Class 570/253 - Catalyst or reacton directing agent utilized

Subclass of Class 570 - Organic compounds -- part of the class 532-570 series
Definition: Process including a catalyst which promotes the reaction
No. of patents: 33
Last issue date: 04/29/2008

Number	Title	Issue Date
7365091	Derivatives of succinic and glutaric acids and analogs thereof useful as inhibitors of PHEX The present invention relates to derivatives of succinic and glutaric acids and analogues thereof, having the following general formula: useful as inhibitors of PHEX. These derivatives are useful fo...	04/29/2008
7102042	Method for producing substituted fluorene monomers A method for preparing a composition of the formula in a yield greater than 50% where R1 is C 1-20 comprising the steps of combining fluorene or dibromo flourene, an excess of alkali metal hydroxide and a ha...	09/05/2006
6956143	Process for dissolving salts in 1,2-dichloroethane using ultrasound and a device for carrying out said process The invention relates to a process and a device for the dissolution of salt that is hardly soluble, especially sodium chloride and other poorly soluble salts in 1,2 dichloroethane, which primarily are to be used in direct chlorination plants for the production of 1,...	10/18/2005
6841708	Method of producing ethylene (di)chloride (EDC) With a method or a device for producing 1,2-dichloroethane or ethylene (di)chloride (EDC) with the use of a circulating reaction medium and a catalyst, whereby ethylene and chlorine are supplied to the reaction medium, the goal is to permit the catalytic chlorinatio...	01/11/2005
6008420	Process for the production of halogen methyl cyclopropanes and highly pure halogen methyl cyclopropanes The invention relates to a process for the preparation of halogenomethylcyclopropanes....	12/28/1999
5789580	Selectively fluorinated organic compounds A process for the preparation of a selectively fluorinated organic compound, which process includes reaction of a precursor of said organic compound, the precursor containing at least one Group VI element selected from sulfur, selenium and tellurium, with...	08/04/1998
5703248	Process for the selective trihalogenation of ketones useful as intermediates in the synthesis of thiophenes The present invention concerns a novel process for the selective trihalogenation of ketones employing organic halogen salts....	12/30/1997
5504173	Chemical process Process for preparing the (E)-isomer of a compound (II) by contacting the (E) or (Z) isomer of the 2-methylphenyl precursor, or a mixture of both, with bromine in an organic solvent, in the presence of a polymeric base and light. ##STR1##...	04/02/1996
5382727	Concurrent production of trichloroethane isomers 1,1,1-Trichloroethane (viz., methylchloroform) and 1,1,2-trichloroethane are produced in the same reactor by feeding molecular chlorine and chloroethene (viz., vinyl chloride) as well as 1,1-dichloroethane to the reactor. The ratios at which the two trich...	01/17/1995
5315052	Concurrent production of trichloroethane isomers 1,1,1-Trichloroethane (viz., methylchloroform) and 1,1,2-trichloroethane are produced in the same reactor by feeding molecular chlorine and chloroethene (viz., vinyl chloride) as well as 1,1-dichloroethane to the reactor. The ratios at which the two trich...	05/24/1994
5276226	Low temperature halogenation of alkanes The invention relates to a process for selectively producing alkyl halides from alkanes, such as methane and ethane at relatively mild temperatures and pressures in an organic liquid phase in the presence of halogen and transition metal complex. The alkan...	01/04/1994
5144067	Process for the coproduction of alkyl iodides and alpha-iodocarboxylic acids and/or anhydrides thereof Disclosed is a process for the coproduction of (1) an alkyl iodide and (2) an ଱-iodocarboxylic acid, a mono-଱-iodocarboxylic anhydride or a mixture thereof which comprises contacting a mixture of an iodine compound and a carboxylic anhydride w...	09/01/1992
5099085	Chlorination reactions and oxychlorination reactions in the presence of honeycomb monolithic catalyst supports The use of hitherto known supported catalysts in chlorination processes and oxychlorination processes leads to high pressure drops and to the formation of hot spot temperatures in the reactor. When honeycomb monolithic catalyst supports provided with a mu...	03/24/1992
4990708	Process for the preparation of dibromomethane A process for the preparation of dibromomethane is described, in which gaseous methyl bromide and bromide are reacted as temperatures of 300° C. or higher. The reaction is highly selective to DBM and almost quantitative Br2 conversion is obtai...	02/05/1991
4978435	Free chlorine removal process Free chlorine values are removed by radical chlorination from uncombined admixtures thereof, notably admixtures of free chlorine and at least one halogenated organic compound that is not completely chloro-substituted....	12/18/1990
4783564	Method for the preparation of 1,2-dichloroethane A method is disclosed for the preparation of 1,2-dichloroethane in a reactor by the reaction of gaseous ethylene with chlorine dissolved in a hot, catalyst-containing, liquid circulating stream that is under elevated pressure and consists of chlorinated h...	11/08/1988
4689130	Continuous production of higher chloroalkanes The higher chloroalkanes, advantageously the higher chloromethanes, are continuously produced from at least one lesser chloroalkane, by (i) continuously introducing chlorine and said at least one lesser chloroalkane into a stream of reaction medium contin...	08/25/1987
