potassium hydroxide in water; ethylene glycol Heating;

1: 85 percent / potassium hydroxide / H2O; ethane-1,2-diol / Heating 2: PCl5 / benzene / 0.5 h / Ambient temperature 3: SnCl4 / benzene / 1.) 0 deg C, 30 min; 2.) rt, 90 min View Scheme