Dimethylindene, cyclization

Dimethyl ether, 31 41, 244 formation in zeolites, 42 95-98 Dimethylethylbenzenes, 20 281 Dimethylindan, cyclization, 28 298, 299 Dimethylindene, cyclization, 28 298, 299 Dimethyl methyl phosphonate, catalytic decomposition, 35 159-160 Dimethylnaphthalenes, hydrogenation of, 18 64-102... 

The primary products of the cyclization of 2-phenylpentane are cis- and /ra j-l,3-dimethylindans, 1,3-dimethylindene, and 1-methylnaphthalene ... 

A similar reactivity order was found recently for competition between intramolecular cyclization and intermolecular capture. The AgBF4-assisted solvolysis of trimesityl vinyl chloride 21 in alcohols gives both the ether 23 and 2,3-dimesityl-4,6-dimethylindene, 24 (equation 11 Mes = 2,4,6-Me3C6H2) (80). These compounds are derived from the trimesitylvinyl cation... 

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