Sulfur Or Oxygen Containing Patents (Class 568/13)
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Patent number: 5516944Abstract: The present invention is concerned with novel optically active phosphorus compounds of the general formula ##STR1## wherein R and R.sup.1 each independently signify hydroxy, a protected hydroxy group, lower alkyl or lower alkoxy andR.sup.2 to R.sup.5 each independently signify alkyl with 3 to 7 carbon atoms, cycloalkyl or aryl or R.sup.2 and R.sup.3 or R.sup.4 and R.sup.5 together with the phosphorus form a group of the formula ##STR2## wherein R2 and R3 are different when R4 and R5 are the same, and R4 and R5 are different when R2 and R3 are the same,the manufacture of such compounds, their use for enantioselective reactions, such as, e.g., asymmetric hydrogenations, enantioselective hydrogen displacements in prochiral allylic systems and the like, as well as complexes of the compounds of formula I with Group VIII metals.Type: GrantFiled: September 30, 1994Date of Patent: May 14, 1996Assignee: Hoffmann-La Roche Inc.Inventors: Emil A. Broger, Marco Cereghetti, Alain Rageot
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Patent number: 5508438Abstract: Novel, racemic and optically active phosphorus compounds of the formula ##STR1## wherein R signifies lower alkyl, lower alkoxy, hydroxy or a protected hydroxy group, R.sup.1 and R.sup.2 are different from each other and represent lower alkyl, cycloalkyl, aryl, a five-membered heteroaromatic or a group of the formula ##STR2## are described. The compounds of formula I are useful in the form of complexes with a metal of Group VIII as catalysts for asymmetric hydrogenations and for enantioselective hydrogen displacements in prochiral allylic systems.Type: GrantFiled: September 24, 1993Date of Patent: April 16, 1996Assignee: Hoffmann-La Roche Inc.Inventors: Emil A. Broger, Marco Cereghetti
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Patent number: 5504236Abstract: The preparation of .alpha.-carbonylphosphine oxides by oxidizing an .alpha.-hydroxyalkyl phosphine oxide with an organic hydroperoxide or of an organic peroxy acid in the presence of a compound of a Group IV to Group VIII metal in the periodic table, and novel .alpha.-hydroxybenzyl phosphine oxides..alpha.-Carbonylphosphine oxides are used as photoinitiators for polymerizable compositions.Type: GrantFiled: September 7, 1993Date of Patent: April 2, 1996Assignee: BASF AktiengesellschaftInventors: Martin Fischer, Eckhard Hickmann, Rudolf Kropp, Jochen Schroeder, Beate Trentmann
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Patent number: 5488172Abstract: Novel chiral phosphorus compounds of the formula ##STR1## wherein R signifies lower alkyl, R.sup.1 signifies phenyl and R.sup.2 and R.sup.3 signify hydrogen or lower alkoxy,which are suitable in the form of complexes with a metal of Group VIII as catalysts for asymmetric hydrogenations and for enantioselective hydrogen displacements in prochiral allylic systems.Type: GrantFiled: August 23, 1994Date of Patent: January 30, 1996Assignee: Hoffmann-La Roche Inc.Inventors: Marco Cereghetti, Joseph Foricher, Bernd Heiser, Rudolf Schmid
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Patent number: 5466845Abstract: The present invention provides photoactive sulfonium salts which can be employed as photoinitiators for the polymerization of cationically polymerized organic substances and are soluble in these substances.Type: GrantFiled: October 20, 1994Date of Patent: November 14, 1995Assignee: Wacker-Chemie GmbHInventor: Christian Herzig
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Patent number: 5430191Abstract: Novel racemic and optically active phosphorus compounds of the formula ##STR1## wherein R signifies hydroxy or a protected hydroxy group, R.sup.1 represents hydroxy, a protected hydroxy group or lower alkoxy and R.sup.2 represents lower alkyl, cycloalkyl, aryl or together with the phosphorus atom a group of the formula are described. The compounds of formula I are useful in the form of complexes with a metal of Group VIII as catalysts for asymmetric hydrogenations and for enantioselective hydrogen displacements in parochial, allylic systems.Type: GrantFiled: September 27, 1993Date of Patent: July 4, 1995Assignee: Hoffmann-La Roche Inc.Inventors: Joseph Foricher, Rudolf Schmid
