The Five-membered Hetero Ring, Except For The =x To The Ring, Is Unsubstituted Or Hydrocarbyl Substituted Only Patents (Class 549/230)
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Patent number: 5153333Abstract: A process for the preparation of 2-oxo-1, 3-dioxolanes comprises reacting an epoxy compound having at least one functional epoxy group in the optional presence of an inert solvent with carbon dioxide at 60.degree. C. to 200.degree. C. at normal pressure in the presence of a quaternary phosphonium compound as catalyst and novel quaternary phosphonium compounds useful as catalysts in the said process.Type: GrantFiled: September 17, 1991Date of Patent: October 6, 1992Assignee: Rutgerswerke AGInventors: Frank Schubert, Rolf Herzog, Bert Meier, Jurgen Zehrfeld
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Patent number: 5138073Abstract: Alkylene carbonates, particularly ethylene carbonate, are prepared by the reaction of an alkylene oxide with carbon dioxide in the presence of a catalyst at temperatures in the region of the critical temperature of carbon dioxide, preferably 25.degree.-70.degree. C. and at autogenerated pressures, typically 30 to 200 kg/cm.sup.2 gauge. The conversion of alkylene oxide to alkylene carbonate can be carried out in the presence of water while minimizing the undesirable hydrolysis of the carbonate to the corresponding alkylene glycol. With certain catalysts the presence of water improves the selectivity to the formation of the carbonate.Type: GrantFiled: March 26, 1990Date of Patent: August 11, 1992Assignee: Scientific Design Company, Inc.Inventor: Robert J. Harvey
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Patent number: 5118818Abstract: Organic carbonates: ##STR1## and cyclic organic carbonates: ##STR2## are prepared by reacting an alcohol (R--OH), or respectively a diol (HO--R'--OH), with carbon monoxide, in the presence of:a halogen, ora halogen and/or a halide ion and an oxidizing agent.Type: GrantFiled: March 6, 1991Date of Patent: June 2, 1992Assignee: Enichem Synthesis S.p.A.Inventors: Daniele Delledonne, Franco Rivetti, Ugo Romano
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Patent number: 5095124Abstract: The present invention relates to a two-stage liquid phase process wherein an alk-2-enyl glycidyl ether having the formula ##STR1## wherein R is hydrogen or lower alkyl; R' is C.sub.2 to C.sub.4 alkylene; n has a value of from 1 to 4 and n' has a value of from 0 to 4, is catalytically isomerized to the corresponding alk-1-enyl glycidyl ether in the first-stage of the reaction and the reaction mixture of the first-stage, containing the isomerization catalyst is then contacted with carbon dioxide in the presence of a phase transfer catalyst under a pressure ranging from atmospheric to about 400 psig in the second stage of the reaction.Type: GrantFiled: September 10, 1990Date of Patent: March 10, 1992Assignee: ISP Investments Inc.Inventors: Jeffrey S. Plotkin, Mark M. Miller, Paul D. Taylor
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Patent number: 5091543Abstract: A method of preparing five- and six-membered cyclic carbonates is disclosed. The process comprises reacting a 1,2- or 1,3-diol with an acyclic diester of carbonic acid in the presence of a catalyst selected from alkylammonium salts, tertiary amines, and ion-exchange resins containing alkylammonium or tertiary amino groups. Cyclic carbonates free of polycarbonate by-products are obtained in high yields.Type: GrantFiled: October 15, 1990Date of Patent: February 25, 1992Assignee: Arco Chemical Technology, Inc.Inventor: Roger A. Grey
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Patent number: 5023345Abstract: Alkylene carbonates, particularly ethylene carbonate, are prepared by the reaction of an alkylene oxide with carbon dioxide in the presence of a catalyst at temperatures in the region of the critical temperature of carbon dioxide, preferably 25.degree.-70.degree. C. and at autogenerated pressures, typically 30 to 200 kg/cm.sup.2 gauge. The conversion of alkylene oxide to alkylene carbonate can be carried out in the presence of water while minimizing the undesirable hydrolysis of the carbonate to athe corresponding alkylene glycol. With certain catalysts the presence of water improves the selectivity to the formation of the carbonate.Type: GrantFiled: March 22, 1989Date of Patent: June 11, 1991Assignee: Scientific Design Company, Inc.Inventor: Robert J. Harvey
