Unsaturated Carbocyclic Ring Containing Patents (Class 556/489)
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Patent number: 5019590Abstract: A process for synthesizing oxygen-containing polyoxatetracycle compounds and in particular analogs of the antimalarial agent known as qinghaosu or artemisinin is disclosed. The process employs as a reactant an olefinically unsaturated bicyclic bridging ketone having nonenolizable bridgehead moieties for both of its alpha positions. This ketone is converted to a vinylsilane that is subjected to ozonolytic cleavage of its olefinic bond to yield a member of a family of unique carboxyl/carbonyl-substituted vinylsilanes which may in turn optionally be subjected to a wide range of reactions prior to a final ozonolysis/acidification step which closes the oxygen-containing ring structure. The various intermediates are claimed as aspects of this invention as are novel tetracycles and their use as antimalarials.Type: GrantFiled: September 27, 1989Date of Patent: May 28, 1991Assignee: SRI InternationalInventors: Mitchell A. Avery, Wesley K. M. Chong
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Patent number: 4985576Abstract: A bisindenyl derivate of the formula I ##STR1## (M.sup.1 =Si or Ge, R.sup.6 and R.sup.7 =unsubstituted or substituted idenyl radical)is obtained in very good yield by reacting a compound of the formula II ##STR2## (X=halogen) with a compound of the formula III or IVR.sup.6 -M.sup.2 (III) R.sup.7 -M.sup.2 (IV)(M.sup.2 =alkali metal)if, in the reaction, compound III or IV is added slowly to compound II.Compound I is suitable as a starting material for the preparation of metallocene catalyst components.Type: GrantFiled: December 29, 1989Date of Patent: January 15, 1991Assignee: Hoechst AktiengesellschaftInventors: Jurgen Rohrmann, Martin Antberg
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Patent number: 4959488Abstract: Polyfunctional hexasubstituted benzene derivatives wherein at least three of the substituents are saturated carbon chains having from 1 to 21 carbon atoms and functional groups containing hetero functionalities at the ends of the carbon chains and the remainder of the 6 substituents are either saturated carbon chains containing from 1 to 21 carbon atoms or saturated carbon chains containing from 1 to 21 carbon atoms having a functional group including a hetero functional group containing N, O, S, P, or Si at the end of the chains. These derivatives are made by reacting a disubstituted alkyne wherein one or both of the substituents are saturated carbon chains having 1 to 21 carbon atoms to which hetero functional groups are attached with a palladium catalyst and isolating the resulting hexasubstituted benzene derivative.Type: GrantFiled: May 17, 1989Date of Patent: September 25, 1990Assignee: Henkel Research CorporationInventors: James M. Renga, Alan G. Olivero, Mark Bosse
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Patent number: 4935409Abstract: Animal growth promoters of the formula ##STR1## The intermediates of the formula ##STR2## are also new.Type: GrantFiled: April 27, 1988Date of Patent: June 19, 1990Assignee: Bayer AktiengesellschaftInventors: Hartmund Wollweber, Jurgen Stoltefuss, Friedrich Berschauer
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Patent number: 4902368Abstract: A method for damping vibration between two bodies comprising providing a layer of a selected material between opposing surfaces of the bodies wherein said material comprises a cured polymer of a compound having the formula ##STR1## where: R.sub.1 is selected from the group consisting of:(a) an aliphatic hydrocarbon group containing 2 to 10 carbon atoms, and(b) a group having the formula ##STR2## where n=1 to 3m=0 to 5R.sub.2 and R.sub.2 ' are each selected from the group consisting of an alkyl group containing 1 to 4 carbon atoms, an unsubstituted aryl group, and a substituted aryl group; andR.sub.Type: GrantFiled: July 13, 1988Date of Patent: February 20, 1990Assignee: Hughes Aircraft CompanyInventor: Susan L. Oldham
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Patent number: 4841084Abstract: The present invention relates to new hexacoordinate silicon complexes, the process for their preparation and their application.These new complexes correspond to the general formula I: ##STR1## in which: A represents an alkali metal or alkaline earth metal except for magnesium, andn=0 or 1.Type: GrantFiled: December 24, 1985Date of Patent: June 20, 1989Assignee: Centre National de la Recherche ScientifiqueInventors: Robert J. Corriu, Genevieve E. Cerveau, Claude G. Chuit, Catherine Reye
