Grubbs I catalyst immobilized on supported ionic liquid in toluene T=100°C; 3 h; Inert atmosphere;

tetrakis(triphenylphosphine) palladium(0) in dichloromethane T=20°C; Tsuji-Trost type reaction; 20 h;

1: pyridine 2: pyridinium p-toluenesulfonate / ethanol 3: Cornforth reagent / dichloromethane / Molecular sieve 4: sodium chlorite; sodium dihydrogen phosphate dihydrate; 2-methyl-but-2-ene / tert-butyl alcohol 5: tetrakis(triphenylphosphine) palladium(0) / dichloromethane / 20 h / 20 °C View Scheme

1: Cornforth reagent / dichloromethane / Molecular sieve 2: sodium chlorite; sodium dihydrogen phosphate dihydrate; 2-methyl-but-2-ene / tert-butyl alcohol 3: tetrakis(triphenylphosphine) palladium(0) / dichloromethane / 20 h / 20 °C View Scheme

1: potassium tert-butylate / tetrahydrofuran / -78 °C 2: diisobutylaluminium hydride / dichloromethane / -78 °C 3: pyridine 4: pyridinium p-toluenesulfonate / ethanol 5: Cornforth reagent / dichloromethane / Molecular sieve 6: sodium chlorite; sodium dihydrogen phosphate dihydrate; 2-methyl-but-2-ene / tert-butyl alcohol 7: tetrakis(triphenylphosphine) palladium(0) / dichloromethane / 20 h / 20 °C View Scheme