6, 12 R= CH3CH2 under a constant stream of oxygen led to the formation of imides 7-1L3t4 Although the yields of these reactions were not maximized, Table I shows the quantity of each imide formed after 48 h of irradiation. Product isolation was accomplished by preparative GLC, and structures were rigorously confirmed by direct comparison of their spectroscopic properties with authentic samples. hv r (C H2in
