Abstract: The present invention relates to a process for preparation of silane compound represented by general formula (I) of which one or two hydrogens have been substituted, comprising a reaction of silane compound represented by general formula (II) with trichlorosilane in the presence of metal or metal compound as a catalyst. ##STR1## whereby, R.sup.1, R.sup.2 and R.sup.3 respectively represent chlorine or methyl group, and Z and Z' respectively represent hydrogen or chlorine, and as a result, the process of the present invention is industrially useful because trichlorosilane having relatively low price is employed.

Abstract: There is an olefin catalyst system containing a Zielger-Natta catalyst with as an electron donor, an organosilane compound as represented by the formula (I); ##STR1## wherein R.sub.1 is trimethylsilylmethyl or 2-phenylpropyl; R.sub.2 is cyclopenty or cyclohexyl; and R.sub.3 is C.sub.1 -C.sub.3 alkyl.

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.

Abstract: The present invention relates to (2-arylpropyl)silanes represented by the formula (III) and a process for the preparation of the formula (III) by the Friedel-Crafts alkylation of various substituted aromatic compounds represented by the formula (I) with allylchlorosilanes as represented by the formula (II) in the presence of Lewis acid catalysts such as aluminum chloride. ##STR1## In the formulas (I) and (III), R and R' represent independently hydrogen, alkyl (C.sub.1 -C.sub.4), phenoxy, fluoro, chloro, bromo, mercapto, mercaptomethyl and Ar represents phenyl ring, naphthalene ring, or biphenyl ring. X.sup.1, X.sup.2, and X.sup.3 represent hydrogen or chloro group; and wherein formula (III) according to the present invention specifically excludes the compounds of the general formula (III) in which X.sup.1, X.sup.2 and X.sup.3 are all chloro group, and R is hydrogen and R' is hydrogen, chloro or bromo, and X.sup.1 is hydrogen and X.sup.2 and X.sup.3 are all chloro, and R and R' are all hydrogen.

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.

Abstract: The novel compounds of 1-aryl-1-[.alpha.-(triazolyl]alkyl]-1-silacycloalkanes of the following formula I and their preparation are provided. The compounds of the present invention are useful in controlling fungal diseases of living plants. ##STR1## wherein R.sub.1 can be 4- or 2,4-substituted phenyl such as 4-fluorophenyl, 4-chlorophenyl, 4-ethoxyphenyl, 4-methoxyphenyl, 4-trifluoromethylphenyl, biphenyl, 2,4-difluorophenyl, and 2,4-dichlorophenyl and R.sub.2 can be hydrogen or methyl and n is 4 or 5.

Abstract: The present invention relates to novel cyclic or linear allylpolysiloxane type silicone fluids having allylalkylsiloxy and diorganosiloxy groups as represented by the formula I and their preparation methods by hydrolyzing mixtures of allyldichlorosilane and diorganodichlorosilane as represented by the formula II and formula III respectively. ##STR1## wherein R is selected from the group consisting of hydrogen alkyl(C.sub.3 -C.sub.20), chloroalkyl, cyanoalkyl, fluoroalkyl, and phenylalkyl group; R.sup.x and R.sup.2 represent independentlhydrogen, methyl or phenyl group; M represents H or SiMe.sub.3 group wherein Me is methyl group and when M is hydrogen, the silanol groups at the both ends of the molecule easily undergo dehydration and cyclize to form the cyclic silicone fluids as represented by the following formula I'; the mixing ratio (x/y) of the compounds as represented in formula I and formula HI respectively can be 1:0.01-1:100; CH.sub.2 CH.sub.2 R.sup.3 of formula II equals to R of formula I or I'.

