Results Exploratory Photochemistry. Exploratory photochemical studies were conducted with l-methyl-2-phenyl-1-pyrrolinium perchlorate (4) 5 and a series of known (5-824) or easily prepared (9 and 10; see Experimental Section) allylsilanes in order to determine if the reasoning presented above is correct. Irradiation of a solution of 4 (0.01 M) and allylsilane 5 (0.88 M) in methanol y 3