hydrogenchloride; lithium hydroxide in water; acetone 1.5 h; Heating;

1: 83 percent / 1.) LiOH; 2.) HCl / acetone; H2O / 1.5 h / Heating 2: 82 percent / 1.) 1,1'-carbonyldiimidazole / CH2Cl2 / 1.) 0 deg C, 45 min; 2.) 0 deg C to RT, 14 h View Scheme