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Patent number: 5426222Abstract: The present invention relates to an improved method for the preparation of iodonium salts. More specifically, the present invention relates to an improved method for the production of symmetric or asymmetric diaryliodonium triflate (trifluoromethane sulfonate) salts. The diaryliodonium salts of the present invention are useful as photoacid catalysts for use in acid-sensitive polymerization and in curing systems such as radiation curable release coating compositions.Type: GrantFiled: August 17, 1994Date of Patent: June 20, 1995Assignee: Dow Corning CorporationInventors: Scott E. Wargo, John P. Cannady
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Patent number: 5302738Abstract: Novel, racemic and optically active phosphorus compounds of the formula ##STR1## wherein R signifies lower alkyl, lower alkoxy or protected hydroxy, R.sup.1 signifies lower alkoxy, phenoxy, benzyloxy, chlorine or bromine, R.sup.2 stands for lower alkyl or lower alkoxy and n represents the number 0, 1 or 2, are described. These compounds are valuable intermediates in the manufacture of not only known, but also novel diphosphine ligands.Type: GrantFiled: November 13, 1992Date of Patent: April 12, 1994Assignee: Hoffmann-La Roche Inc.Inventors: Joseph Foricher, Bernd Heiser, Rudolf Schmid
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Patent number: 5302757Abstract: A composition of matter including an onium salt and a method of forming images. The onium salt has a chromophore which absorbs ultraviolet radiation, an S, Se, As, N or P atom which is free of substituents exhibiting a higher energy occupied molecular orbital than the chromophore; an insulating group which links the chromophore to the S, Se, As, N or P atom of the salt and substantially prevents .pi. resonance from the chromophore through the S, Se, As, N or P atom; and an anion. The onium salt is capable of forming a Bronsted acid upon exposure to ultraviolet radiation in the presence of a proton source. In the method of forming images, the onium salt is exposed to ultraviolet radiation in the presence of a proton source, to convert said onium salt to a Bronsted acid.Type: GrantFiled: September 14, 1992Date of Patent: April 12, 1994Assignee: Eastman Kodak CompanyInventor: Franklin D. Saeva
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Patent number: 5288912Abstract: Disclosed is a process for the preparation of alkali metal diarylphosphide compounds wherein at least one of the aryl radicals is substituted with an alkyl group. Also disclosed is the preparation of alkyl(diaryl)phosphine compounds which are obtained by the reaction of the alkali metal diarylphosphide compounds with alkyl halide alkylating agents.Type: GrantFiled: February 12, 1993Date of Patent: February 22, 1994Assignee: Eastman Kodak CompanyInventor: Thomas J. Devon
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Patent number: 5274148Abstract: This invention relates to C.sub.14 to C.sub.20 alkoxy monophenyl sulfonium salt initiators having the formula ##STR1## wherein R is C.sub.14 to C.sub.20 alkyl; R.sub.1 and R.sub.2 are each independently C.sub.4 to C.sub.20 alkyl and X.sup.- is a non-basic, nonnucleophilic anion, which initiators are employed in the polymerization of mono- and poly- functional glycidyl ethers, alpha-olefin oxides and vinyl monomers or oligomers.Type: GrantFiled: August 10, 1992Date of Patent: December 28, 1993Assignee: ISP Investments, Inc.Inventors: James A. Dougherty, James V. Crivello
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Patent number: 5245041Abstract: A process for the preparation of cyclohexanedione derivatives of the general formula I ##STR1## where R.sup.1 is C.sub.2 -C.sub.8 -alkyl, C.sub.2 -C.sub.8 -alkenyl, C.sub.3 -C.sub.12 -cycloalkyl, C.sub.5 -C.sub.12 -cycloalkyl with 0-4 olefinically unsaturated bonds, C.sub.2 -C.sub.8 -alkylthioalkyl, C.sub.6 -C.sub.12 -bicycloalkyl with 0-3 olefinically unsaturated bonds, unsubstituted or substituted aryl or hetaryl, or a heterocyclic radical of 4 to 7 atoms of which not more than 3 may be hetero-atoms chosen from O, S and N, the radical being saturated or olefinically unsaturated, by reacting an .alpha.,.beta.-unsaturated ketone (II) with a dialkyl malonate in the presence of a base to give the alkoxycarbonylcyclohexenolone or its salt (III) ##STR2## and acylation, hydrolysis and decarboxylation of (III), wherein the .alpha.,.beta.Type: GrantFiled: December 18, 1991Date of Patent: September 14, 1993Assignee: BASF AktiengesellschaftInventors: Gernot Reissenweber, Winfried Richarz
