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| Number | Title | Issue Date |
| 7705185 | Alkylated and polymeric macromolecular antioxidants and methods of making and using the same Alkylated antioxidant macromolecules are represented by Structural Formula 1: wherein the variables are described herein. Also included are methods of making the molecules and methods of using the molecules as antioxidants.... | 04/27/2010 |
| 7456320 | Process for the synthesis of substituted alpha-aminoindan derivatives A process for the preparation of optically active substituted alpha-amino-indane derivatives of formula (I), which include: an asymmetric hydrogenation reaction of an en-amide derivative of formula (III) in presence of hydrogen and an optically active catalyst, in o... | 11/25/2008 |
| 7329780 | Method of preparing optically pure phenethylamine derivatives Provided is a method of preparing an optically pure compound having formula 1 or its salts. The method includes: reacting (R)-2-(4-methoxy-3-aminosulfonyl-phenyl)-1 -methylethylamine or its salts with a compound selected from the group consisting of chloroacetic aci... | 02/12/2008 |
| 7205440 | Method of producing amines The invention relates to a special two-step method for producing amines on the basis of amides by reacting them with halides or hypohalites in an aqueous solution in a Hofmann degradation reaction. The amide is reacted in an alkaline solution and/or suspension with ... | 04/17/2007 |
| 7154005 | Synthesis of alpha fluoroalkyl amines This invention describes the reaction of an alpha fluoroalkyl ketone with a bis(trialkylsilyl)amide to give a stable N-trialkylsilyl imine. Treatment of the N-trialkylsilyl imine with an alcohol leads to solvolysis of the trialkylsilyl group and yields a stable mixt... | 12/26/2006 |
| 7015176 | Process for the synthesis of aryl sulfurpentafluorides A process is described for the synthesis of an aryl sulfur pentafluoride compound. In one embodiment of the present invention, there is provided a process for preparing an aryl sulfurpentafluoride compound comprising: combining an at least one aryl sulfur compound w... | 03/21/2006 |
| 6946577 | Process for the production of aminodiphenylamines The present invention relates to a process for the production of aminodiphenyl-amines, such as 4-aminodiphenylamine (4-ADPA), by reacting nitrohalogenated benzenes with anilines in the presence of a base as well as a copper-phosphorus complex, followed by hydrogenat... | 09/20/2005 |
| 6933410 | Process for preparing 5,6-diethyl-2,3-dihydro-1H-inden-2-amine A process for preparing 5,6-diethyl-2,3-dihydro-1H-inden-2-amine and acid addition salts thereof from 2-aminoindan. The process comprises protecting the amino group of 2-aminoindan, acetylating the ring in the protected compound, reducing the acetyl group to ethyl t... | 08/23/2005 |
| 6835831 | Diastereoselective synthesis of UDP-glucose: N-acylsphingosine glucosyltransferase inhibitors Disclosed is a method of preparing a composition comprising a compound represented Structural Formula (I): The method comprises the step of reacting an aldehyde compound R10CHO with an isonitrile compound re... | 12/28/2004 |
| 6710209 | Heteroaryl-substituted quinolin-2-one derivatives useful as anticancer agents The present invention relates to a method of preparation for compounds of Formula 23: wherein R3, R4, R5, R6, R7, and W are as defined herein. ... | 03/23/2004 |
| 6683216 | Continuous process for the preparation of amines Disclosed is a process for the preparation of amines by continuously feeding a carboxamide, aqueous alkaline hypohalite, and aqueous alkaline hydroxide to a first reaction zone to form a N-halocarboxamide, measuring the concentration of at least one react... | 01/27/2004 |
| 6673960 | Work-up of distillation residues from the synthesis of toluene diisocyanate A process for working up distillation residues from the synthesis of tolylene diisocyanate by reaction of the distillation residues with water comprises reacting the TDI distillation residues with water in a continuous or semicontinuous process in a backm... | 01/06/2004 |
| 6660773 | Processes for preparing 6-hydroxy-3,4-dihydroquinolinone, cilostazol and N-(4-methoxyphenyl)3-chloropropionamide A process for preparing 6-hydroxy-3,4-dihydroquinolinone by intramolecular Friedel-Crafts alkylation of N-(4-methoxyphenyl)-3-chloropropionamide in which an equivalent of N-(4-methoxyphenyl)-3-chloropropionamide is contacted with a Lewis acid in DMSO or a... | 12/09/2003 |
