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| Number | Title | Issue Date |
| 7268247 | Process for the preparation of phenylmalonic acid dinitriles Phenylmalonic acid dinitriles are prepared by reaction of, for example, phenyl Kalides with malonic acid dinitrile in the presence of palladium catalysts and bases. ... | 09/11/2007 |
| 7238832 | Production method of a coupling compound There is provided a method for producing a coupling compound of formula (1): (Y—)(n−1)R1—R2—(R1)(n′−1) (1) wherein R1, R2 n and n′ are as defined belo... | 07/03/2007 |
| 7041856 | Coupling catalyst and process using the same There are disclosed a process for producing a coupling compound of formula (1): (Y—)(n−1)R1—R2—(R1)(n′−1), (1) wherein R1 and R2 | 05/09/2006 |
| 7005534 | Method for producing hydrolysis-stable ammonium nitriles The invention relates to a method for producing hydrolysis-stable ammonium nitriles by reacting a compound of formula (1), wherein R1, R2, and R3 are identical or different and represent linear or branched C1–C24 | 02/28/2006 |
| 6790975 | Aminostyrylanthracene compound, synthetic intermediate thereof, and process for the production thereof This invention is an aminostyrylanthracene compound represented by, for example, the following general formula [I]. This compound is produced by condensation from a corresponding aminobenzaldehyde and a phosphonic ester or phosphonium salt. ... | 09/14/2004 |
| 6506926 | Process for the preparation of 2-alkythiobenzonitrile derivatives A process for preparing a compound of the formula: ##STR1## which comprises reacting a compound of the formula: ##STR2## wherein R3 is nitro or halo, with a compound of formula R1 S--X wherein X is hydrogen or alkali metal.... | 01/14/2003 |
| 6433214 | Process for the preparation of 2-(4-methylphenyl)-benzoic acid derivatives A process for the preparation of 2-(4-methylphenyl)benzoic acid C1-6 alkyl esters by reaction of a sulfonic derivative of formula ##STR1## wherein R is C1-6 alkyl and R1 is optionally perfluorinated C1-6 alkyl o... | 08/13/2002 |
| 6433209 | Alpha-substitution of unprotected ଲ-amino ester compounds Methods for stereoselective substitution in which a (mono or un)--substituted unprotected ଲ-amino ester compound or salt thereof is reacted with an aliphatic electrophile in the presence of a base selected from alkyl lithium compounds, lithiu... | 08/13/2002 |
| 6407253 | Method for preparing 4-methyl-biphenyl derivatives The subject-matter of the invention is a process for the preparation of substituted 4-methylbiphenyls of general formula: ##STR1## in which R is a cyano group or a protected tetrazolyl group of formula: ##STR2## in which R1, situated at the 1 o... | 06/18/2002 |
| 6392111 | Method for producing olefins Olefins containing aromatic substituents are synthesized without the addition of phosphonium salts or phosphanes with the aid of a PdII compound as a catalyst in the presence of nitrogen-containing additives such as N,N-dimethylglycine and a ba... | 05/21/2002 |
| 6392080 | Process for the preparation of a cyanobiphenyl The subject-matter of the invention is a process for the preparation of o-(p-tolyl)benzonitrile, characterized in that an o-halobenzonitrile is treated with a p-tolylmagnesium halide in the presence of a manganous salt and of a cocatalyst comprising a tra... | 05/21/2002 |
| 6291730 | Process for the manufacture of halocarbons and selected compounds and azeotropes with HF A liquid phase process is disclosed for producing halogenated alkane adducts of the formula: CAR1 R2 CBR3 R4 (where A, B, R1, R2, R3, and R4 are as defined in the spec... | 09/18/2001 |
| 6218564 | Process for the preparation of substituted aromatic compounds A process for the preparation of a substituted aromatic compound in which a chloroaromatic compound and an alkyl-, alkenyl- or aryl-boronic acid ester or anhydride are coupled in the presence of palladium and a lipophilic aliphatic phosphine comprising at... | 04/17/2001 |
