C. Dimitrov, P. Ignatiev
Feb 1, 1967
Citations
0
Influential Citations
1
Citations
Journal
Journal of Catalysis
Abstract
Abstract An investigation was undertaken into the catalytic conversions of 3-phenylpentane on a silica-alumina catalyst in the temperature interval of 410 ° to 490 °C and at space velocities of 0.86 to 3.23 hr −1 . It was established that the reactions of dealkylation, fragmentation, and dehydrocyclization take place under the conditions investigated, and an assumption is stated relative to the mechanisms of these reactions. A carbonium ion with a positive charge in the nucleus is formed as an intermediate product of dealkylation, a carbonium ion with a positive charge in the side chain being formed upon fragmentation and dehydrocyclization. Dehydrocyclization is accompanied by the formation of the pentacyclic ring of α-ethylindane which, under the conditions of the process, is isomerized to β-methyl-1,2,3,4-tetrahydronaphthalene and, following the latter's dehydrogenation, is converted into β-methylnaphthalene.