Provided is a method for producing (alkyl)arene compounds represented by Formulae 3-1, 3-2, and 3-3 by the Friedel-Crafts alkylation reaction of alkyl halide compounds and arene compounds using organic phosphine compounds as a catalyst. ##STR00001##

A method for preparation of an organohalosilane represented by formula I is disclosed. The method comprises: contacting an alcohol with metal sodium to yield a sodium alcoholate; contacting the sodium alcoholate with a halogen silane compound for an etherification reaction; and adding dropwise a fluorinating agent for a fluorination reaction. The organohalosilane is used for preparation of an electrolyte solution of a non-aqueous lithium ion battery.

A process for removing metallic impurities from halogenated silicon compounds, such as chlorosilane monomers and/or chlorinated polysilanes is disclosed. The process involves treating a halogenated silicon compound with a tertiary amine and thereafter a suitable grade of activated carbon.

Provided is a method for producing (alkyl)arene compounds represented by Formulae 3-1, 3-2, and 3-3 by the Friedel-Crafts alkylation reaction of alkyl halide compounds and arene compounds using organic phosphine compounds as a catalyst.

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Provided is a production method for producing an aromatic alkoxysilane containing a hexafluoropropanol group (C(CF.sub.3).sub.2OH; referred to as HFIP group) from an inexpensive starting raw material with a high reaction conversion rate and selectivity. As shown in the following scheme, the production method includes: a first step of reacting an aromatic halosilane with hexafluoroacetone in the presence of a Lewis acid catalyst, thereby obtaining a HFIP group-containing aromatic halosilane; and a second step of forming the HFIP group-containing aromatic alkoxysilane by reacting the HFIP group-containing aromatic halosilane with an alcohol.

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A halide compound having one or more carbon-carbon unsaturated bonds is catalytically reduced with substantially no dehalogenation to produce a reduced halide compound in which at least one of the one or more unsaturated bonds is reduced. Specifically provided is a method for producing a reduced halide compound including steps of: reacting a nickel compound, a zinc compound, and a borohydride compound in a solvent to obtain a reduction catalyst; and subjecting a halide compound having one or more carbon-carbon unsaturated bonds to catalytic reduction in the presence of the reduction catalyst to reduce at least one of the one or more carbon-carbon unsaturated bonds to thereby obtain a reduced halide compound.

A halide compound having one or more carbon-carbon unsaturated bonds is catalytically reduced with substantially no dehalogenation to produce a reduced halide compound in which at least one of the one or more unsaturated bonds is reduced. Specifically provided is a method for producing a reduced halide compound including steps of: reacting a nickel compound, a zinc compound, and a borohydride compound in a solvent to obtain a reduction catalyst; and subjecting a halide compound having one or more carbon-carbon unsaturated bonds to catalytic reduction in the presence of the reduction catalyst to reduce at least one of the one or more carbon-carbon unsaturated bonds to thereby obtain a reduced halide compound.

A process for removing metallic impurities from halogenated silicon compounds, such as chlorosilane monomers and/or chlorinated polysilanes is disclosed. The process involves treating a halogenated silicon compound with a tertiary amine and thereafter a suitable grade of activated carbon.

Various embodiments disclosed relate to a method of preparing aryl fluorinated ether compounds. The method involves contacting an aryl halide with a fluorinated alcohol in the presence of a photocatalyst, a base, and irradiation with electromagnetic radiation comprising a wavelength between about 200 nm and about 800 nm. The present invention also provides a method of late-stage photochemical modification of a biologically active compound, such as drugs or agrochemicals. Fluorinated derivatives of griseofulvin, clofibrate, and 2,4-D methyl ester are described herein.