申请人:Korea Institute of Science and Technology
公开号:US05386050A1
公开(公告)日:1995-01-31
The present invention relates to a process for preparing (2-arylpropyl)alkylsilanes represented by the formula III by reacting (2-arylpropyl)silanes represented by the formula I with olefin compounds represented by the formula II in the presence of hydrosilation catalysts such as chloroplatanic acid, platinum on silica, tributylamine and Pd, Rh, Ni metals. ##STR1## Olefin compounds(cyclohexene or CH.sub.2 =CH--R.sup.3) (II) ##STR2## In the formulas (I) and (III), R.sup.1 and R.sup.2 represent independently hydrogen, alkyl(C.sub.1 -C.sub.4), fluoro, chloro or bromo; and Ar represents phenyl ring, naphthalene ring, or biphenyl ring. X represents hydrogen or chloro group. In the formula (III), R represents --(CH.sub.2 CH.sub.2)--R.sup.3, sec-butyl, or cyclohexyl wherein R.sup.3 =Ph, CH.sub.2 Cl, C.sub.n H.sub.2n CH.sub.3 (n=0-15), CH.sub.2 Si(Me).sub.m Cl.sub.3-m (m=O-3), (CH.sub.2).sub.2 Si(Me).sub.m (OMe).sub.3-m (m=O-3), (CH.sub.2).sub.3 Si(Me).sub.m (OMe).sub.3-m (m=O-3), Si(Me).sub.m Cl.sub.3-m (m=0-3), CF.sub.3, CN, CH.sub.2 CN, ##STR3## CH.dbd.CH.sub.2, (CH.sub.2 ).sub.4 CH.dbd.CH.sub.2, ##STR4## or Ph--CH.sub.2 Cl.
本发明涉及一种制备式III的(2-芳基丙基)烷基
硅烷的方法,通过在氢
硅化催化剂(如
氯铂酸、
二氧化硅上的
铂、
三丁基胺和Pd、Rh、Ni
金属)的存在下,将式I表示的(2-芳基丙基)
硅烷与式II表示的烯烃化合物反应而得到。其中,烯烃化合物(
环己烯或
CH2=CH-R3)(II)。在式(I)和式(III)中,R1和R2分别表示氢、烷基(C1-C4)、
氟、
氯或
溴;Ar表示苯环、
萘环或
联苯环。X表示氢或
氯基。在式(III)中,R表示--( )-R3、仲丁基或环己基,其中R3=苯基、 Cl、CnH2nCH3(n=0-15)、 Si(Me)mCl3-m(m=0-3)、( )2Si(Me)m(OMe)3-m(m=0-3)、( )3Si(Me)m(OMe)3-m(m=0-3)、Si(Me)mCl3-m(m=0-3)、
CF3、CN、 CN、( )4CH= 、( )3C≡C、或Ph- Cl。