Photoinduced Decomposition of Peracetic Acid in Isopropylbenzene

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Abstract
Irradiation of peracetic acid in isopropylbenzene with 254 nm and over 290 nm lights gave as aromatic products mainly t-butylbenzene, 2-phenyl-2-propanol, and 2,3-dimethyl-2,3-diphenylbutane. The yield of t-butylbenzene was higher in 254 nm photolysis than that with >290 nm, while the yield of hydroxylated aromatics, i. e., 2-phenyl-2-propanol, was much higher with >290 nm than that with 254 nm. The distribution of products was little affected by the intensity of light. These results are discussed by a mechanism involving radicals of different reactivity derived from peracetic acid decomposition.

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