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Patent number: 5003084Abstract: Disclosed is a process for preparing alkylene carbonates which comprises reacting the corresponding alkylene glycol and urea, optionally in the presence of a catalyst comprising a tin-containing compound, and represented by the equation: ##STR1## where R represents an alkyl group containing 1 to 16 carbons.Type: GrantFiled: February 20, 1990Date of Patent: March 26, 1991Assignee: Texaco Chemical CompanyInventors: Wei-Yang Su, George P. Speranza
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Patent number: 4996231Abstract: This invention relates to triyne cyclic carbonates that are useful in the treatment of fungal diseases and hypercholesterolemic conditions.Type: GrantFiled: August 8, 1989Date of Patent: February 26, 1991Assignee: Merck & Co., Inc.Inventors: Michael N. Chang, Yuan-Ching P. Chiang, James V. Heck, Michael D. Lewis
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Patent number: 4985456Abstract: (5-methyl-2-oxo-1,3-dioxolen-4-yl)methyl 2-(2,6-dichloroanilino)phenylacetate is disclosed as a novel compound possessing strong valuable pharmacological properties accompanied by surprisingly weak side-effects as well as a process for preparing the new compound.Type: GrantFiled: February 9, 1990Date of Patent: January 15, 1991Assignees: Mikasa Seiyaku Co., Ltd., Daito Koeki Kabushiki KaishaInventors: Keisuke Shimizu, Takumi Matsumura, Masato Nakamoto
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Patent number: 4931571Abstract: An alkylene oxide, e.g. ethylene oxide, is prepared from the corresponding alkylene carbonate, e.g. ethylene carbonate, in the presence of an effective amount of a quaternary arsonium halide. The quaternary arsonium halides are also effective catalysts for the reverse reaction, that is, to form alkylene carbonates from the corresponding epoxide and carbon dioxide.Type: GrantFiled: April 10, 1989Date of Patent: June 5, 1990Assignee: Scientific Design Company, Inc.Inventor: Robert M. Weinstein
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Patent number: 4892954Abstract: Process for the preparation of 2-oxo-1,3-dioxolanes by reaction of epoxides with carbon dioxide in the presence of a catalyst, wherein at least one epoxy compound is mixed with at least one catalyst in the presence or absence of an inert solvent and is reacted at temperatures from 40.degree. to 180.degree. C. while introducing carbon dioxide at normal pressure or slightly increased pressure to form the corresponding organic carbonates. The 2-oxo-1,3-dioxolanes obtained are used to prepare synthetic resins containing urethane groups in the form of coatings and molded bodies.Type: GrantFiled: October 21, 1987Date of Patent: January 9, 1990Assignee: Hoechst AGInventors: Gerhard Brindopke, Manfred Marten
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Patent number: 4880942Abstract: Cyclic carbonates are prepared by reacting a 1,3-diol or 1,2-diol with a dialkylcarbonate in the presence of a basic catalyst. They are obtained in higher yields with higher purity by subjecting the reaction mixture to heat aging under vacuum in the presence of the basic catalyst, and recovering the cyclic carbonate from the mixture.Type: GrantFiled: July 21, 1988Date of Patent: November 14, 1989Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Yoshihisa Kiso, Yuuichi Matsunaga, Masao Imagawa
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Patent number: 4877886Abstract: Cyclic alkylene carbonates are produced by the homogeneous catalytic reaction of alkylene oxides with carbon dioxide during which process, polyglycols are formed. The catalyst is separated by distallation from the alkylene carbonate and is recycled to the reaction while associated with polyglycols. A purge stream is removed from the recycle to prevent an undue concentration of polyglycols in the reaction and catalyst is separated from the purge stream by acylation of the polyglycols enabling precipitation of the catalyst.Type: GrantFiled: June 19, 1987Date of Patent: October 31, 1989Assignee: Union Carbide Chemicals and Plastics Company Inc.Inventor: Bernard C. Ream
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Patent number: 4851555Abstract: An alkylene oxide, e.g. ethylene oxide, is prepared from the corresponding alkylene carbonate, e.g. ethylene carbonate, in the presence of an effective amount of a quaternary arsonium halide. The quaternary arsonium halides are also effective catalysts for the reverse reaction, that is, to form alkylene carbonates from the corresponding epoxide and carbon dioxide.Type: GrantFiled: October 25, 1984Date of Patent: July 25, 1989Assignee: Scientific Design Company, Inc.Inventor: Robert M. Weinstein