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Patent number: 5243079Abstract: An improved process for the production of linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon employs a novel catalyst composition formed from a compound of palladium, the anion of a strong non-hydrohalogenic acid and a novel hexakis phosphine ligand. The process is characterized by a lessened degree of reactor fouling.Type: GrantFiled: August 28, 1992Date of Patent: September 7, 1993Assignee: Shell Oil CompanyInventors: Johannes J. Keijsper, Alexander W. van der Made, Petrus W. N. M. van Leeuwen
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Patent number: 5202493Abstract: Chiral tridentate bis(phospholanes) which coordinate as ligands in a meridinal fashion on an octahedral metal or which coordinate in square-planar environments are provided with a method for their preparation.Type: GrantFiled: April 26, 1991Date of Patent: April 13, 1993Assignee: E. I. Du Pont de Nemours and CompanyInventor: Mark J. Burk
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Patent number: 5166387Abstract: A method for synthesizing sulfurized oligonucleotide analogs, such as phosphorothioate and phosphorodithioate analogs, is provided that employs a thiuram disulfide as a sulfurizing agent. The method of the invention may be used to sulfurize any phosphorous(III)-containing intermediate. Preferably, the method is practiced on a commercial DNA synthesizer using phosphoramidite and/or phosphorthioamidite intermediates.Type: GrantFiled: January 12, 1990Date of Patent: November 24, 1992Assignee: Applied Biosystems, Inc.Inventor: Bernard L. Hirschbein
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Patent number: 5144051Abstract: Disclosed are C.sub.6 to C.sub.11 branched chain alkoxy monosubstituted diaryl iodonium salts, such as [4-(2-ethylhexyloxy)phenyl]phenyliodonium hexafluoroantimonate. These diaryl iodonium salts are useful as photoinitiators for epoxy containing compounds, especially epoxysilanes.Type: GrantFiled: May 29, 1990Date of Patent: September 1, 1992Assignee: Minnesota Mining and Manufacturing CompanyInventors: Carl R. Kessel, Ellen O. Aeling
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Patent number: 5132448Abstract: .alpha.-Chloro phosphorus ylides of the formula I ##STR1## where the Ar radicals are identical or different aryl groups, and E is a substituent which stabilizes the ylide (I), are prepared by reacting a phosphonium salt of the formula II ##STR2## where Hal is chlorine, bromine or iodine, with a chlorinating agent, using bleaching powder as chlorinating agent.Type: GrantFiled: September 11, 1990Date of Patent: July 21, 1992Assignee: BASF AktiengesellschaftInventor: Bernd Schaeffer
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Patent number: 5118856Abstract: A process for the preparation of cyclohexanedione derivatives of the general formula I ##STR1## where R.sup.1 is C.sub.2 -C.sub.8 -alkyl, C.sub.2 -C.sub.8 -alkenyl, C.sub.3 -C.sub.12 -cycloalkyl, C.sub.5 -C.sub.12 -cycloalkyl with 0-4 olefinically unsaturated bonds, C.sub.2 -C.sub.8 -alkylthioalkyl, C.sub.6 -C.sub.12 -bicycloalkyl with 0-3 olefinically unsaturated bonds, unsubstituted or substituted aryl or hetaryl, or a heterocyclic radical of 4 to 7 atoms of which not more than 3 may be hetero-atoms chosen from O, S and N, the radical being saturated or olefinically unsaturated, by reacting an .alpha.,.beta.-unsaturated ketone (II) with a dialkyl malonate in the presence of a base to give the alkoxycarbonylcyclohexenolone or its salt (III) ##STR2## and acylation, hydrolysis and decarboxylation of (III), wherein the .alpha.,.beta.Type: GrantFiled: August 2, 1990Date of Patent: June 2, 1992Assignee: BASF AktiengesellschaftInventors: Gernot Reissenweber, Winfried Richarz
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Patent number: 5118855Abstract: Novel 2-(.omega.-hydroxyalkyl)-1,3-bis(diarylphosphino)propane compounds are useful in the production of immobilized bidentate phosphine ligands for catalyst production.Type: GrantFiled: February 25, 1991Date of Patent: June 2, 1992Assignee: Shell Oil CompanyInventors: Julianus L. van der Baan, Friedrich Bickelhaupt, Joachim W. F. K. Barnick
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Patent number: 5118854Abstract: Alkali metal di(2-alkoxyphenyl)phosphide is produced in good yield by reaction of alkali metal and the corresponding tri(2-alkoxyphenyl)-phosphine in liquid ammonia.Type: GrantFiled: October 7, 1991Date of Patent: June 2, 1992Assignee: Shell Oil CompanyInventors: Johannes A. Van Doorn, Nicolaas Meijboom, Richard L. Wife
