Class 556/476 - Halogenation of silicon-containing compound

Subclass of Class 556 - Organic compounds -- part of the class 532-570 series
Definition: Processes wherein a silicon-containing compound is halogenated.
No. of patents: 34
Last issue date: 06/12/2007

Number	Title	Issue Date
7230147	Process for functionalizing a double bond The invention concerns a method for functionalizing a double bond and, more particularly, a double bond bearing a metalloid atom. Said functionalization is produced by the action of perhalogenated sulphonyl chloride on the carbon bearing sulphur in the presence of a...	06/12/2007
7022867	Silicon compound and method for making the same A silicon compound having a repeating unit represented by the following general formula (1): wherein R is a hydrogen atom, a straight or branched alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted a...	04/04/2006
6897331	Fluorous triphase and other multiphase systems A method of reacting a first non-fluorous compound to produce a second non-fluorous compound includes the steps of: contacting a first non-fluorous phase including the first non-fluorous compound with a first fluorous phase at a first phase interface, the first non-...	05/24/2005
6872845	Process for making haloorganoalkoxysilanes A haloorganoalkoxysilane is prepared by reacting an olefinic halide with an alkoxysilane in which the alkoxy group(s) contain at least two carbon atoms in a reaction medium to which has been added a catalytically effective amount of ruthenium-containing catalyst and...	03/29/2005
6803477	Magnesium mediated preparation of fluorinated alkyl silanes An efficient method is disclosed for the preparation of trifluoromethyl- and difluoromethylsilanes using magnesium metal mediated reductive tri- and difluoromethylation of chlorosilanes with tri- and difluoromethyl sulfides, sulfoxides, and sulfones. One byproduct o...	10/12/2004
6734318	Fluorous triphase and other multiphase systems A method of reacting a first compound to produce a second compound includes the step of contacting a first non-fluorous phase including the first compound with a first fluorous phase at a first phase interface. The first compound distributes between the first fluoro...	05/11/2004
6720440	Process for the chlorination of methylsilanes The invention relates to a process for the chlorination of methylsilanes, which comprises reacting methylsilanes with chlorine in the presence of at least 0.1% by weight of hydrogen chloride, based on the weight of methylsilane of the formula (II), under the action ...	04/13/2004
6051319	Silacyclopentadiene derivatives and an organic electroluminescent element obtained by using the silacyclopentadiene derivative An electroluminescence element (EL) obtained by using a silacyclopentadiene derivation expressed by the general formula (I) and the derivative are provided. ##STR1## (wherein X and Y are independently hydrocarbon radicals with from 1 to 6 atoms ...	04/18/2000
5986121	Silacyclopentadiene derivatives and an organic electroluminescent element obtained by using the silacyclopentadiene derivative An electroluminescence element (EL) obtained by using a silacyclopentadiene. derivation expressed by the general formula (I) and the derivative are provided. ##STR1## (wherein X and Y are independently hydrocarbon radicals with from 1 to 6 atoms...	11/16/1999
5492736	Fluorine doped silicon oxide process The present invention is a process for forming a fluorine-containing silicon oxide film on a substrate by plasma-enhanced chemical vapor deposition using a fluorinated silicon source of the formula: ##STR1## wherein at least one of R1 -R	02/20/1996
5478964	N-fluorosulfonimides and their application as fluorinating agents The invention describes N-fluorosulfonimides which are useful as fluorinating agents. The N-fluorosulfonimides are stable, easily synthesized, and allow the introduction of fluorine into organic compounds under mild conditions....	12/26/1995
5449801	Reactive distillation process for free radical halogenation A process for the selective high yield halogenation R--CH3 wherein R is ##STR1## Si(Cl)m (CH3)n, wherein m is 1 to 3, n is 1 to 3 and m+n is 3; phenyl; or phenyl substituted with Cl, Br, F, OR1, ...	09/12/1995
5247028	Halogenated polycarbosilanes and processes for preparing them Halogenated polycarbosilanes with uniform or mixed halogenation prepared from aryl-substituted, particularly phenyl-substituted polycarbosilanes by reaction with halogenating reagents under polar or ionic reaction conditions, optionally in the presence of...	09/21/1993
5243080	Method of fluorinating by using N-fluoropyridinium pyridine heptafluorodiborate The present invention provides a novel compound represented as ##STR1## The present novel compound is prepared by reacting fluorine with pyridine-boron trifluoride and is useful as a fluorinating agent in the fluorination of organic compounds....	09/07/1993
5017718	Process for preparing polyfluoroalkyl-substituted compounds A process for preparing a perfluoroalkyl-substituted compound is disclosed. The process comprises reacting a halopolyfluoroalkane having 1 to 20 carbon atoms with a compound selected from the group consisting of (1) a substituted or unsubstituted ethylene...	05/21/1991
4659852	4-chloromethylphenyl methyl dichlorosilane The inventive compound 4-chloromethylphenyl methyl dichlorosilane is a novel compound not known in the prior art. The silane compound can readily be prepared by the chlorination of 4-tolyl methyl dichlorosilane with sulfuryl chloride as the chlorinating a...	04/21/1987
4571427	Method of preparing 2-chloroethyldichlorosilanes A method for the preparation of 2-chloroethyldichlorosilanes by the reaction of vinyldichlorosilanes with hydrogen chloride in the presence of ferric chloride or tantalum chloride is disclosed. In the presence of these anhydrous metal chlorides, this reac...	02/18/1986