Abstract: The present invention relates to novel cyclic or linear 2-(aryl)propylalkylpolysiloxane type silicone fluids as represented by the formula I and their preparation methods by hydrolyzing mixtures of 2-(aryl)propylalkyldichlorosilane and diorganodichlorosilane as represented by the formula II and formula III respectively. ##STR1## wherein, X.sub.1 and X.sub.2 represent independently hydrogen or alkyl(C.sub.1 -C.sub.3), phenyl, phenoxy, fluoro, chloro, bromo, mercapto, mercaptomethyl group; R.sup.2 and R.sup.3 represent independently methyl or phenyl group; R.sup.1 in the formula I is same as CH.sub.2 CH.sub.2 R in formula II or cyclohexyl wherein R is C.sub.n H.sub.2n+2 (n=1-16), chloromethylene, cyanomethylene, phenyl, or cyano group; M represents H or SiMe.sub.3 group wherein Me is methyl group and when M is hydrogen, the silanol groups at the both ends of the molecule easily undergo dehydration and cyclize to form the cyclic silicone fluids; n and m can be 2-200 and the ratio n/m can be 1:0.01-1:100.

Abstract: The present invention relates to allylakylsilanes represented by the general formula (III) and their preparation methods by reacting allylsilanes represented by the formula I with olefin compounds represented by the formula II in the presence of hydrosilation catalysts such as chloroplatinic acid, platinum on silica, tributyl amine and Pd, Rh, Ni metals. ##STR1## wherein X represents independently chloro or alkoxy (C.sub.1-C.sub.4) and R is selected from the group consisting of Ph, CH.sub.2 Cl, C.sub.n H.sub.2n CH.sub.3 (n=0-15), Si(Me).sub.m Cl.sub.3-m (m=0-3), CF.sub.3, CH.sub.2 CF.sub.3, CN, CH.sub.2 CN, ##STR2## CH.sub.2 Si(Me).sub.m CL.sub.3-m (m=0-3), Si(Me).sub.m (OR.sup.1).sub.3-m (m=0-3), CH.sub.2 Si(Me).sub.m (OR.sup.1).sub.3-m (m=0-3), (wherein Me is methyl and R.sup.1 is methoxy or ethoxy group), Ph-CH.sub.2 Cl, and cyclohexenyl group.

Abstract: The present invention relates to novel 2-(aryl)hydrogenpolysiloxane type silicone fluids as represented by the formula I and their preparation methods by hydrolyzing mixtures of 2-(aryl)hydrogendichlorosilane and diorganodichlorosilane as represented by the formula II and formula III respectively. ##STR1## wherein X.sup.1 and X.sup.2 represent independent hydrogen or alkyl (C.sub.1 -C.sub.3), phenyl, phenoxy, fluoro, chloro, bromo, mercapto, mercaptomethyl group; R.sup.1 and R.sup.2 represent independently methyl or phenyl group; M represents H or SiMe.sub.3 group wherein Me represents methyl and when M is hydrogen, the silanol groups at the both ends of the molecule easily undergo dehydration so that they can cyclize to form the cyclic silicone fluids. The mixing ratio (x/y) of the compounds as represented in formula II and formula III respectively can be 1:0.01-1:100.

Abstract: The present invention relates to a process for preparing tris(silyl)methanes by directly reacting a mixture of .alpha.-dichloromethylsilanes represented in formula I and hydrogen chloride or alkyl chlorides represented in formula II, with silicon metal to give the tris(silyl)methanes having two dichlorosily groups (formula III), the tris(silyl)methanes having one trichlorosilyl group and one dichlorosilyl group (formula IV), and the tris(silyl)metranes having two trichlorosilyl groups (formula V) in moderately high yields in the presence of copper catalyst at a temperature from 250.degree. C. to 350.degree. C. ##STR1## Wherein R represents hydrogen, alkyl(C.sub.1 -C.sub.4), or CH.sub.2 CH.sub.2 Cl, and R.sub.1, R.sub.2, and R.sub.3 represent independently hydrogen or chloride.

Abstract: The present invention relates to trissilylalkanes represented by formula (X), (XI), (XII), (XIII), (XIV), (XV), (XVI) and (XVII), and preparation methods thereof. ##STR1## wherein X can be Cl, OR.sup.1 (R.sup.1 =C.sub.1 -C.sub.4 alkyl) or OAc, and R.sup.2 can be Ph, CH.sub.2 Cl, C.sub.n H.sub.2n CH.sub.3 (n=0-15), Si(Me).sub.m Cl.sub.3-m, (m=0-3), CF.sub.3, CN, CH.sub.2 CN, CH.dbd.CH.sub.2, (CH.sub.2).sub.4 CH.dbd.CH.sub.2, ##STR2## Ph-CH.sub.2 Cl or cyclohex-3-enyl group.

