Abstract: Provided are a saturated N-heterocyclic carbene-ligand metal complex derivative, a method for preparing the same, and a method for preparing a silane compound by hydrosilylation using the same as a catalyst. To describe in more detail, the metal complex derivative has a saturated N-heterocyclic carbene derivative and an olefin ligand at the same time. A silane compound is prepared by hydrosilylation in the presence of the metal complex derivative as a catalyst. The provided metal complex derivative of the present invention has superior stability during hydrosilylation reaction and is capable of effectively performing the hydrosilylation reaction at low temperature even with small quantity. Further, a product with superior regioselectivity may be obtained. In addition, after the hydrosilylation reaction is completed, the metal complex derivative may be recovered and recycled.

Abstract: Provided is a method of preparing allylchlorosilane, and more particularly, a method of preparing allylchlorosilane with high yield by Si—C coupling reaction of an allyl chloride derivativce with a hydrosilane derivative under specific reaction conditions without using a catalyst.

Abstract: Provided are a functional reinforcing filler and a method of preparing the same, and more particularly, a functional reinforcing filler including inorganic particles having a surface modified by an organic silanepolyol obtained by hydrolyzing an organic alkoxysilane compound and a method of preparing the sane. The functional reinforcing filler has hydrophobicity and reactivity. If the functional reinforcing filler is used to prepare rubber, a coupling agent is not required, and the rubber does not emit volatile organic compounds (VOCs). In particular, a tire prepared using the functional reinforcing filler may have low rolling resistance and excellent wet traction.

Abstract: Disclosed herein are a surface modifier for metal oxide particles and a method of modifying the surface of metal oxide particles using the same. The surface modifier consists either of an alkylsilanepolyol containing a cyclic alkyl group capable of imparting steric hindrance or of a mixture of said alkylsilanepolyol with alkylalkoxysilane, and the method of modifying the surface of metal oxide particles comprises coating the surface modifier on the hydrophilic surface of the metal oxide particles through chemical bonding so as to impart hydrophobicity or amphiphilicity (hydrophilicity and hydrophobicity) and reactivity to the surface of the metal oxide particles.

Abstract: The present invention relates to (2-cyclopentenyl)chlorosilane derivatives and the preparation method thereof. In particular, it relates to a very economical process which reacts cyclopentadiene, which is formed by a cracking of industrially produced low-priced dicyclopentadiene, with a silane compound containing silicon-hydrogen bonds at elevated temperature in a hydrocarbon compound with a boiling point of a predetermined range, thus also enabling to prevent problematic production of dicyclopentadiene polymer by using the hydrocarbon compound. Further, in the presence of a group 10 metal compound catalyst, the process herein is capable of lowering the reaction temperature and increasing the yield in the reaction of sterically hindered alkyl-dichlorosilane. The (2-cyclopentenyl)chlorosilane may be useful in preparing an organic silicon compound containing an unsaturated group or a functional silicone polymer using the same, or in modifying the surface or manufacturing a thin layer.

Abstract: The present invention relates to a ?-[2-(polyalkyleneoxy)ethylthio]alkylalkoxysilane derivative and a preparation method thereof, more particularly to a ?-[2-(polyalkyleneoxy)ethylthio]alkylalkoxysilane derivative prepared by transforming a (?-mercaptoalkyl)alkylalkoxysilane compound into a ?-(alkoxysilyl)alkylthiolate metal salt by treating it with a metallic base and performing dehalometallation at low reaction temperature using a poly(alkyleneoxy)alkyl ether halide or a poly(alkyleneoxy)bis(haloalkyl) ether to form a carbon-sulfur bond and a preparation method thereof. The novel compound of the present invention has not only a Si—OR bond but also contains a sulfur atom in the molecule, so that it can be used as monomer for synthesizing hydrophilic functional silicon polymers, source material of silicon-based surfactants and surface modifier of organic/inorganic materials.