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Patent number: 4841072Abstract: Alkylene carbonates, particularly ethylene carbonate, are prepared by the reaction of an alkylene oxide with carbon dioxide in the presence of a catalyst at temperatures in the region of the critical temperature of carbon dioxide, preferably 25.degree.-70.degree. C. and at autogenerated pressures, typically 30 to 200 kg/cm.sup.2 gauge. The conversion of alkylene oxide to alkylene carbonate can be carried out in the presence of water while minimizing the undesirable hydrolysis of the carbonate to the corresponding alkylene glycol. With certain catalysts the presence of water improves the selectivity to the formation of the carbonate.Type: GrantFiled: June 7, 1983Date of Patent: June 20, 1989Assignee: Scientific Design Company, Inc.Inventor: Robert J. Harvey
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Patent number: 4835289Abstract: A process for the preparation of 2-oxo-1,3-dioxolanes by reaction of epoxides with carbon dioxide in the presence of alkali iodides wherein at least one epoxy compound is reacted in the presence or absence of inert solvent either with a combination of A) at least one alkali iodide and B) at least one compound of the group a) polyol and b) an ether or polyether or, if the epoxy compound already has the structural features of the compounds Ba) and Bb), with the alkali iodide A) alone, at temperatures from 40.degree. to 180.degree. C. while introducing carbon dioxide at normal pressure or at slightly increased pressure, to form the corresponding organic carbonates. The 2-oxo-1,3-dioxolanes obtained are used for the preparation of synthetic resins, containing urethane groups, in the form of coatings of molded bodies.Type: GrantFiled: January 8, 1987Date of Patent: May 30, 1989Assignee: Hoechst AGInventor: Gerhard Brindopke
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Patent number: 4824969Abstract: A process for reacting in admixture, an olefin with oxygen, CO, and water, to form a cyclic alkylene carbonate, in the presence of a catalyst composition comprising a catalytically active osmium compound, copper containing co-catalyst I (e.g. CuBr.sub.2) and a co-catalyst II (e.g. pyridine) is disclosed.Type: GrantFiled: December 24, 1984Date of Patent: April 25, 1989Assignee: Exxon Research & Engineering Co.Inventors: Richard G. Austin, Robert C. Michaelson, Richard S. Myers
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Patent number: 4786741Abstract: Alkylene carbonates, particularly ethylene carbonate, are prepared by the reaction of an alkylene oxide with carbon dioxide in the presence of a catalyst at temperatures ranging upwards from 20.degree. C., particularly temperatures above about 90.degree. C., preferably 90.degree.-170.degree. C. The conversion of alkylene oxide to alkylene carbonate can be carried out in the presence of water while minimizing the undesirable hydrolysis of the carbonate to the corresponding alkylene glycol and formation of higher glycols. This is achieved by maintaining the water to alkylene oxide molar ratio and the carbon dioxide to alkylene oxide ratio within the stated limits and adjusting the carbon dioxide partial pressure to provide the desired selectivity to alkylene carbonate.Type: GrantFiled: November 15, 1982Date of Patent: November 22, 1988Assignee: Scientific Design Company, Inc.Inventor: Howard M. Sachs
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Patent number: 4758615Abstract: Polymers which contain urethane groups and are capable of being crosslinked by extraneous crosslinking agents, solutions thereof and aqueous dispersions thereof, prepared without the use of isocyanates by reacting polyamino compounds with polycarbonates and, if appropriate, reacting the reaction product further with polycarboxylic acids to give products having an acid number between 0 and 100, and, if appropriate, neutralizing the resulting products partly or completely by adding basic compounds, preferably organic bases, and, if appropriate, mixing the partly or completely neutralized products vigorously with an amount of water such that aqueous polymer dispersions having a solids content of up to 75% by weight, relative to the dispersion, are obtained.Type: GrantFiled: May 22, 1987Date of Patent: July 19, 1988Assignee: Hoechst AGInventors: Dieter Engel, Christoph Just, Gerhard Brindopke, Gerd Walz