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Patent number: 5101053Abstract: Radiation sensitive sulfonium salts which contain (1) a sulfonium initiator portion, (2) a spacer portion, and (3) a reactive group portion. The spacer portion has the formula "-o-w- x-z-" wherein "w" is a single bond or one of --C(O)--, --C(O)O--, --C(O)S--, --C(O)NH-- --C(O)N(alkyl)--, --C(S)--, --C(S)S--,--S(O)--, --S(O)(O)--, or --S(O)(O)O--; "X" is an unsubstituted or substituted alkylene radical; and "Z" is --O--, --NH--, --N(C,--C.sub.6 -alkyl)--, or --N(phenyl)--. The reactive group portion is --CH.dbd.CH.sub.2 or --C(O)--C(Y).dbd.CH.sub.2 wherein "Y" is H, C.sub.1 -.sub.6 -alkyl, or phenyl. The sulfonium salts find use in curing monomers which can be subjected to cationic polymerization.Type: GrantFiled: January 9, 1990Date of Patent: March 31, 1992Assignee: BASF AktiengesellschaftInventor: Andreas Boettcher
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Patent number: 5093017Abstract: The reaction product of olefin, sulfur, aliphatic amine, alkylene oxide, phosphorus pentasulfide, and phosphorus pentoxide provides an effective antiwear additive agent for lubricating oils.Type: GrantFiled: March 5, 1990Date of Patent: March 3, 1992Assignee: Mobil Oil CorporationInventors: Harry J. Andress, Henry Asnjian
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Patent number: 5047568Abstract: Sulfonium salts of the formula: ##STR1## wherein Ar is a fused aromatic radical; R.sub.1 is a divalent organic bridge; each R.sub.2 and R.sub.3 individually is an alkyl, aryl, alkaryl, aralkyl or substituted aryl, provided thatn not more than one of R.sub.2 and R.sub.3 is alkyl; and A is a non-nucleophilic anion; use thereof and preparation thereof.Type: GrantFiled: November 18, 1988Date of Patent: September 10, 1991Assignee: International Business Machines CorporationInventors: Raymond W. Angelo, Jeffrey D. Gelorme, Joseph P. Kuczynski, William H. Lawrence, Socrates P. Pappas, Logan L. Simpson
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Patent number: 5045302Abstract: This invention concerns novel bidentate ligands L having two phosphorus or arsenic atoms. Cationic complexes of the ligands with Technetium-99m, e.g. having the formula [TcO.sub.2 L.sub.2 ].sup.+, are useful for body imaging, particularly myocardial imaging. The ligands have the general formulaY.sub.2 QZQY.sub.2where Q is phosphorus orZ is a --CC-- or --CCC-- or --COC-- groups,the four groups Y are all C1-C8 saturated hydrocarbon or fluorohydrocarbon with 1-3 ether oxygen atoms.Type: GrantFiled: March 28, 1989Date of Patent: September 3, 1991Assignee: Amersham International plcInventors: James D. Kelly, Kwok W. Chiu, Ian A. Latham
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Patent number: 5012001Abstract: Triarylsulfonium polyfluoro metal or metalloid salts are provided by effecting the oxidation of a diarylsulfide, while under dehydrating conditions, in the presence of a strong protonic acid. The resulting triarylsulfonium acid salt can thereafter be directly metathesized with an alkali metal or alkaline earth metal polyhalo salt.These compounds have the general formula ##STR1## where Q is selected from .dbd.S.fwdarw.O, --S-- and mixtures thereof, M is a transition metal or metalloid, "c" is an integer of 1 to 3, "d" is an integer of 0 to 3, R.sup.6 is phenyl or naphthyl, R.sup.7 is phenylene or naphthalene optionally substituted with one or more radicals selected from the class consisting of --CH.sub.3, --OCH.sub.3, --CO.sub.2 H, --Br, --Cl, and NO.sub.2.Type: GrantFiled: April 30, 1990Date of Patent: April 30, 1991Assignee: General Electric CompanyInventor: James V. Crivello
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Patent number: 4996361Abstract: Asymmetric hydrogenation of prochiral N-arylketimines to give optically active secondary amines at a temperature from -40.degree. to 80.degree. C., under a hydrogen pressure of 10.sup.6 to 10.sup.8 Pa and with the addition of catalytic amounts of a rhodium compound of the formula III or IIIa ##STR1## in which X is 2 olefin ligands or a diene ligand, Y is a chiral diphosphine in which the secondary phosphine groups are linked by 2-4 C atoms and which, together with the Rh atom, forms a 5-membered, 6-membered or 7-membered ring, or Y is a chiral disphosphinite in which the phosphinite groups are linked via 2 C atoms and which, together with the Rh atom, forms a 7-membered ring, Z is Cl, Br or I and A.sup.- is the anion of an oxygen acid or complex acid.Type: GrantFiled: July 30, 1987Date of Patent: February 26, 1991Assignee: The University of British ColumbiaInventors: William R. Cullen, Michael D. Fryzuk, Brian R. James, Guo-Jun Kang, James P. Kutney, Roberto Spogliarich, Ian S. Thorburn
