Bis(dichloroorganosilyl)alkanes and their preparation methods

Details Bis(dichloroorganosilyl)alkanes and their preparation methods Bis(dichloroorganosilyl)alkanes and their preparation methods

1995-06-23

1996-06-18

Shaver, Paul F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Silicon containing

556435, 556415, C07F 708

Patent

active

055279341

ABSTRACT:
This invention relates to bis(dichloroorganosilyl)alkenes represented by the formula III and a process for the preparation of the compounds of formula III which comprises hydrosilylating bis(dichlorosilyl)methanes of formula I with organoolefins or organosilylolefins of formula II in the presence of chloroplatinic acid catalyst; ##STR1## wherein R.sup.1 and R.sup.2 are same or different and can be --(CH.sub.2).sub.2 R.sup.3 (wherein R.sup.3 represents Ph, --CH.sub.2 Cl, --(CH.sub.2).sub.y CH.sub.3 (y=0-15), --CF.sub.3, --CH.sub.2 CF.sub.3, --SiMe.sub.m Cl.sub.3-m (m=0-3), --CN, --CH.sub.2 CN, --(p-Ph)CH.sub.2 Cl or 3-cyclohexenyl group) or (X--Ph)CH(CH.sub.3)CH.sub.2 -- (wherein X represents hydrogen, C.sub.1 -C.sub.4 alkyl, phenyl, fluoro, chloro or bromo group); or R.sup.1 is --CH.sub.3 or --(CH.sub.2).sub.2 R.sup.3 (wherein R.sup.3 is same as defined above) and R.sup.2 is (X--Ph)CH(CH.sub.3)CH.sub.2 -- (wherein X is same as defined above); A is --(CH.sub.2).sub.n -- (n=1, 2, 3, 6, 8), or --(CH.sub.2).sub.2 Ph(CH.sub.2).sub.2 --; Q represents --SiHCl.sub.2 or ##STR2## X represents hydrogen, C.sub.1 -C.sub.4 alkyl, phenyl, fluoro, chloro or bromo group; P can be R.sup.3, --CH.sub.2 -- SiCl.sub.2 --(CH.sub.2).sub.2 --R.sup.3, --B--SiCl.sub.2 CH.sub.3, or D--CH.dbd.CH.sub.2, wherein R.sup.3 is Ph, --CH.sub.2 Cl, --(CH.sub.2).sub.y CH.sub.3 (y=0-15), --CF.sub.3, --CH.sub.2 CF.sub.3, --SiMe.sub.m Cl.sub.3-m (m=0-3), --CN, --CH.sub.2 CN, --(p-Ph)--CH.sub.2 Cl or 3-cyclohexenyl group (B can be --(CH.sub.2).sub.n --(wherin n=4 or 6) or --Ph(CH.sub.2).sub.2 -- and D can be --(CH.sub.2).sub.2 -- or --Ph--).

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