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Patent number: 4814475Abstract: A vinylsilane compound represented by general formula (I):R.sup.1 CH.sub.2 CH.sub.2 SiR.sub.a.sup.2 (CH.dbd.CH.sub.2)3-a (I)wherein R.sup.1 represents a monovalent alicyclic unsaturated hydrocarbon group selected from the group consisting of a cyclohexenyl group and a bicycloheptenyl group; R.sup.2 represents a monovalent hydrocarbon group free from an aliphatic unsaturated bond; and a represents 1 or 2, is herein disclosed.Type: GrantFiled: September 8, 1988Date of Patent: March 21, 1989Assignee: Toshiba Silicone Co., Ltd.Inventors: Yuichi Funahashi, Junichiro Watanabe, Kiyoshi Takeda, Makaoto Matsumoto
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Patent number: 4748262Abstract: The invention provides organosilane compounds of a novel class having one or two (phenyl dimethyl carbinyl) groups bonded to the silicon atom as represented by the general formula (PhMe.sub.2 C).sub.p R.sub.q X.sub.r Si, in which Ph is a phenyl group, Me is a methyl group, R is a monovalent hydrocarbon group selected from the class consisting of alkyl, alkenyl and aryl groups, X is a halogen atom or an alkoxy group, p is 1 or 2, q is zero, 1 or 2 and r is zero, 1, 2 or 3 with the proviso that p+q+r=4. The compound can be prepared by the reaction of a Grignard reagent PhMe.sub.2 C. MgY, in which Y is a halogen atom, with a silane compound represented by the general formula R.sub.q SiX.sub.4-q in an organic solvent.Type: GrantFiled: September 1, 1987Date of Patent: May 31, 1988Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Toshinobu Ishihara, Minoru Takamizawa, Mikio Endo, Toru Kubota
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Patent number: 4746751Abstract: The preparation of particular fluorescent silane dye compositions is disclosed. These silane dye compositions have particular utility as reactants in the preparation of silicone polymeric fluorescent dyes which can be ideally used as chemical indicators in biological sensors.Type: GrantFiled: May 7, 1987Date of Patent: May 24, 1988Assignee: Baxter Travenol Laboratories, Inc.Inventors: Henry W. Oviatt, Jr., Cary J. Reich
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Patent number: 4724260Abstract: Monomeric compositions comprising a monomer containing one arylcyclobutane moiety, and a molecular group comprising at least one unsaturated alkyl group are provided.Type: GrantFiled: February 28, 1986Date of Patent: February 9, 1988Assignee: The Dow Chemical CompanyInventors: Robert A. Kirchhoff, Alan K. Schrock, Stephen F. Hahn
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Patent number: 4697027Abstract: A method for purifying alkoxysilane with the general formula, R.sub.m Si(OR.sup.1).sub.4-m. The method significantly lowers the level of non-hydrolyzable chlorine-based impurities, as well as the level of hydrolyzable chlorine-based impurities. The method comprises: (i) heating the alkoxysilane in the presence of a treating agent selected from a group which consists of acid clays and metal halides; (ii) contacting the alkoxysilane with a neutralization agent; and (iii) separating the alkoxysilane from the unused neutralization agent and by-products of neutralization.Type: GrantFiled: October 27, 1986Date of Patent: September 29, 1987Assignee: Toray Silicon Co., Ltd.Inventors: Junpei Sugihara, Takeshi Imai, Shuzo Toida, Ikuzo Takahashi
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Patent number: 4695643Abstract: Compounds of the formula Ia ##STR1## in which X and R.sup.1 to R.sup.6 are as defined in the claims, are obtainable by reacting monochlorosilanes of the formula II ##STR2## with tetrasubstituted ethylenes of the formula III ##STR3## X as Cl and Br can be replaced by ester groups of inorganic and organic acids. The compounds of the formula I and those with other ester groups are suitable especially as a protective-group reagent for hydroxyl, mercapto, carboxyl, amino and amide groups.Type: GrantFiled: October 1, 1985Date of Patent: September 22, 1987Assignee: Ciba-Geigy CorporationInventors: Konrad Oertle, Hansjurg Wetter
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Patent number: 4673755Abstract: A new class of hydrocarbon foaming agents which are block copolymers, one block of which is a styrene derivative, the other a vinylsilane derivative. Said hydrocarbon foaming agents are nonreactive with common anionic initiators.Type: GrantFiled: July 25, 1985Date of Patent: June 16, 1987Assignee: The Dow Chemical CompanyInventor: Gregory K. Rickle