Abstract: The present invention relates to (2-cyclopentenyl)chlorosilane derivatives and the preparation method thereof. In particular, it relates to a very economical process which reacts cyclopentadiene, which is formed by a cracking of industrially produced low-priced dicyclopentadiene, with a silane compound containing silicon-hydrogen bonds at elevated temperature in a hydrocarbon compound with a boiling point of a predetermined range, thus also enabling to prevent problematic production of dicyclopentadiene polymer by using the hydrocarbon compound. Further, in the presence of a group 10 metal compound catalyst, the process herein is capable of lowering the reaction temperature and increasing the yield in the reaction of sterically hindered alkyl-dichlorosilane. The (2-cyclopentenyl)chlorosilane may be useful in preparing an organic silicon compound containing an unsaturated group or a functional silicone polymer using the same, or in modifying the surface or manufacturing a thin layer.

Abstract: This invention relates to (organothiomethyl)chlorosilanes and methods for their preparation by the dehydrohalogenative Si—C coupling reaction of oranothiomethyl halides with Si—H containing chlorosilanes (hydrosilanes), wherein a mixture of oranothiomethyl halide and hydrosilane is heated in the presence of tertiary amine or organic salts (quaternary organoammonium and organophosphonium halides to give (organothiomethyl)chlorosilanes, which is existing a sulfur atom in alkyl chain, (formula: R2SCH2SiCl2R1) in good yield. wherein R1 represents a hydrogen atom, halogen, or C1–C6 alkyl; R2 is selected from the group consisting of C1–C6 alkyl or an aryl group. Especially, this reaction using organic salt as a catalyst provide better economical matter and yield compared with conventional methods, because only catalytic amount of organic salt is required and the catalyst can be separated from the reaction mixture and recycled easily.

Abstract: A biochip with a radio frequency (RF) identification (ID) chip attached thereto, a hybridization system, and a hybridization management method are provided. Probes used for analyzing living body molecules are highly integrated on a substrate of the biochip, and biochip information including information obtained in the process of combining the living body molecules with the probes of the biochip is recorded in the RF ID tag of the biochip. Accordingly, it is possible to efficiently manage the biochip information using the RF ID tag and to prevent the biochip from being reused.

Abstract: A method for preparing alkyldichlorosilanes having a Si—H bond by directly reacting metallic silicon with a mixture of alkyl chloride and (i) hydrogen chloride, or (ii) an alkyl chloride which can generate hydrogen chloride at a reaction temperature in the presence of copper catalyst.

Abstract: The present invention relates to a process for preparing organosilicon compounds by the silylation of conjugated dienes and more particularly, to the process for preparing organosilicon compounds expressed by the following Formulas 1a and 1b in high yield, comprising the steps of heating trichlorosilane in the presence of quaternary organophosphonium salt catalystto generate dichlorosilylene (:SiCl2); and silylating the result with linear or cyclic conjugated dienes, wherein R1, R2, R3, R4, R5 and R6 are independently a hydrogen atom, a C1-C6 alkyl, phenyl group, or two functional groups among R1, R2, R3, R4, R5 and R6 may be covalently bonded to each other to form a cyclic compound of C4-C8.

Abstract: The present invention provides organosilicon compounds containing two trichlorosilyl groups and their preparation methods. Organosilicon compounds of formula II are prepared by reacting linear chain or cyclic olefins of formula I with trichlorosilane in the presence of quaternary organophosphonium salt as a catalyst.

Abstract: The present invention relates to a process for preparing organosilicon compounds by the silylation of conjugated dienes and more particularly, to the process for preparing organosilicon compounds expressed by the following Formulas 1a and 1b in high yield, comprising the steps of heating trichlorosilane in the presence of quaternary organophosphonium salt catalyst to generate dichlorosilylene (:SiCl2); and silylating the result with linear or cyclic conjugated dienes, 1

Abstract: A method for preparing alkyldichlorosilanes having a Si—H bond by directly reacting metallic silicon with a mixture of alkyl chloride and hydrogen chloride or alkyl chloride which generates hydrogen chloride at a reaction temperature in the presence of copper catalyst.

