid / tetrahydrofuran; water / 24 h / 0 - 60 °C 2.1: copper diacetate; 1,10-phenanthroline; triethylamine; oxygen / toluene; acetonitrile / 20 °C 2.2: 20 °C 3.1: diethyl ether; hexane / -78 - 20 °C 4.1: dihydrogen peroxide; sulfuric acid / tetrahydrofuran; water / 8 h / 0 - 60 °C 5.1: copper diacetate; 1,10-phenanthroline; triethylamine; oxygen / toluene; acetonitrile / 20 °C 5.2: 1 h / 0 - 20 °C View Scheme

1.1: dihydrogen peroxide; sulfuric acid / tetrahydrofuran; water / 8 h / 0 - 60 °C 2.1: copper diacetate; 1,10-phenanthroline; triethylamine; oxygen / toluene; acetonitrile / 20 °C 2.2: 20 °C 3.1: diethyl ether; hexane / -78 - 20 °C 4.1: dihydrogen peroxide; sulfuric acid / tetrahydrofuran; water / 8 h / 0 - 60 °C 5.1: copper diacetate; 1,10-phenanthroline; triethylamine; oxygen / toluene; acetonitrile / 20 °C 5.2: 1 h / 0 - 20 °C View Scheme

1.1: diethyl ether; hexane / -78 - 20 °C 2.1: dihydrogen peroxide; sulfuric acid / tetrahydrofuran; water / 8 h / 0 - 60 °C 3.1: copper diacetate; 1,10-phenanthroline; triethylamine; oxygen / toluene; acetonitrile / 20 °C 3.2: 1 h / 0 - 20 °C View Scheme

1.1: diethyl ether / -78 - 20 °C 2.1: dihydrogen peroxide; sulfuric acid / tetrahydrofuran; water / 8 h / 0 - 60 °C 3.1: copper diacetate; 1,10-phenanthroline; triethylamine; oxygen / toluene; acetonitrile / 20 °C 3.2: 20 °C 4.1: diethyl ether; hexane / -78 - 20 °C 5.1: dihydrogen peroxide; sulfuric acid / tetrahydrofuran; water / 8 h / 0 - 60 °C 6.1: copper diacetate; 1,10-phenanthroline; triethylamine; oxygen / toluene; acetonitrile / 20 °C 6.2: 1 h / 0 - 20 °C View Scheme

1.1: diethyl ether / -78 - 20 °C 2.1: dihydrogen peroxide; sulfuric acid / tetrahydrofuran; water / 8 h / 0 - 60 °C 3.1: copper diacetate; 1,10-phenanthroline; triethylamine; oxygen / toluene; acetonitrile / 20 °C 3.2: 20 °C 4.1: diethyl ether; hexane / -78 - 20 °C 5.1: dihydrogen peroxide; sulfuric acid / tetrahydrofuran; water / 8 h / 0 - 60 °C 6.1: copper diacetate; 1,10-phenanthroline; triethylamine; oxygen / toluene; acetonitrile / 20 °C 6.2: 1 h / 0 - 20 °C View Scheme

1.1: tetrahydrofuran 1.2: 48 h / |Reflux 2.1: diethyl ether / -78 - 20 °C 3.1: dihydrogen peroxide; sulfuric acid / tetrahydrofuran; water / 8 h / 0 - 60 °C 4.1: copper diacetate; 1,10-phenanthroline; triethylamine; oxygen / toluene; acetonitrile / 20 °C 4.2: 20 °C 5.1: diethyl ether; hexane / -78 - 20 °C 6.1: dihydrogen peroxide; sulfuric acid / tetrahydrofuran; water / 8 h / 0 - 60 °C 7.1: copper diacetate; 1,10-phenanthroline; triethylamine; oxygen / toluene; acetonitrile / 20 °C 7.2: 1 h / 0 - 20 °C View Scheme