Thermolysis and photolysis of 3, 3: 4, 4-dibutano-1, 2-dioxetane

KR Kopecky, JA Lopez Sastre

文献索引：Kopecky, Karl R.; Sastre, Juan A. Lopez Canadian Journal of Chemistry, 1980 , vol. 58, # 19 p. 2089 - 2092

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被引用次数: 10

摘要

Thermolysis of 5× 10-3 M 3, 3: 4, 4-dibutano-1, 2-dioxetane 2, E a= 25.3±0.3 kcal/mol, Δ S≠= 0±2 eu, in degassed decane solution at 42° C produced a 300: 1 ratio of cyclopentanone 3: 4-pentenal, 4. From the quantum yield of photolysis of 3 to 4, determined to be 0.27 using 313 nm light, it is calculated that 2.5% excited 3 is formed on thermolysis of 2. Photolysis of (> 380 nm) 5× 10-4 M 2 produces a 54: 1 ratio of 3: 4 corresponding to a ...