Synthesis and properties of di- and tri-phenylalkanes and their hydrogenation products of composition C23-C27
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4-Hexyl-1,7-diphenylheptane, 4-cyclohexyl-1,7-diphenylheptane, 1,1-dicyclohexyl-1-phenylheptane, and 1,1-dicyclohexyl-2-methyl-1-phenyloctane were prepared for the first time. The freezing points and viscosity properties of these hydrocarbons were determined.
In the hydrogenation of alkyltriphenylmethanes over nickel catalysts the following are formed: alkyldicyclohexylphenylmethanes and alkyltricyclohexylmethanes, which may be separated by fractional distillation and chromatography.
The selective hydrogenation of alkyltriphenylmethanes into hydrocarbons of the series (C6H11)2(C6H5)CR may be carried out, under optimum conditions, in yields of up to 50%, which makes this method interesting from the preparative point of view.
KeywordsHydrogenation Viscosity Chromatography Nickel Hydrocarbon
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