Experimental Hydrogenation of the Stilbazole Methiodides.-The pure stilbazole methiodide (0.02-0.05 M) was dissolved or sus-pended in absolute methanol (50-100 cc.), approximately 0.2 g. of A dam catalyst was added, and the hydrogenation was carried out in a Burgess-Parr catalytic hydrogenation apparatus with shaking at two to three atmospheres overpressure of hydrogen. Hydrogen uptake proceeded rapidly (usually complete in one ...