Abstract: The present invention relates to a process for preparing organochlorosilanes and more particularly, to the process for preparing organochlorosilanes of formula I by a dehydrohalogenative coupling of hydrochlorosilanes of formula II with organic halides of formula III in the presence of quaternary phosphonium salt as a catalyst to provide better economical matter and yield compared with conventional methods, because only catalytic amount of phosphonium chloride is required and the catalyst can be separated from the reaction mixture and recycled easily, 1

Abstract: The present invention relates to a process for preparing organochlorosilanes and more particularly, to the process for preparing organochlorosilanes of R4R3CHSiR1Cl2 (I) by a dehydrohalogenative coupling of hydrochlorosilanes of HSiR1Cl2 (II) with organic halides of R2R3 CHX (III) in the presence of quaternary phosphonium salt as a catalyst to provide better economical matter and yield compared with conventional methods, because only a catalytic amount of phosphonium chloride is required and the catalyst can be separated from the reaction mixture and recycled easily.

Abstract: The present invention relates to methods for making the compounds of formula I which is a dehydrohalogenative coupling of hydrochlorosilanes of formula II with organic halides of formula III in the presence of a Lewis base catalyst. R3CH2SiR1Cl2  (I) HSiR1Cl2  (II) R2CH2X  (III) In formulas I and II, R1 represents a hydrogen, chloro, or methyl; in formula III, X represents a chloro or bromo; in formula III, R2 can be selected from the group consisting of a C1-17 alkyl, a C1-10 fluorinated alkyl with partial or full fluorination, a C1-5 alkenyl groups, a silyl group containing alkyls, (CH2)nSiMe3-mClm wherein n is 0 to 2 and m is 0 to 3, aromatic groups, Ar(R′)1 wherein Ar is C6-14 aromatic hydrocarbon, R′ is a C1-4 alkyl, halogen, alkoxy, or vinyl, and q is 0 to 5, a haloalkyl group, (CH2)pX wherein p is 1 to 9 and X is a chloro or bromo; or an aromatic hydrocarbon, Ar CH2X wherein Ar is C6-14 aromatic hydrocarbon and X is a chloro or bromo.

Abstract: The present invention is organosilicon compounds described by formula (1) ##STR1## and formula (2) ##STR2## were R.sup.1 is selected from the group consisting of hydrogen, dichlorosilyl, trichlorosilyl, methyldichlorosilyl, dimethylchlorosilyl, and trimethylsilyl, each R.sup.2, R.sup.3, and R.sup.4 are independently selected from the group consisting of hydrogen, chlorine, alkoxy radicals comprising 1 to about 12 carbon atoms, aryloxy radicals comprising up to about 12 carbon atoms, aryl radicals comprising up to about 12 carbon atoms, and saturated hydrocarbon radicals comprising 1 to about 12 carbon atoms, and n=2 to 6; and methods for the making of organosilicon compounds described by formulas (1) and (2).

Abstract: Aryl substituted alkylsilanes represented by the formula I and a preparation method thereof by reacting substituted benzenes represented by the formula II with aryl substituted alkylsilanes represented by the formula III in the presence of Lewis acid catalysts such as aluminum chloride: ##STR1## wherein m, p, and q are 0 or 1, respectively; n and y are 0, 1, or 2, respectively; X.sup.1, X.sup.2, X.sup.3, X.sup.4, and X.sup.5 which are same or different represent hydrogen, fluoro, chloro; R represents C.sub.1 -C.sub.12 alkyl group; provided that if n is 0, m is 0 and if n is 1 or 2, at least two of X.sup.1, X.sup.2, X.sup.3, X.sup.4, and X.sup.5 represent chloro or fluoro group.

Abstract: The invention is cyclic organosilicon compounds described by formula ##STR1## and by formula ##STR2## and linear organosilicon compounds by formula ##STR3## and by formula ##STR4## where R.sup.1 is selected from the group consisting of hydrogen, dichlorosilyl, trichlorosilyl, methyldichlorosilyl, dimethylchlorosilyl, and trimethylsilyl, and each R.sup.2 is independently selected from the group consisting of hydrogen, alkyls comprising one to about 6 carbon atoms, and aryls; and methods for making the described cyclic organosilicon compounds and linear organosilicon compounds.