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Patent number: 4956055Abstract: A process is disclosed for preparing bidentate ligands of the formula: ##STR1## wherein: each Ar is independently selected from aromatic ring compounds having 6 up to 14 carbon atoms, e.g., phenyl, naphthyl, phenanthryl and anthracenyl;the x bonds and the y bonds are attached to adjacent carbon atoms on the ring structures;each R, when present as a substituent, is independently selected from alkyl, alkoxy, aryloxy, aryl, aralyky, alkaryl, alkoxyalky, cycloaliphatic, halogen, alkanoyl, alkanoyloxy, alkoxycarbonyl, carboxyl, cyano or formyl radicals;n is a whole number in the range of 0-4 where Ar is phenyl; 0-6 where Ar is naphthyl; and 0-8 where Ar is phenanthryl or anthracenyl;each R.sub.1 and R.sub.2 is independently selected from alkyl, aryl, aralkyl, alkaryl or cycloaliphatic radicals, or substituted derivatieves thereof;each R.sub.3 and R.sub.4 is independently selected from hydrogen and the R.sub.Type: GrantFiled: July 24, 1989Date of Patent: September 11, 1990Assignee: Eastman Kodak CompanyInventor: Thomas A. Puckette
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Patent number: 4956467Abstract: Novel nucleophilic tertiary organophosphines and the specific cleavage of peptide bonds by nucleophilic tertiary organophosphines. This invention is of particular utility in providing chemical agents for use in the cleavage of proteins and the determination of the amino acid sequence of proteins.Type: GrantFiled: April 5, 1989Date of Patent: September 11, 1990Assignee: American Cyanamid CompanyInventors: Lois M. Hinman, Libby S. Miller
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Patent number: 4954125Abstract: A catalyst consisting essentially of (A) a cobalt compound and (B) an organic phosphorus compound represented by the formula: ##STR1## wherein R.sup.1 and R.sup.2 are independently hydrogen atoms, alkyl groups or aryl groups, and three X's, which may be the same or different, are electron-donating groups. This catalyst is effectively used in a process for producing a conjugated diene polymer by polymerizing a conjugated diene in a hydrocarbon or halogenated hydrocarbon solvent in the presence of the above catalyst together with (C) an organoaluminum compound and (D) 0.25-1.5 mols, per mol of the organoaluminum compound (C), of water.Type: GrantFiled: June 20, 1988Date of Patent: September 4, 1990Assignee: Japan Synthetic Rubber Company, Ltd.Inventors: Hisao Ono, Ryuji Sato, Takumi Miyachi
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Patent number: 4954227Abstract: A process is disclosed for preparing bidentate ligands of the formula: ##STR1## wherein: each AR is independently selected from aromatic ring compounds having 6 up to 14 carbon atoms, e.g., phenyl, naphthyl, phenanthryl and anthracenyl;the x bonds and the y bonds are attached to adjacent carbon atoms on the ring structures;each R, when present as a substituent, is independently selected from alkyl, alkoxy, aryloxy, aryl, aralkyl, alkaryl, alkoxyalkyl, cycloaliphatic, halogen, alkanoyl, alkanoyloxy, alkoxycarbonyl, carboxyl, cyano or formyl radicals;n is a whole number in the range of 0-4 were Ar is phenyl; 0-6 where Ar is naphthyl; and 0-8 where Ar is phenanthryl or anthracenyl;each R.sub.1 and R.sub.2 is independently selected from alkyl, aryl, aralkyl, alkaryl or cycloaliphatic radicals, or substituted derivatives thereof;each R.sub.3 and R.sub.4 is independently selected from hydrogen and the R.sub.Type: GrantFiled: July 24, 1989Date of Patent: September 4, 1990Assignee: Eastman Kodak CompanyInventor: Thomas A. Puckette
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Patent number: 4889956Abstract: Benzyl- or allyl- di(polar-substituted-phenyl)phosphines are converted in good yield to the corresponding alkali metal di(polar-substituted-phenyl)phosphide by reaction with alkali metal in liquid ammonia.Type: GrantFiled: March 30, 1988Date of Patent: December 26, 1989Assignee: Shell Oil CompanyInventors: Johannes A. Van Doorn, Nicolaas Meijboom
