The Journal of Organic Chemistry

… 3-methylene-1, 4-cyclohexadiene (p-isotoluene), 5-methylene-1, 3-cyclohexadiene (o-isotoluene), 1-methylene-1, 4-dihydronaphthalene (benzo-p-isotoluene), and 9 …

JJ Gajewski, AM Gortva

文献索引：Gajewski, Joseph J.; Gortva, Andrea M. Journal of Organic Chemistry, 1989 , vol. 54, # 2 p. 373 - 378

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被引用次数: 19

摘要

3-Methylene-l, 4-~ yclohexadiene, 1, 5-methylene-1, 3-cyclohexadiene, 2, l-methylene-1, 4- dihydronaphthalene, 5, and 9-methylene-9, 10-dihydroanthracene, 8, react with second- order kinetics in benzene solution. The activation parameters for the reaction of 1, 5, and 8, especially the frequency factor, suggest a nonconcerted reaction with little orientational demand in the transition state. The frequency factor for the reaction of 2 suggests a ...