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Patent number: 4642356Abstract: New organosilicon compounds of the formula ##STR1## R represents a hydrogen radical with 1 to 6 carbon atoms, or a phenyl radical;R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are the same or different and represent hydrogen or methyl radicals;R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are the same or different and represent hydrogen, fluorine or hydrocarbon radicals with 1 to 8 carbon atoms, or fluorinated hydrocarbon radicals, in which at least one R.sup.5, R.sup.6 R.sup.7 or R.sup.8 radicals must be a fluorine or a fluorinated hydrocarbon radical;Y is a hydrolyzable radical, hydroxyl radical or organosiloxanyl radical;A represents ##STR2## in which R.sup.9 may be the same or different and represents a hydrogen or a methyl radical; anda has a value of 0, 1, 2, or 3.Type: GrantFiled: June 14, 1985Date of Patent: February 10, 1987Assignee: Th. Goldschmidt AGInventors: Jaroslav Langner, Christian Weitemeyer
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Patent number: 4617413Abstract: The present invention relates to new pentacoordinate silicon complexes, the process for their preparation and their application to the preparation of organosilanes.The pentacoordinate silicon complexes according to the invention correspond to the general formula I: ##STR1## in which: R denotes an alkyl, alkenyl, alkynyl, aryl, aralkyl, aralkenyl, aralkynyl or alkylaryl radical in which the aliphatic fragments are linear, branched or cyclic and contain from 1 to 20 carbon atoms,A represents an alkali metal or alkaline earth metal, with the proviso however that A represents neither sodium nor potassium when R is a phenyl radical, andn=1 or 2.Type: GrantFiled: December 24, 1985Date of Patent: October 14, 1986Assignee: Centre National de la Recherche ScientifiqueInventors: Robert J. Corriu, Genevieve E. Cerveau, Claude G. Chuit, Catherine Reye
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Patent number: 4579966Abstract: Novel terpenoid alkoxysilanes having the general formula: ##STR1## wherein Y is hydrogen or Si(R.sup.2).sub.n X.sub.m (OR.sup.3).sub.3-(N-m), Z is hydrogen or Si(R.sup.2).sub.n X.sub.m (OR.sup.3).sub.3-(n+m), one of Y and Z being Si(R.sup.2).sub.n X.sub.m (OR.sup.3).sub.3-(n+m), R.sup.2 and R.sup.3 being the same or different C.sub.1 -C.sub.3 alkyl group, X is halogen, m and n are independently selected from 1 and 0, and II W is Si(R.sup.2).sub.n X.sub.m (OR.sup.3).sub.3-(n+m), where R.sup.2, R.sup.3, X, n and m are as defined above.Type: GrantFiled: January 14, 1985Date of Patent: April 1, 1986Assignee: SCM CorporationInventors: Ralph J. De Pasquale, Paul W. Kremer
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Patent number: 4502973Abstract: Electroviscous (EV) fluids consisting of solid hydrophilic particles dispersed in hydrophobic liquids, where the liquid contains a diaryl derivative component of general formula I ##STR1## in which R is CY.sub.2,O,S,SO,SO.sub.2,SiF.sub.2, or O--SiY.sub.2 --O,X.sup.1 and X.sup.2 are halogens, (m+n) is between 1 and 3 on average, and (p+q) is between 0 and 1 on average. EV fluids containing these novel components possess generally improved properties in terms of lower viscosities, electrical conductivities, toxicities and freezing points. In a preferred embodiment, the component is a mixture of brominated diphenyl methanes in which R is CH.sub.2,n=O,X.sup.1 =Br,(m+n) is approximately one, and (p+q)=0.Type: GrantFiled: February 3, 1983Date of Patent: March 5, 1985Assignee: National Research Development CorporationInventor: James E. Stangroom
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Patent number: 4469881Abstract: [2-(p-t-Butylphenyl)ethyl]silanes are provided having the general formula:Si(B).sub.x (R).sub.y (A).sub.zwherein B is a (p-t-butylphenyl)ethyl moiety, R is an alkyl or aryl moiety and A is a hydrolyzeable moiety; x equals 1 or 2, y equals 0, 1 or 2 and z equals 1, 2 or 3 such that x plus y plus z equals 4. The bulky substituted silanes are produced by the hydrosilylation of p-t-butylstyrene.[2-(p-t-Butylphenyl)ethyl] substituted disiloxanes are also provided, having the general formula:(B).sub.x (R).sub.y (A).sub.z Si--O--Si(A).sub.z (R).sub.y (B).sub.xwherein B, R, A, x, y and z are as defined above except that z equals 0,1 or 2 and x plus y plus z equals 3. The bulky substituted disiloxanes are produced by the hydrolysis of above-described bulky substituted silanes.Type: GrantFiled: September 27, 1982Date of Patent: September 4, 1984Assignee: Petrarch Systems Inc.Inventor: Barry C. Arkles
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Patent number: 4421654Abstract: What is disclosed is the preparation of novel silanes, their reaction products on various substrates and the use of the treated substrates to extract metal ions from solution.Type: GrantFiled: July 15, 1982Date of Patent: December 20, 1983Assignee: Dow Corning CorporationInventor: Edwin P. Plueddemann