4672142	Process for making 1,2-dichloroethane The disclosure relates to a process for making 1,2-dichloroethane by reacting ethylene and chlorine in a reaction zone having a liquid medium containing chlorinated C2 -hydrocarbons circulated therein. To this end, the disclosure provides: (a) ...	06/09/1987
4661648	Process for carrying out substitution chlorination reactions of organic compounds by means of molecular chlorine in the presence of a chlorinated product serving as a radical initiator, and radical initiators used in such a process The substitution chlorination reactions of organic compounds are carried out by means of molecular chlorine, using, as a radical initiator, decachlorobutane or an octachlorobutane such as octachlorobut-1-ene or a mixture containing these two products. Goo...	04/28/1987
4650914	Process for producing 1,1,2,3-tetrachloropropene A process is disclosed for preparing 1,1,2,3-tetrachloropropene comprising allylic rearrangement of 2,3,3,3-tetrachloropropene using a substantially anhydrous ferric chloride catalyst. Alternatively, 1,1,2,3-tetrachloropropene is prepared by dehydrochlori...	03/17/1987
4614572	Liquid phase chlorination of chlorinated methanes This invention relates to an improved liquid phase chlorination process for the chlorination of methyl chloride to preferentially produce methylene chloride. The chlorine is provided to the reaction mixture in a mole percent, based upon the total moles of...	09/30/1986
4605801	Molecular sieves as catalysts for preparation of 1,1,2-trichloroethane The process is an improvement over the chlorination of EDC in a boiling bed. The reactants, chlorine and dichloroethane (either 1,1- or 1,2-) are mixed in the vapor phase and passed over a molecular sieve which serves as a catalyst to produce 1,1,2-trichl...	08/12/1986
4567280	Process for producing iodo-aromatic compounds In a process for producing an iodo-aromatic compound which comprises iodinating an aromatic compound having an electron-donating substituent bonded to the benzene ring with iodine in the presence of a solvent, the improvement wherein about 1/2 to about 10...	01/28/1986
4554392	Method of preparing 1,2-dichloroethane from ethylene and chlorine gas In this method of producing 1,2-dichloroethane from ethylene and chlorine gas in an approximately equimolar ratio at reaction pressures between 2 and 20 bar, at ethylene dichloride boiling temperatures between 105° and 225° C., in the presence of cataly...	11/19/1985
4535194	Process for producing 1,1,2,3-tetrachloropropene A process is disclosed for preparing 1,1,2,3-tetrachloropropene comprising allylic rearrangement of 2,3,3,3-tetrachloropropene using a substantially anhydrous ferric chloride catalyst. Alternatively, 1,1,2,3-tetrachloropropene is prepared by dehydrochlori...	08/13/1985
4523040	Methyl halides and methyl alcohol from methane This invention relates to solid acidic or metal catalyst-promoted halogenation of methane to produce methyl monohalides in high selectivity. Concurrent or simultaneous hydrolysis provides methyl alcohol and/or dimethyl ether in good yields....	06/11/1985
4351972	Process for making anhydrous alkyl iodides The invention relates to the production of anhydrous alkyl iodides. To this end, carboxylic acid alkyl esters of the formula R1 COOR2, in which R1 stands for hydrogen or an alkyl or aryl radical having from 1 to 8 carbon a...	09/28/1982
4301314	Vapor phase chlorination of 1,1-dichloroethane In the preparation of methylchloroform by vapor phase chlorination of 1,1-dichloroethane, the formation of undesirable chlorohydrocarbon reaction products is suppressed by conducting the vapor phase reaction in the presence of a controlled amount of eleme...	11/17/1981
4255597	Process for preparing hexachlorocyclopentadiene There is disclosed a process for the production of hexachlorocyclopentadiene comprising the steps of: 1. Reacting liquid cyclopentadiene and chlorine at a temperature of from about 0° to about 100° C. until an average of at least 4 chlorine atoms has be...	03/10/1981
4192823	Vapor phase chlorination of 1,1-dichloroethane In the preparation of methylchloroform by vapor phase chlorination of 1,1-dichloroethane, the formation of undesirable chlorohydrocarbon reaction products is suppressed by conducting the vapor phase reaction in the presence of a controlled amount of carbo...	03/11/1980
4093651	Production of perchloromethyl mercaptan A method for improving the yield of perchloromethyl mercaptan by including in the reaction mixture phosphonates or phosphonites, in amounts effective to suppress the formation of undesirable byproducts, such as carbon tetrachloride and sulfur monochloride...	06/06/1978
4092357	Production of perchloromethyl mercaptan A method for improving the yield of perchloromethyl mercaptan by including in the reaction mixture amounts of difunctional carbonyl compounds effective to suppress the formation of undesirable byproducts, such as carbon tetrachloride and sulfur monochlori...	05/30/1978
3948741	Liquid phase chlorination of normal paraffins Selective chemical processing of normal paraffin hydrocarbons may be carried out with increased selectivity by reacting a normal paraffin hydrocarbon reactant, in the presence of inert solvents, in a free radical (e.g., photochemically) initiated reaction...	04/06/1976

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Class 570/253 - Catalyst or reacton directing agent utilized