mercury dichloride; mercury(II) oxide in methanol; water 4 h; Heating;

chromium dichloride; water-d2; lithium chloride in N,N-dimethyl acetamide T=100°C; 4 h;

chromium dichloride; water; lithium chloride in N,N-dimethyl acetamide T=100°C; 4 h;

1: 75 percent / BF3*Et2O / CH2Cl2 / 0 degC, 1 h then 25 degC, 18 h 2: 84 percent / n-butyllithium, deuterium oxide / tetrahydrofuran; hexane / -50 degC, 6 h then allowed to warm to 25 degC 3: 71 percent / mercuric oxide, mercuric chloride / methanol; H2O / 4 h / Heating View Scheme

1: 84 percent / n-butyllithium, deuterium oxide / tetrahydrofuran; hexane / -50 degC, 6 h then allowed to warm to 25 degC 2: 71 percent / mercuric oxide, mercuric chloride / methanol; H2O / 4 h / Heating View Scheme