Oxidative coupling with methyl-substituted benzenes

Details Oxidative coupling with methyl-substituted benzenes Oxidative coupling with methyl-substituted benzenes

1986-09-12

1988-02-23

Davis, Curtis R.

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By condensation of entire cyclic molecules or entire...

585426, C07C 272

Patent

active

047272082

ABSTRACT:
The invention, in one aspect, is a process for preparing a (methyl-substituted)diphenyl methane by coupling at least (including benzene) a methyl-substituted benzene into the (methyl-substituted)diphenyl methane comprising contacting at least the methyl-substituted benzene with a solid heterogeneous reactant-catalyst having labile oxygen under conditions whereby the (methyl-substituted)diphenyl methane is prepared. For example, using molybdenum trioxide or vanadium pentoxide, toluene can be coupled in the vapor or liquid phase to prepare (2-methylphenyl)phenylmethane. By-product formation, especially formation of carbon dioxide, can be very low.

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Chem. Abs., 97(15):126,725m, abstracting Madhock et al.
Indian J. Technol., 20(50), 184-89 (1982).
Andersson, J. Catal., 98, 138 (1986).

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