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Patent number: 4879416Abstract: The process for preparing a bidentate ligand comprising the steps,(1) contacting with ozone under ozonolysis conditions a suspension in a hydroxylic reaction medium of phenanthrene or a phenanthrene derivative to form an ozonated intermediate,(2) contacting said ozonated intermediate with a reducing agent under conditions appropriate to form the corresponding diol,(3) contacting said diol with a latent displaceable functional group under conditions appropriate to convert the diol to the corresponding difunctional biaryl compound, and(4) contacting said difunctional biaryl compound, with an anion of N, P, As, Sb or Bi under conditions appropriate to form the desired bidentate ligand.Type: GrantFiled: November 23, 1987Date of Patent: November 7, 1989Assignee: Eastman Kodak CompanyInventors: Thomas A. Puckette, Thomas J. Devon, Gerald W. Phillips, Jerome L. Stavinoha
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Patent number: 4879008Abstract: A process is disclosed for preparing bidentate ligands of the formula: ##STR1## wherein: each Ar is independently selected from aromatic ring compounds having 6 up to 14 carbon atoms, e.g., phenyl, naphthyl, phenanthryl and anthracenyl;the x bonds and y bonds are attached to adjacent carbon atoms on the ring structure;each R, when present as a substituent, is independently selected from alkyl, alkoxy, aryloxy, aryl, aralkyl, alkaryl, alkoxyalkyl, cycloaliphatic, halogen, alkanoyl, alkanoyloxy, alkoxycarbonyl, carboxyl, cyano or formyl radicals;n is a whole number in the range of 0-4 were Ar is phenyl; 0-6 where Ar is naphthyl; and 0-8 where Ar is phenanthryl or anthracenyl;each R.sub.1 and R.sub.2 is independently selected from alkyl, aryl, aralkyl, alkaryl or cycloaliphatic radicals, or substituted derivatives thereof;each R.sub.3 and R.sub.4 is independently selected from hydrogen and the R.sub.Type: GrantFiled: November 9, 1987Date of Patent: November 7, 1989Assignee: Eastman Kodak CompanyInventor: Thomas A. Puckette
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Patent number: 4874897Abstract: Bis[di(alkoxyphenyl)phosphino]alkanes are produced by reacting an alkoxyphenyl Grignard with phosphorus trichloride and converting the resulting di(alkoxyphenyl)phosphorus chloride to the corresponding phosphine. The di(alkoxyphenyl)phosphine is reacted with a dihaloalkane to produce the desired bisphosphine.Type: GrantFiled: May 4, 1988Date of Patent: October 17, 1989Assignee: Shell Oil CompanyInventors: Friedrich Bickelhaupt, Thomas van der Does
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Patent number: 4822915Abstract: An oligomerization or cooligomerization process comprising passing ethylene or a mixture of ethylene and propylene in contact with a catalyst, in the liquid phase.Type: GrantFiled: May 26, 1987Date of Patent: April 18, 1989Assignee: Union Carbide CorporationInventor: Rex E. Murray
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Patent number: 4753912Abstract: A novel catalyst comprises (i) an organophosphorus-containing compound, (ii) a compound, which is reactable in the Michael reaction, and contains both (a) a double or triple bond and (b) an electron withdrawing group and (iii) an alcohol or a mixture of an alcohol and a solvent. The novel catalyst may be generated from a novel catalyst precursor. The catalyst may be used to transesterify carboxylic or carbonic acid esters, to produce formate esters from alcohols and carbon monoxide and to produce formamides from amines and carbon monoxide.Type: GrantFiled: May 3, 1984Date of Patent: June 28, 1988Assignee: BP Chemicals LimitedInventor: Michael J. Green
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Patent number: 4724267Abstract: Bis(haloacylaromatic) compounds have been made by a new process in which monohaloacylated aromatic compounds have been reacted by a coupling reaction. These bis(haloacylaromatic) compounds can be employed as monomers in the preparation of polyesters and polyamides which have easy processability. The monohaloacylated compound is coupled by reacting two moles of the monomer with a carbon or sulfur compound containing at least two halogen atoms in the presence of a Friedel-Crafts catalyst.Type: GrantFiled: May 23, 1986Date of Patent: February 9, 1988Assignee: The Dow Chemical CompanyInventors: George M. St. George, Marlin E. Walters
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Patent number: 4716138Abstract: An oligomerization or cooligomerization process comprising passing ethylene or a mixture of ethylene and propylene in contact with a catalyst, in the liquid phase, said catalyst comprising the reaction product of (i) a transition metal compound wherein the transition metal is selected from the group consisting of nickel, chromium, cobalt, iron, and copper, and mixtures thereof and (ii) at least one organophosphorus sulfonate ligand.Type: GrantFiled: December 12, 1986Date of Patent: December 29, 1987Assignee: Union Carbide CorporationInventor: Rex E. Murray