4520130	Halosilane catalyst and process for making same An improvement in process for making cupreous catalyst composition, wherein a copper oxide-preponderant grind charge derived from the oxidation of elemental copper and/or an alloy thereof is subject to high energy milling with concomitant crystal lattice ...	05/28/1985
4504596	Cupreous catalyst and process for making same Improved catalyst is made by including in a grind charge of cupreous particulates a small proportion of hydrated refractory metal oxide such as hydrated alumina. Said grind charge contains a major proportion of cuprous and cupric oxides, a minor proportio...	03/12/1985
4504597	Cupreous catalyst and process making same A grind charge of cupreous particulates containing a major proportion of cuprous and cupric oxides and a minor proportion of elemental copper, said charge having average particle size above 15 microns, is subjected to high energy comminution with concomit...	03/12/1985
4503165	Cupreous catalyst and process for making same Improved catalyst is made by including in a grind charge of cupreous particulates a small proportion of a hydroxide of Period IV metal having Atomic Number between 24 and 30, e.g. iron III oxide monohydrate. Said grind charge contains a major proportion o...	03/05/1985
4405804	Method for preparing 2-chloroethylsilanes A method for preparing 2-chloroethylsilanes which comprises reacting a vinylchlorosilane with hydrogen chloride in the presence of a catalyst consisting of at least one organoaluminum compound, or the product obtained from the in situ reaction of such an ...	09/20/1983
4362885	Process for the manufacture of (iodoorganyl)alkoxysilanes The subject of the invention is a process for the manufacture of (iodoorganyl)alkoxysilanes of the general formula: ##STR1## in which R1 is an alkylene group, R2 is an alkoxy group and R3 and R4 an alkoxy g...	12/07/1982
4207266	Process for the preparation of trifluoromethylated aromatic compounds This invention relates to a novel process for the direct trifluoromethylation of aromatic compounds via carbon tetrachloride and hydrogen fluoride in the presence of strong Bronsted or Lewis acids which give an acidic reaction (increase in concentration o...	06/10/1980
4202988	Prostenoic acids and esters This disclosure describes derivatives, analogs, and congeners of prostanoic acid having a terminal cyclic moiety in the ଲ-chain which possess the pharmacological activities associated with the prostaglandins....	05/13/1980
4161486	Cleavage of silicon-to-carbon bonds by means of hydrogen halide In a process for preparing a halogen alkyl silane by contacting an alkyl silane of the formula wherein R represents a substituted or unsubstituted alkyl or alkenyl group, R' represents an alkyl group, and N represents 0, 1, or 2 With a hydrogen halide in the presen...	07/17/1979
4120570	Method for correcting visual defects, compositions and articles of manufacture useful therein Visual defects of the human eye in the form of refractive errors such as myopia, hyperiopia, astigmatism, athakis and keratoconus are corrected by a therapeutic method which includes the step of fitting to the patient's eye a corrective contact lens fabri...	10/17/1978
4101397	Process for the preparation of alpha-chloromethylsilanes An improvement in a process for the preparation of an ଱-chloromethylsilane of the general formula by chlorination of a methylchlorosilane of the general formula with elemental chlorine while exposing the reaction mixture to light, the improvement residin...	07/18/1978
4085272	11-(2-Hydroxyethylthio)prostenoic acid E₂ series derivatives This disclosure describes certain 11-(2-hydroxyethylthio)-9-keto-prostenoic acid E series derivatives, and their intermediates, useful as bronchodilators and inflammatory medeator release inhibitors....	04/18/1978
4061670	15-Deoxy-16-hydroxy-16-vinyl and cyclopropyl substituted prostanoic acids and congeners This disclosure describes novel 15-deoxy-16-hydroxy-16-substituted prostanoic acids and congeners thereof having utility as bronchodilators as hypotensive agents, and as agents for the control of excessive gastric secretion....	12/06/1977
4055584	Process for the production of beta-chloroethyltrichlorosilane An improvement in the production of ଲ-chloroethyltrichlorosilane by reacting hydrogen chloride with vinyl trichlorosilane in the presence of aluminum chloride at elevated pressure at temperatures between 0° and 90° C is disclosed, which comprises ...	10/25/1977
4053496	Products from the hydrolysis of ଲ-halogenoethyl-silanes and their use as agents for the regulation of plant growth The present invention relates to partially polymerized products obtained by hydrolysis of ଲ-halogenoethyl-silanes and to the hydrolysis of the said monomeric silanes with water or an aqueous medium. The dimers are the preferred final products. The i...	10/11/1977
4049690	Method of preparing ଲ-chloroethyltrichlorosilane An improved process for the hydrochlorination of vinyltrichlorosilane to prepare ଲ-chloroethyltrichlorosilane, which hydrochlorination is carried out by reacting the vinyltrichlorosilane with HCl in the presence of a Lewis catalyst, the improvement ...	09/20/1977
3933881	Process for the manufacture of ଲ-chloroethyl-methyl-dichlorosilane A process for the manufacture of ଲ-chloroethyl-methyl-dichlorosilane by addition of HCl to methylvinyl-dichlorosilane in the presence of AlCl3 and distilling off the resultant end product from the reaction mixture, wherein the isolation o...	01/20/1976

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Class 556/476 - Halogenation of silicon-containing compound