sulfuric acid; acetic acid

1: 2-cyclohexyl-1,1-dimethoxyethane With bromine in dichloromethane T=25 - 30°C; Bromination; 2: methanol alcoholysis; 0.05 h; Further stages.;

1.1: Br2 / CH2Cl2 / 25 - 30 °C 1.2: 94 percent Spectr. / 0.05 h 2.1: 88 percent / K2CO3; N2H4*H2O / dimethylsulfoxide / 7 h / 70 °C 3.1: 30percent H2O2; Et3N / tetrahydrofuran / 5 h / 20 °C 3.2: 78 percent / oxalic acid / acetone; H2O / 1 h / 20 °C View Scheme