“…On the other hand, irradiation of 1,1-diiodo-2,2-dimethylpropane ( 4 ) affords 1-iodo-2,2-dimethylpropane ( 5 ) in cyclohexane, 1,1-dimethoxy-2,2-dimethylpropane ( 6 ) in methanol, and 2-methyl-2-butene ( 7 ) in 1,2-dichloroethane (Scheme ). , While product 5 could be explained through the intermediacy of an α-iodo radical, the formation of 6 and 7 could involve a iodocationic intermediate. However, attempts to achieve cyclopropanation of olefins failed.…”