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Patent number: 4746447Abstract: Disclosed are additives which are useful as dispersants in marine crankcase oils and hydraulic oils, lubricating oils. In particular, disclosed are hydrocarbyl-substituted polyamines having at least one primary or secondary amino group which have been modified by treatment with a cyclic carbonate.Type: GrantFiled: January 10, 1986Date of Patent: May 24, 1988Assignee: Chevron Research CompanyInventor: Robert H. Wollenberg
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Patent number: 4663467Abstract: This invention is a composition comprising(a) a p-hydrocarbylphenylporphyrinato chromium or aluminum with axial counterions; and(b) an aliphatic amine, a heterocyclic amine, an aromatic amine, a phosphine or a phosphine oxide.Another aspect of this invention is a process for the preparation of an alkylene carbonate which comprises contacting an epoxide with a carbon dioxide in the presence of a catalytic amount of the hereinbefore-described composition.Type: GrantFiled: March 5, 1984Date of Patent: May 5, 1987Assignee: The Dow Chemical CompanyInventors: William J. Kruper, Jr., David V. Dellar
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Patent number: 4658041Abstract: Carbonate compounds are prepared by equilibrium interchange of carbonate functionality between lower alkyl carbonates especially dimethyl carbonate and alkyl halides such as allyl chloride at about 50.degree. C. to about 250.degree. C. in the presence of an initiator such as homogeneous or heterogeneous amines, phosphines, and ammonium or phosphonium quaternary salts.Type: GrantFiled: September 24, 1982Date of Patent: April 14, 1987Assignee: The Dow Chemical CompanyInventor: James M. Renga
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Patent number: 4656305Abstract: The present invention provides chalcone derivatives of the general formulae: ##STR1## wherein R.sub.1 is a hydroxyl, carboxylic or sulphonic acid group or a carboxyalkoxy or sulphoalkoxy radical, R.sub.2 is an unsaturated, straight-chained or branched aliphatic hydrocarbonyloxy radical, R.sub.3 is a hydrogen atom, a hydroxyl group or an alkoxy radical, R.sub.4 is an alkyl, hydroxyalkyl, alkoxy, carboxyalkoxy, sulphoalkoxy or carboxyalkylcarbonyloxyalkyl radical or a carboxylic acid or sulphonic acid group and R.sub.5 is a hydrogen or halogen atom, with the proviso that compounds of general formula (IIa) always contain at least one carboxylic or sulphonic acid group; and the nontoxic inorganic and organic salts of those compounds containing at least one carboxylic acid or sulphonic acid group.The present invention also provides a process for the preparation of these chalcone derivatives, as well as pharmaceutical compositions containing them.Type: GrantFiled: October 18, 1985Date of Patent: April 7, 1987Assignee: Biorex Laboratories, LimitedInventors: Anthony E. Vanstone, Graham K. Maile, Lynn K. Nalbantoglu
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Patent number: 4652667Abstract: A process is provided for the transesterification of carbonate esters and carboxylic acid esters at elevated temperatures and in the presence of an effective amount of an amidine compound.Type: GrantFiled: January 18, 1985Date of Patent: March 24, 1987Assignee: BP Chemicals LimitedInventor: Michael J. Green
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Patent number: 4537906Abstract: Substituted phenylalkenoic acids and esters of the formula: ##STR1## having useful pharmaceutical activity are disclosed.Type: GrantFiled: December 6, 1982Date of Patent: August 27, 1985Assignee: Merck Frosst Canada, Inc.Inventors: Patrice C. Belanger, John W. Gillard
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Patent number: 4536515Abstract: Substituted phenylalkenoic acids and esters of the formula: ##STR1## having useful pharmaceutical activity are disclosed.Type: GrantFiled: December 6, 1982Date of Patent: August 20, 1985Assignee: Merck Frosst Canada, Inc.Inventors: Patrice C. Belanger, John W. Gillard
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Patent number: 4483996Abstract: A process for converting a desired olefin to the corresponding olefin oxide, such as propylene oxide, and/or ketone comprising reacting a mixture of the olefin, thallic oxide, carbon dioxide and water in a substantially organic solvent-free reaction zone; withdrawing a product stream from the reaction zone, the stream comprising the olefin and ketone product; separating and collecting the olefin oxide and ketone product from the stream; contacting the reduced thallous values present in the mixture with molecular oxygen and an effective catalyst to back oxidize the thallous values to their original thallic form; separating and recycling back to the reaction mixture the regenerated thallic values.Type: GrantFiled: February 22, 1983Date of Patent: November 20, 1984Assignee: The Halcon SD Group, Inc.Inventor: Stephen E. Jacobson