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Patent number: 4684671Abstract: There is provided an energy beam curable resin composition which comprises as an essential component a cationically polymerizable substance and an effective amount of an onium salt of a Lewis acid represented the following formula (I). ##STR1## [where X is a sulfonio group represented by the following formula (II)]. ##STR2## (where at least one of R.sub.1 -R.sub.10 is (A) a C.sub.1 -C.sub.18 aliphatic group having at least one hydroxyl group or (B) a C.sub.3 -C.sub.19 aliphatic group having a group of --OCH.sub.2 CH.sub.2 O--).Type: GrantFiled: April 9, 1986Date of Patent: August 4, 1987Assignee: Asahi Denka Kogyo K.K.Inventors: Hiroshi Tsuchiya, Kazuhiko Morio, Hisashi Murase, Kazuo Ohkawa
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Patent number: 4683317Abstract: Aryliodonium salts resulting from the condensation of aryliodosotosylates and aryl ketones are provided which are used as photoinitiators to effect deep section UV cures. Deep section photopolymerizable organic materials are also provided which can be used as encapsulating agents to encapsulate a wide variety of electronic components.Type: GrantFiled: April 8, 1985Date of Patent: July 28, 1987Assignee: General Electric CompanyInventors: James V. Crivello, Julia L. Lee
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Patent number: 4668823Abstract: A process for the selective production of bulky alkyldiarylphosphines and unsymmetrical dialkylarylphosphines comprising reacting a first Grignard reagent having a bulky alkyl group with an aryldichlorophosphine and thereafter and without isolating the resulting bulky alkylarylchlorophosphine intermediate, reacting said intermediate with a second Grignard reagent having a different, less bullky alkyl group or an aryl group to provide the product phosphine.Type: GrantFiled: December 30, 1983Date of Patent: May 26, 1987Assignee: Union Carbide CorporationInventor: Rex E. Murray
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Patent number: 4668824Abstract: Essentially pure tri-(m-sulfophenyl)-phosphine, well suited as a ligand for the formation of, e.g., rhodium-based olefin hydroformylation catalysts, is facilely prepared by (i) sulfonating triphenylphosphine with oleum, H.sub.2 SO.sub.4 /SO.sub.3, wherein the temperature of sulfonation ranges from 15.degree. to about 25.degree. C., the molar ratio of SO.sub.3 /triphenylphosphine is at least 8, and the amount by weight of SO.sub.3 in the mixture (SO.sub.3 +H.sub.2 SO.sub.4 +triphenylphosphine) at the beginning of said sulfonation reaction is at least 33%; and (ii) thence terminating said sulfonation reaction via hydrolysis of the reaction mixture.Type: GrantFiled: July 30, 1984Date of Patent: May 26, 1987Assignee: Rhone-Poulenc RecherchesInventors: Jean Jenck, Didier Morel
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Patent number: 4647702Abstract: A method for the dehydroxylation of alpha-hydroxyketone using lithium diphenylphosphide. The alpha-hydroxyketone, e.g. benzoin, is reacted with a solution of lithium diphenylphosphide followed by the addition of either an alkyl halide, e.g. methyliodide, or an alkyl halide and an organic acid, e.g. acetic acid, to yield the dehydroxylated compound, e.g. desoxybenzoin.Type: GrantFiled: November 18, 1985Date of Patent: March 3, 1987Assignee: Stauffer Chemical CompanyInventor: Andrea Leone-Bay
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Patent number: 4633020Abstract: The invention relates to a novel fluorinated pre-polymer and novel process steps in producing the same. The pre-polymers are quinoxaline materials derived by reaction of diketone linkage containing perfluoro-compounds with an aromatic diamine. The diketone is produced by oxidatively dechlorinating a polychloroketone which may be a monoketone or a bis-ketone. The polychloroketone is produced by reacting a keto-ylid with a chlorinating agent, e.g., chlorine. The keto-ylid is produced by reacting a phosphorane with an acid halide of a polyoxy-perfluoroalkylene oxide wherein the perfluoro-oxyalkylene group contains two or three carbon atoms, and there are present from two to twenty perfluoro-oxyalkylene units in the oligomer. The quinoxalines, the polychloroketones and the diketones hereof are novel products. Cross-linking may be effected with a free radical generator.Type: GrantFiled: October 2, 1985Date of Patent: December 30, 1986Assignee: SCM CorporationInventor: Keith B. Baucom
