The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 04, 1996
Filed:
Jun. 23, 1995
Korea Institute of Science and Technology, Seoul, KR;
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.