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Patent number: 4483994Abstract: A process for the production of alkylene carbonates, such as propylene carbonate, is disclosed. The process involves reacting the desired olefin with a thallic oxide or a weak acid thallic salt with carbon dioxide in an aqueous, organic solvent containing, halogen-free system.Type: GrantFiled: February 22, 1983Date of Patent: November 20, 1984Assignee: The Halcon SD Group, Inc.Inventor: Stephen E. Jacobson
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Patent number: 4400559Abstract: Ethylene glycol is prepared by a process in which ethylene oxide is extracted from an aqueous solution with near-critical or super-critical carbon dioxide. Thereafter an ethylene oxide--carbon dioxide--water mixture is contacted with a catalyst to form ethylene carbonate, which is then hydrolyzed to ethylene glycol in the presence of the same catalyst. The ethylene glycol is separated as product and the carbon dioxide and the catalyst are recycled.Type: GrantFiled: June 14, 1982Date of Patent: August 23, 1983Assignee: The Halcon SD Group, Inc.Inventor: Vijay S. Bhise
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Patent number: 4353831Abstract: Hexachloroacetone and a vicinal alkylene diol react when heated together in the presence of a weak base to produce chloroform and the cyclic alkylene carbonate. The chloroform distills from the reaction mixture substantially as it is formed and the alkylene carbonate is readily separable from the residual mixture.Type: GrantFiled: February 2, 1981Date of Patent: October 12, 1982Assignee: The Dow Chemical CompanyInventors: Paul E. Strege, James M. Renga
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Patent number: 4344881Abstract: A lower alkyl trichloroacetate and a vicinal alkylene diol react when heated together in the presence of a weak base to produce chloroform, a lower alkanol, and the cyclic alkylene carbonate. The chloroform and lower alkanol distill from the reaction mixture substantially as formed and the alkylene carbonate is readily separable from the residual mixture.Type: GrantFiled: February 2, 1981Date of Patent: August 17, 1982Assignee: The Dow Chemical CompanyInventors: Paul E. Strege, James M. Renga
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Patent number: 4332729Abstract: The thermal decomposition of a halogenated aliphatic carbonate at about 100.degree. C.-300.degree. C. to produce a cyclic carbonate and an aliphatic halide is accelerated by the presence of chemically combined mercury.Type: GrantFiled: July 17, 1981Date of Patent: June 1, 1982Assignee: The Dow Chemical CompanyInventors: James M. Renga, Roy A. Periana-Pillai
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Patent number: 4331604Abstract: The thermal decomposition of a .beta.-halogenated aliphatic carbonate at about 100.degree. C.-300.degree. C. to produce a cyclic alkylene carbonate and an aliphatic halide is accelerated by the presence of a polar solvent, preferably the cyclic carbonate product. Further improvement may be obtained when there is additionally present a mercury compound.Type: GrantFiled: July 17, 1981Date of Patent: May 25, 1982Assignee: The Dow Chemical CompanyInventors: James M. Renga, Roy A. Periana-Pillai
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Patent number: RE33109Abstract: The present invention provides chalcone derivatives of the general formulae: ##STR1## wherein R.sub.1 is a hydroxyl, carboxylic or sulphonic acid group or a carboxyalkoxy or sulphoalkoxy radical, R.sub.2 is an unsaturated, straight-chained or branched aliphatic hydroxycarbonyloxy radical, R.sub.3 is a hydrogen atom, a hydroxyl group or an alkoxy radical, R.sub.4 is an alkyl, hydroxyalkyl, alkoxy, carboxyalkoxy, sulphoalkoxy or carboxyalkylcarbonyloxyalkyl radical or a carboxylic acid or sulphonic acid group and R.sub.5 is a hydrogen or halogen atom, with the proviso that compounds of general formula (IIa) always contain at least one carboxylic or sulphonic acid group; and the nontoxic inorganic and organic salts of those compounds containing at least one carboxylic acid or sulphonic acid group.The present invention also provides a process for the preparation of these chalcone derivatives, as well as pharmaceutical compositions containing them.Type: GrantFiled: April 8, 1988Date of Patent: November 7, 1989Assignee: Biorex Laboratories LimitedInventors: Anthony E. Vanstone, Graham K. Maile, Lynn K. Nalbantoglu