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Patent number: 4381377Abstract: A homo- or copolymer of a 1,3-diene bound to reactive silyl groups, whereby it contains 0.4-12% by weight of bound silicon, is prepared by reacting, at a temperature of 190.degree.-300.degree. C., a 1,3-diene homo- or copolymer, with more than 1% of its aliphatic double bonds in conjugation and having a molecular weight (Mn) of 400-6,000, with a silane of the formula ##STR1## wherein R is an unsaturated aliphatic hydrocarbon radical of 2-20 carbon atoms,X is halogen, C.sub.1-6 alkoxy, C.sub.1-6 alkoxyalkoxy, C.sub.6-12 aryloxy, C.sub.1-8 alkanoyloxy, C.sub.1-6 ketoximato or C.sub.1-10 hydrocarbylamido, andY and Z are independently one of the X groups, hydrogen, alkyl of 1-8 carbon atoms, cycloalkyl of 5-12 carbon atoms, or optionally substituted phenyl.Type: GrantFiled: February 2, 1981Date of Patent: April 26, 1983Assignee: Chemische Werke Huels, AGInventors: Wolfgang Kampf, Roland Streck, Horst-guenter Haag
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Patent number: 4297499Abstract: Novel disubstituted dichlorosilane compounds which have two different specified substituents and are necessary as monomers for preparing special silicone resin are provided and a method for producing same without accompaniment of by-product production is also provided.Type: GrantFiled: April 11, 1978Date of Patent: October 27, 1981Assignee: Chisso CorporationInventors: Isao Koga, Yohji Terui, Masuhito Ohgushi, Tohru Kitahara
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Patent number: 4287354Abstract: Nonpolar, organic solvent-soluble tellurium compounds and complexes are disclosed. The compounds are tellurium(II) compounds and are represented by the formula:Te[ (CH.sub.2).sub.n SiRR'R"].sub.2wherein:n is an integer from 1 to 10 andR, R' and R" are independently selected from the group consisting of alkyl, aryl and heterocyclic radicals. Photosensitive complexes of these compounds with transition metals, as well as photographic elements having layers comprising these complexes, are also disclosed.Type: GrantFiled: October 20, 1980Date of Patent: September 1, 1981Assignee: Eastman Kodak CompanyInventor: Henry J. Gysling
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Patent number: 4283578Abstract: This invention is concerned with producing ethylene and/or 1,2-propylene glycol by the reaction of a non-cyclic oxymethylene compound formed by the hydration or acetalization of formaldehyde with a compound containing one or more of silicon, germanium and tin bonded therein which functions as an addend in a photochemically or thermally induced radical reaction, to form a 1,2-dioxyethylene containing compound, and cleaving such 1,2-dioxyethylene containing compound to form the glycol thereof.Type: GrantFiled: May 23, 1980Date of Patent: August 11, 1981Assignee: Union Carbide CorporationInventor: Leonard Kaplan
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Patent number: 4269993Abstract: Novel diaralkyldichlorosilanes expressed by the general formula (I) ##STR1## (wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 each represent hydrogen atom or an alkyl group having 1.about.4 carbon atoms, but a case where R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are all hydrogen atom is excluded),and a process for producing the same are provided.They are useful as monomers for producing polysiloxanes and as intermediates for synthesizing novel organosilicon compounds.Type: GrantFiled: October 15, 1979Date of Patent: May 26, 1981Assignee: Chisso CorporationInventors: Nobumasa Ohtake, Isao Koga, Yohji Terui
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Patent number: 4254271Abstract: In the addition of an unsaturated compound into a silane of the formulaR.sub.1 R.sub.2 SiXHwhereinX is Cl or Br, andR.sub.1 and R.sub.2 each independently is an alkyl, aryl or aralkyl radical with up to 20 C atoms, or an alkenyl or alkinyl radical with up to 12 C atoms,the improvement which comprises effecting the addition reaction in the presence of at least one of aluminum chloride, aluminum bromide, aluminum oxychloride and aluminum oxybromide.Type: GrantFiled: January 12, 1979Date of Patent: March 3, 1981Assignee: Bayer AktiengesellschaftInventors: Ulrich Finke, Hans-Heinrich Moretto
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Patent number: 4242272Abstract: Substituted phenethyldichlorosilanes having a longer chain alkyl group and diphenethyldichlorosilane which are useful as compounds for improving heat-resisting property and other properties of silicone-oils, -rubbers and -varnishes which are used as electric insulating materials, lubricating oils, water-repelling agents, paintings, releasing agents, etc. are provided. A method for producing these compounds with a high yield without producing by-products is also provided.Type: GrantFiled: June 15, 1978Date of Patent: December 30, 1980Assignee: Chisso CorporationInventors: Isao Koga, Yohji Terui, Masuhito Ohgushi, Tohru Kitahara