1: 1.) N,N'-dicyclohexylcarbodiimide, CuCl / 1.) benzene, 55 deg C, 23 h; 2.) benzene, 85 deg C, 21 h 2: decahydronaphthalene / 14 h / 180 °C View Scheme

1: 1.) N,N'-dicyclohexylcarbodiimide, CuCl / 1.) benzene, 55 deg C, 23 h; 2.) benzene, 85 deg C, 21 h 2: decahydronaphthalene / 14 h / 180 °C View Scheme

1: 1.) N,N'-dicyclohexylcarbodiimide, CuCl / 1.) benzene, 55 deg C, 23 h; 2.) benzene, 85 deg C, 21 h 2: decahydronaphthalene / 14 h / 180 °C 3: 95 percent / bromine / CCl4 / 2 h / 0 °C View Scheme