1: 27 percent / lead tetra-acetate / pyridine / 16 h / Ambient temperature 2: 17 g / ammonium chloride / diethyl ether; H2O / 1.) 0 deg C, 4 h; 2.) 50 deg C, 7.5 h 3: 12M aq. hydrochloric acid / 1.) 64 h, room temperature; 2.) 30 h, reflux temperature View Scheme

1: 17 g / ammonium chloride / diethyl ether; H2O / 1.) 0 deg C, 4 h; 2.) 50 deg C, 7.5 h 2: 12M aq. hydrochloric acid / 1.) 64 h, room temperature; 2.) 30 h, reflux temperature View Scheme

hydrogenchloride 1.) 64 h, room temperature; 2.) 30 h, reflux temperature; Yield given;