| 6635783 | Bicyclic 1,3-aminoalcohols, d8-metal complexes and hydrogenation processes Bicyclic amino alcohols, whose amino group and hydroxy group are bonded in positions 1,3 adjacent to the bridge, for example ##STR1## are valuable ligands for metal complexes of the d-8 metals of the periodic table of elements. The metal complexes in ques... | 10/21/2003 |
| 6552222 | Hydrolysis of acylamino acids A process for the preparation of racemic amino acids, characterized in that an acylamino acid of the formula R1 --CH(NH--CO--R2)COOH wherein R1 is hydrogen, a linear, branched or cyclic alkyl that has from 1 to 7 carbon atoms a... | 04/22/2003 |
| 6552229 | Method for preparing 4-nitroso-substituted aromatic amine Disclosed is a method for preparing a 4-nitroso-substituted aromatic amine that includes contacting an amide compound with a nitroaromatic compound in the presence of a base and a solvent to directly prepare 4-nitroso-substituted aromatic amine as a main ... | 04/22/2003 |
| 6479661 | Method for symmetrically and asymmetrically disubstituting carboxylic acid amides with organotitanates and grignard reagents The invention relates to a method for disubstituting carboxylic acid amides on a geminal carbonyl-C-atom using a Grignard reagent in the presence of an organotitanate.... | 11/12/2002 |
| 6462230 | Method of and apparatus for decomposing wastes A method of decomposing wastes containing target compounds having one or more of hydrolyzable bonds of ether bond, ester bond, amide bond and isocyanate bond wherein the method comprises continuously supplying the wastes in a molten state or liquid state ... | 10/08/2002 |
| 6448445 | Method for catalytically disubstituting carboxylic acid amides with at least one grignard reagent The invention relates to a method for disubstituting carboxylic acid amides on the geminal carbonyl-C-atom using at least one grignard reagent in the presence of a metal alcoholate compound used as a catalyst and in the presence of another organometallic ... | 09/10/2002 |
| 6429336 | Process for recovering toluene diamine from toluene diisocyanate distillation residues Residues from the distillation of a toluene diamine phosgenation mixture are hydrolyzed by mixing them with water and subjecting the mixture to a temperature of 200-350 ° C. The hydrolysis is performed in the presence of a sufficient amount of a base to ... | 08/06/2002 |
| 6262308 | Process for the preparation of racemic sertraline The invention relates to a process for preparing cis-N-methyl-4-(3,4-dichlorophenyl)-1,2,3,4-tetrahydro-1-naphthylamine, or racemic sertraline, corresponding to formula (I) ##STR1## in salt form, starting with 4-(3,4-dichlorophenyl)tetralone of formula (I... | 07/17/2001 |
| 6255529 | Method of and apparatus for decomposing wastes A method of decomposing wastes containing target compounds having one or more of hydrolyzable bonds of ether bond, ester bond, amide bond and isocyanate bond wherein the method comprises continuously supplying the wastes in a molten state or liquid state ... | 07/03/2001 |
| 6245943 | Method of preparing p-phenylenediamine A disclosed method of preparing p-phenylenediamine includes the steps of: reacting urea and nitrobenzene with a base in the presence of a polar solvent to yield 4-nitrosoaniline and 4-nitroaniline; and subsequently, diluting the resulting mixed solution i... | 06/12/2001 |
| 6198001 | Manufacturing method for 4-nitrosoaniline from urea and nitrobenzene A method for preparing 4-nitrosoaniline, including reacting urea and nitrobenzene in a polar organic solvent in the presence of a base at a temperature of room temperature to 150° C. The method uses a relatively cheap urea and nitrobenzene as the raw mat... | 03/06/2001 |
| 6156932 | Preparation of 4,4'-dinitrodiphenylamine from urea and nitrobenzene A method for preparing 4,4'-dinitrodiphenylamine, including reacting urea and nitrobenzene in a polar organic solvent in the presence of a base at a temperature of room temperature to 100° C. The method employs a relatively cheap urea and nitrobenzene as... | 12/05/2000 |
| 5965735 | Process for preparing flunixin and intermediates thereof Process for preparing a key intermediate, 2-methyl-3-trifluoromethylaniline (MTA) of Flunixin, as well as novel intermediates thereof are described.... | 10/12/1999 |