| 5922898 | Process for preparing biaryl compounds The present invention provides a process for preparing biaryl compounds comprising reacting an arylmetal reagent selected from arylmagnesium reagents and aryllithium reagents with an arylhalide in the presence of a catalyst system comprising a catalyst se... | 07/13/1999 |
| 5892094 | Process for preparing 4'-methyl-2-cyanobiphenyl Process for preparing 4'-methyl-2-cyanobiphenyl, comprising, catalytically hydrogenating at least one brominated cyanobiphenyl compound selected from 4'-dibromomethyl-2-cyanobiphenyl and 4'-bromomethyl-2-cyanobiphenyl; and process for regenerating 4'-meth... | 04/06/1999 |
| 5856557 | Process for producing hexafluorobiphenyl -3,3',4,4'-Tetracarboxylic acid precursors A 2,2',5,5',6,6'-hexafluorobiphenyl-3,3',4,4'-tetracarboxylic acid precursor as an intermediate material for a highly functional fluororesin may be produced at a high yield by reacting tetrafluorophthalonitrile with an alkali metal iodide.... | 01/05/1999 |
| 5763639 | Process for producing quarternary glycine nitriles A process for preparing quaternized glycine nitriles of formula I ##STR1## comprising reaction of the corresponding precursor amine, aldehyde, hydrocyanic acid or alkali metal cyanide, and subsequent quaternization with an alkylating agent, wherein t... | 06/09/1998 |
| 5739375 | Methylation of organic compounds Methyl compounds are prepared from carbon acids by reaction with dimethyl carbonate in the presence of a nitrogen-containing base.... | 04/14/1998 |
| 5449808 | Method for converting amides to nitriles and nitriles to amides A process which comprises contacting and catalytically reacting under essentially anhydrous conditions in the liquid phase an amide with a nitrile according to the equation: RCONH2 +R1 CN.revreaction.RCN+R1 CONH2 whe... | 09/12/1995 |
| 5288912 | Process for the preparation of lithium diarylphosphides and alkylated derivatives thereof 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 ... | 02/22/1994 |
| 5288895 | Process for the preparation of a biphenyl derivative The subject of the invention is a process for the preparation of 4-methyl-2'-cyanobiphenyl of formula: ##STR1## wherein a benzonitrile halide of general formula: ##STR2## in which Hal represents a halogen atom, is reacted, in the presence of a ... | 02/22/1994 |
| 5179222 | Process for preparing phenyl butyronitriles and perfumery use of 2,2-dimethyl-4-phenyl valeronitrile Described is the use in imparting, augmenting or enhancing aromas to or in perfume compositions, colognes and perfumed articles by admixing therewith an aroma imparting, augmenting or enhancing quantity of 2,2-dimethyl-4-phenyl valeronitrile defined accor... | 01/12/1993 |
| 5099054 | Organoclay triphase catalysts In a method of carrying out organic conversions via heterogeneous phase transfer catalysis by contacting immiscible liquid phases containing respective substances capable of interacting, with a solid catalyst to promote the transfer of reactive species fr... | 03/24/1992 |
| 5089651 | Process for producing 3-iminonitriles A process for producing a 3-iminonitrile represented by the following general formula (I): ##STR1## wherein M represents an alkali metal, which comprises reacting acetonitrile with an alkali metal hydride in an amount of from 0.01 to 0.5 molar e... | 02/18/1992 |
| 4942221 | Process for obtaining -amino nitriles and their applications to organic synthesis The present invention relates to the synthesis of nitriles having an amine function on the adjacent carbon.... | 07/17/1990 |
| 4933470 | Method of synthesis of vicinal diamines A method is described for producing vicinal diamines comprising the steps of converting a compound, possessing a leaving group on a carbon atom interposed between carbon atoms containing amino groups, to an aziridine-containing compound and reacting the l... | 06/12/1990 |
| 4910326 | ଲ-ketonitrils A fluorinated ଲ-ketonitrile of the formula: ##STR1## in which: R is alkyl having plural fluorines and R1 is hydrogen or alkyl.... | 03/20/1990 |
