tin(ll) chloride in ethanol Ambient temperatureovernight; also with ZnCl2;

1: 89 percent / 2 h / Heating 2: 69 percent / SnCl2 / ethanol / Ambient temperature; overnight; also with ZnCl2 View Scheme

1: ZnCl2 / ethanol / 2 h / Heating 2: 76 percent / Heating 3: ZnCl2 / ethanol / 6 h / Heating 4: 4-dimethylaminopyridine / pyridine / 12 h / Ambient temperature 5: 69 percent / SnCl2 / ethanol / Ambient temperature; overnight; also with ZnCl2 View Scheme

1: ZnCl2 / ethanol / 6 h / Heating 2: 62 percent / Heating 3: ZnCl2 / ethanol / 2 h / Heating 4: 4-dimethylaminopyridine / pyridine / 12 h / Ambient temperature 5: 69 percent / SnCl2 / ethanol / Ambient temperature; overnight; also with ZnCl2 View Scheme

pyridine Ambient temperature;