Bis(silylpropyl)arenes and their preparation methods

Details Bis(silylpropyl)arenes and their preparation methods Bis(silylpropyl)arenes and their preparation methods

1995-06-23

1996-06-04

Shaver, Paul F.

Perfume compositions

Perfume compositions

Ring containing active ingredient

556415, C07F 708, C07F 716, C07F 710

Patent

active

055234445

ABSTRACT:
The present invention relates to bis(silylpropyl)arenes represented by the formula I and their preparation methods by reacting aromatic compounds represented by the formula II or III with allylchlorosilanes represented by the formula IV in the presence of Lewis acid catalysts such as aluminum chloride: ##STR1## wherein R.sup.1 and R.sup.2 which may be the same or different represent hydrogen, chloro or --(CH.sub.2 CH.sub.2)--R.sup.3 (wherein R.sup.3 is Ph, CH.sub.2 Cl, C.sub.n H.sub.2n CH.sub.3 (n=0-15), CF.sub.3, CH.sub.2 CF.sub.3, Si(Me).sub.m Cl.sub.3-m (m=0-3), CN, CH.sub.2 CN, (p--Ph)--CH.sub.2 Cl or 3-cyclohexenyl group); Ar represents phenyl ring, phenoxyphenyl ring, or biphenyl ring; X.sup.1 represents hydrogen or methyl; and X.sup.2 represents hydrogen, alkyl(C.sub.1 -C.sub.4), fluoro, chloro, bromo, phenyl or phenoxy group.

REFERENCES:
patent: 3304320 (1967-02-01), Spencer
patent: 4647682 (1987-03-01), Panster et al.
patent: 4861901 (1989-08-01), Lau et al.
patent: 4902368 (1990-02-01), Oldham
patent: 5338876 (1994-08-01), Jung et al.
patent: 5386050 (1995-01-01), Jung et al.
N. S. Nametkin, V. M. Vdovin, E. S. Finkelshtein, V. D. Oppengeium, and N. A. Chekalina. "Alkylation of Aromatic Compounds by Allylsilane Chlorides", 1966.

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