| 4894471 | Continuous process for the alkylation of CH-acid compounds with alkyl carbonates in gas-liquid phase transfer catalysis-conditions A continuous process for the alkylation of CH-acid compounds with dialkyl carbonates in gas-liquid phase transfer catalysis conditions is described, consisting of contacting a mixture of a CH-acid compound (arylacetonitrile or malonic diester) and of a di... | 01/16/1990 |
| 4889951 | Perfluoroalkylation process Perfluoroalkylaromatic compounds containing at least two carbons in the perfluoroalkyl group are prepared by reacting an aromatic bromide or iodide with a potassium perfluoroalkanoate corresponding to the formula KOOC(CF2)n CF3 | 12/26/1989 |
| 4847401 | Continuous large-scale production of ethyl 2,2-difluoro-4-pentenoate and 2-fluorinated methyl aminoacetonitriles by use of a flow reactor The large scale preparation of ethyl 2,2-difluoro-4- pentenoate and 2-fluorinated methyl aminoacetonitriles by reaction of 2-H-perfluoroethyl allyl ether and n-butyl lithium and fluoromethylacetonitrile and a Grignard reagent, respectively, is largly unsu... | 07/11/1989 |
| 4822904 | Perfluoroalkylation process Perfluoroalkylaromatic compounds containing at least two carbons in the perfluoroalkyl group are prepared by reacting an aromatic bromide or iodide with a potassium perfluoroalkanoate corresponding to the formula KOOC(CF2)n CF3 | 04/18/1989 |
| 4814482 | Trifluoromethylation process Trifluoromethylaromatic compounds are prepared by reacting the corresponding aromatic bromide or iodide with potassium trifluoroacetate in the presence of cuprous iodide, a phase transfer agent, and a dipolar aprotic solvent.... | 03/21/1989 |
| 4814480 | Trifluoromethylation process Trifluoromethylaromatic compounds are prepared by reacting the corresponding aromatic bromide or iodide with a tetraalkylammonium trifluoroacetate in the presence of cuprous iodide and a dipolar aprotic solvent.... | 03/21/1989 |
| 4808748 | Trifluoromethylation process Trifluoromethylaromatic compounds are prepared by reacting the corresponding aromatic bromide or iodide with potassium trifluoroacetate in the presence of cuprous iodide and a dipolar aprotic solvent.... | 02/28/1989 |
| 4722808 | Use of cyclododecenylacetonitrile as a fragrance component Cyclododecenylacetonitrile is prepared by reacting cyclododecanone with cyanoacetic acid in the presence of a catalyst. Purified cyclododecenylacetonitrile has a pleasant scent reminiscent of roses and lilies of the valley, containing additionally a musk ... | 02/02/1988 |
| 4716237 | Process for the production of 3-oxonitriles 3-oxonitriles are produced by reaction of carboxylic acid esters with carboxylic acid nitriles in the presence of 70 to 80% suspension of sodium hydride in white oil. The oxonitrile are intermediate products for the production of 3-oxocarboxylic acid amid... | 12/29/1987 |
| 4670577 | Novel process A novel process for the preparation of pent-4-enoic acids of the formula ##STR1## wherein X is selected from the group consisting of hydrogen, cyano and alkoxycarbonyl of 2 to 5 carbon atoms and Y is selected from the group consisting of hydrogen, cy... | 06/02/1987 |
| 4667050 | Preparation of pyrethroid precursors Substituted vinylcyclopropane carboxylates, useful precursors to pyrethroid insecticides, are prepared by noble metal catalyzed addition of 1-methyl-3-buten-2-yl or 4-methyl-3-penten-1-yl carbonates or carboxylic acid esters to malonic acid diesters, alky... | 05/19/1987 |
| 4567005 | Allylation of carbon acids Carbon acids are allylated by contacting with an allyl carbonate in the presence of an iron, cobalt, nickel, ruthenium, rhodium, osmium, iridium or platinum catalyst.... | 01/28/1986 |
| 4540791 | Production of ଲ-amino-,ଲ-unsaturated carboxylic acid esters A process for producing a compound of the formula ##STR1## wherein A is aryl or alkyl, R1 is an aromatic radical and R2 is hydrogen, alkyl, aryl, cyano, --COOalkyl or --COOaryl, which process comprises reacting 1 mol of an aroma... | 09/10/1985 |