| 5929265 | Binuclear iridium(I) phosphine complexes and their use as catalyst in the asymmetric hydroamination of olefins Binuclear iridium (I) phosphine complexes of the general formula: ##STR1## in which X is fluorine, chlorine, bromine or iodine, and ##STR2## is in each case a chiral bidentate diphosphine ligand. The complexes are particularly suitable as cataly... | 07/27/1999 |
| 5906998 | Method for decomposing polymer containing urethane linkage and/or urealinkage In the decomposition of a polymer containing a urethane linkage and/or urea linkage in the presence of a decomposing agent, the amount of evolved carbon dioxide is measured and the decomposition reaction is conducted until a total amount of evolved carbon... | 05/25/1999 |
| 5892118 | Process for producing 4,6-diaminoresorcinols A process for producing 4,6-diaminoresorcinols comprises the steps of: subjecting a dioxime of the formula (4) ##STR1## wherein R is an alkyl or phenyl group, to Beckmann rearrangement to thereby produce 4,6-diacylaminoresorcinol of the formula (5) #... | 04/06/1999 |
| 5728873 | Process for the preparation of cyclopropanamine A process for the preparation of cyclopropanamine by Hofmann degradation of cyclopropanecarboxamide, comprising the following steps: (1) suspending cyclopropanecarboxamide, either (A) in 1.1 to 4 mol of sodium hydroxide, in solution whose concentration is 10 t... | 03/17/1998 |
| 5672754 | Process for the preparation of aminodiphenylamine compounds The invention relates to a process for the preparation of compounds of formula ##STR1## wherein R1 is hydrogen, C1 -C4 alkyl or sulfo, and R2 is hydrogen or C1 -C4 alkyl, which process... | 09/30/1997 |
| 5659084 | Processes and intermediates for the preparation of 2-substituted benzaldehydes Processes for preparing 2-substituted benzaldehydes of general formula (I), wherein: R1 is CH2 CH2 --(L1)p --(CH2)q --(L2)r --CH2 --(T)2 --... | 08/19/1997 |
| 5659075 | Chemical process for preparing an optically active aminodiol A process is claimed for preparing [1S(1(, 2ଲ, 4ଲ)]-4-amino-2-hydroxymethyl -1-cyclopentanol from cis-4-((R)-benzoylamino)-2-cyclopentenecarboxylic acid, methyl ester in five steps. The invention also describes a number of novel interme... | 08/19/1997 |
| 5633407 | Process for preparing substituted aromatic amines A process for preparing substituted aromatic azo compounds is provided which comprises contacting a nucleophilic compound and an azo containing compound in the presence of a suitable solvent system, and reacting the nucleophilic compound and the azo conta... | 05/27/1997 |
| 5618979 | Process for preparing substituted aromatic amines A process for preparing substituted aromatic amines which comprises contacting a nucleophilic compound and a substituted aromatic azo compound in the presence of a suitable solvent system, and reacting the nucleophilic compound and the substituted aromati... | 04/08/1997 |
| 5597940 | Process for producing ଲ-nitroenamine Disclosed is a process for producing ଲ-nitroenamine represented by the formula I: ##STR1## wherein R1 and R2 are the same or different and independently indicate a hydrogen atom or a C1 -C10 alkyl gro... | 01/28/1997 |
| 5521317 | Processes for the preparation of pesticides and intermediates There is disclosed a process for the preparation of an indanylamine compound of general formula ##STR1## wherein R1 represents an optionally substituted alkyl group, and R2, R3 and R4 independently represen... | 05/28/1996 |
| 5516943 | Process for preparing cyclic CIS-1-amino-2-alkanols A two-step process for the conversion of a trans-1-amino-2-hydroxycycloalkane stereoselectively to a cis-1-amino-2-hydroxycycloalkane is disclosed. The novel step, a one-step hydrolysis with formal inversion, can be used to convert an amide of a tran... | 05/14/1996 |
| 5484931 | Process for preparing Flunixin and intermediates thereof Process for preparing a key intermediate, 2-methyl-3-trifluoromethylaniline (MTA) of Flunixin, as well as novel intermediates thereof are described.... | 01/16/1996 |
| 5475140 | Process for producing N,N-disubstituted p-phenylenediamine derivative sulfate 4-Amino-3-methyl-N-ethyl-N-(ଲ-hydroxyethyl)-aniline sulfate which is used particularly as a developer for color photography can be easily produced in high yield and high quality by nitrosating N-ethyl-N-(ଲ-hydroxyethyl)-m-toluidine by use of a... | 12/12/1995 |
