Preparation of diarylethanes

Details Preparation of diarylethanes Preparation of diarylethanes

1996-04-26

1999-08-17

Wood, Elizabeth D.

Chemistry of hydrocarbon compounds

Compound or reaction product mixture

Aromatic

585 20, 585 21, 585 23, 585 24, 585422, 585426, C07C 1512, C07C 1516, C07C 208, C07C 212

Patent

active

059395958

ABSTRACT:
A process for preparing diarylethanes of the general formula I ##STR1## where R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are each hydrogen or C.sub.1 -C.sub.8 -alkyl, by reacting aromatic compounds of the general formula II ##STR2## where R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 have the abovementioned meanings, with styrenes of the general formula III ##STR3## where R.sup.1 has the abovementioned meanings, at from -20 to 300.degree. C. under from 1 to 100 bar in the presence of heterogeneous catalysts, wherein beta-zeolites or mordenites are used as heterogeneous catalysts.

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patent: 5068482 (1991-11-01), Akatsu et al.
patent: 5453555 (1995-09-01), Chang et al.
Hasegawa & Higashimura, "Selective Alkylation of Aromatic Hydrocarbons with Styrene by Solid Polymeric Oxo Acids.", Polymer Journal, vol. 12, No. 6, p. 407 (1980) No Month Available.

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