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Patent number: 4556740Abstract: Novel chiral phosphorus compounds of the general formula ##STR1## wherein R signifies substituted or unsubstituted phenyl, R.sup.1 and R.sup.2, which can be the same or different, signify hydrogen, lower alkyl, lower alkoxy, di-lower alkylamino or protected hydroxymethyl or R.sup.1 and R.sup.2 together signify the group ##STR2## in which m represents a number 3 to 5, R.sup.4 represents lower alkyl, substituted or unsubstituted phenyl or benzyl and R.sup.5 represents lower alkyl or both R.sup.5 's together represent lower alkylene, R.sup.3 signifies methyl, lower alkoxy, di-lower alkylamino or fluorine and n signifies the number 0, 1, 2 or 3, are described.The compounds of formula I are useful in the form of complexes with a metal of Group VIII as catalysts for asymmetric hydrogenations and enantioselective hydrogen displacements in prochiral allylic systems.Type: GrantFiled: August 19, 1983Date of Patent: December 3, 1985Assignee: Hoffmann-La Roche Inc.Inventors: Hans-Jurgen Hansen, Rudolf Schmid
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Patent number: 4537725Abstract: New diaryliodosyl salts have the formula ##STR1## where R.sup.7 and R.sup.8, which may be the same or different, each represent a monovalent aromatic radical of from 6 to 22 carbon atoms,Z.sup.t- denotes a t-valent anion of formula MX.sub.n.sup.- or R.sup.9 SO.sub.3.sup.- or a t-valent anion of a halogen-free inorganic oxy acid,t is 1, 2 or 3,M represents an atom of a metal or metalloid,X denotes a halogen atom, preferably of fluorine or chlorine,n is 4, 5, or 6 and is one more than the valency of M, with the proviso that MX.sub.n.sup.- can represent SbOHF.sub.5.sup.-, andR.sup.9 denotes a monovalent aliphatic or aromatic group of 1 to 20 carbon atoms.These salts have utility as photocuring catalysts for cationically polymerizable materials such as epoxide resins and phenolic resins.Type: GrantFiled: September 9, 1983Date of Patent: August 27, 1985Assignee: Ciba-Geigy CorporationInventor: Edward Irving
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Patent number: 4526776Abstract: An hepatobiliary imaging agent is disclosed which is a cationic complex of Tc-99m, a cyanate or thiocyanate ion, and a mono or polydentate organic ligand having one or more donor atoms, each with a free-electron pair available for accepting a proton or for complexing with Tc-99m to form a cationic complex. These complexes can provide images of the hepatobiliary transit in as little as ten minutes.Type: GrantFiled: April 15, 1983Date of Patent: July 2, 1985Assignee: E. I. du Pont de Nemours & CompanyInventors: Vinayakam Subramanyam, Algis Rajeckas
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Patent number: 4512967Abstract: A cationic lipophilic complex of technetium is disclosed wherein all of the coordination positions of the technetium atom are filled with a neutral donor atom having a pair of electrons available for forming a coordinate bond with technetium. The donor atoms are provided by target-seeking ligands or salts thereof, said ligands having the following structure of one of formulas I, II or III. Such complexes are useful for imaging heart and hepatobiliary tissues.Type: GrantFiled: August 2, 1982Date of Patent: April 23, 1985Assignee: E. I. Du Pont de Nemours and CompamyInventor: Karen E. Linder
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Patent number: 4507247Abstract: There are provided novel sulfonated Group Va ylides defined by the following Formula I: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.Type: GrantFiled: February 25, 1983Date of Patent: March 26, 1985Assignee: Gulf Research & Development CompanyInventors: David L. Beach, James J. Harrison
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Patent number: RE32826Abstract: A cationic lipophilic complex of technetium is disclosed wherein all of the coordination positions of the technetium atom are filled with a neutral donor atom having a pair of electrons available for forming a coordinate bond with technetium. The donor atoms are provided by target-seeking ligands or salts thereof, said ligands having the following structure of one of formulas I, II or III. Such complexes are useful for imaging heart and hepatobiliary tissues.Type: GrantFiled: February 6, 1987Date of Patent: January 10, 1989Assignee: E. I Du Pont de Nemours and CompanyInventor: Karen E. Linder