Abstract: 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.

Abstract: Alkenylchlorosilane of formula I and a direct synthesis thereof are disclosed, wherein silicon metal is reacted with mixed gas comprising alkenyl chloride of formula II and hydrogen chloride or alkyl chloride of formula III in the presence of copper catalyst at a temperature range from 220.degree. C. to 350.degree. C. ##STR1## In formula I, R.sub.1 represents hydrogen, methyl, SiHCl.sub.2, SiCl.sub.3 or CH.sub.2 SiCl.sub.3 and R.sub.2 represents hydrogen or chlorine. ##STR2## In formula II, R.sub.3 represents hydrogen or chlorine and R.sub.2 represents hydrogen, methyl or CH.sub.2 Cl.Cl--R.sub.5 (III)In formula III, R.sub.5 represents hydrogen, C.sub.1 -C.sub.4 alkyl or CH.sub.2 CH.sub.2 Cl.

Abstract: The present invention relates to a process for preparing tris(silyl)alkanes comprising directly reaction a mixture of organic compounds having a trichloromethyl group represented by formula I and hydrogen chloride or alkyl chlorides represented by formula II, with metallic silicon to give the tris(silyl)alkanes represented by formula III, IV, V and VI: ##STR1## wherein R represent independently hydrogen or methyl and R' represents hydrogen, alkyl(C.sub.1 -C.sub.4), or CH.sub.2 CH.sub.2 Cl.

Abstract: Bis(silyl)alkanes represented by the formulas (III), (IV) and (V) ##STR1## wherein R is H or phenyl, R' is a hydrogen atom or C.sub.1-4 alkyl and n is an integer ranging from 1 to 4. The present invention also provides a method for preparation of the bis(silyl)alkanes comprising the steps of mixing an organic compound, which is represented by the formula (I) and has a chloro at each side of its molecule, with a hydrogen chloride or an organic chloride represented by the formula (II), the organic chloride being capable of generating the hydrogen chloride during its reaction, in order to provide a mixture and directly reacting this mixture with a metal silicon at a reaction temperature of 260.degree. C.-370.degree. C. in the presence of a copper catalyst.

Abstract: The present invention relates to bis(silyl)methanes and their preparation methods in high hields by directly reacting .alpha.-chloromethylsilanes represented by formula I incorporated with hydrogen chloride or alkylchlorides represented by the general formula II, with silicon metal to give the bis(silyl)methane compound having dichlorosily group (formula III) as the major products and the bis(silyl)methane compounds having trichlorosilyl group (formula IV) in moderately high yields in the presence of copper catalyst at a temperature from 250.degree. C. to 350.degree. C. The different major product is obtained depending upon the chloride incorporated. n-Butyl chloride, t-butyl chloride, propyl chloride, and hydrogen chloride gave bissilylmethane with hydrogen substituted on the silicon atom as the major product. When 1,2-dichloroethane is incorporated, bis(silyl)methanes having trichlorosilyl group is the major product. ##STR1## In formulae (I), (III), (IV), R.sub.1, R.sub.2, and R.sub.

Abstract: There is disclosed a redistribution catalyst which is the reaction product of a quaternary ammonium halide salt or tertiary amine, and an inorganic carrier having surface hydroxyl groups, such as silica, zeolite, clays, and silicone resins. The catalyst is useful for the redistribution of chlorosilicon hydrides to dichlorosilane and silane at reaction conditions of a temperature from 0.degree. to about 200.degree. C., and a pressure from about 0.1 to 10 atmospheres, in liquid or vapor phase.

Abstract: There is disclosed a redistribution catalyst which is the reaction product of a quaternary ammonium halide salt or tertiary amine, and an inorganic carrier having surface hydroxyl groups, such as silica, zeolite, clays, and silicone resins. The catalyst is useful for the disproportionation of chlorosilicon hydrides to dichlorosilane and silane at reaction conditions including a temperature from 0.degree. to 200.degree. C., in liquid or vapor phase with a pressure from 0.1 to 10 atmospheres.