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| Number | Title | Issue Date |
| 7314844 | Process for the cyanation aldehydes A process for cyanating an aldehyde is provided. The process comprises reacting the aldehyde with: i) a cyanide source which does not comprise a Si—CN bond or a C—(C═O)—CN moiety; and ii) a substrate susceptible to nucleophilic atta... | 01/01/2008 |
| 7262316 | Process for producing aromatic nitrile compound A novel process for industrially producing an aromatic nitrile compound represented by the following general formula (3): characterized in that one of an aromatic hydroxymethyl compound, an aromatic alkoxymethyl ... | 08/28/2007 |
| 7102025 | Method for producing alkyl and/or cycloalkyl-substituted cyclic nitrile In the production method of the invention, a cyclic aldehyde having an alkyl group and/or a cycloalkyl group directly bonded to a skeletal ring and a formyl group directly bonded to the skeletal ring is brought into contact with ammonia and oxygen in vapor phase in ... | 09/05/2006 |
| 7098357 | Method for dehydrating organic compounds in a microreactor The present invention relates to a process for the dehydration of organic compounds to give unsaturated compounds. ... | 08/29/2006 |
| 7014796 | Nonlinear optical compounds and methods for their preparation Nonlinear optically active compounds, methods for making nonlinear optically active compounds, compounds useful for making nonlinear optically active compounds, methods for making compounds useful for making nonlinear optically active compounds, macrostructures that... | 03/21/2006 |
| 6897332 | Process for the cyanation of aldehydes A process for cyanating an aldehyde is provided. The process comprises reacting the aldehyde with: i) a cyanide source which does not comprise a Si—CN bond or a C—(C═O)—CN moiety; and ii) a substrate susceptible to nucleophilic atta... | 05/24/2005 |
| 6875883 | Synthesis of benzonitriles from substituted benzaldehyde There is a significant demand for organic nitriles, based on their versatility in reactions. Compounds prepared from nitriles have properties including superoxide inhibition, ferrielectric liquid crystal dopant, antipicornaviral agents, anti-inflammatory agents, ant... | 04/05/2005 |
| 6852873 | Preparation of styryl dyes Process for preparing compounds of the formula (I) where R1, R2 and R3 are independently hydrogen, alkyl or cycloalkyl, characterized in that an aldehyde of the formula (II... | 02/08/2005 |
| 6828455 | Preparation of styryl compounds Process for preparing compounds of the formula (I) characterized in that an acrylic compound of the formula is reacted with an amine of the formula | 12/07/2004 |
| 6822110 | CaO-catalyzed preparation of isophoronenitrile The present invention describes a process for preparing isophoronenitrile by adding HCN to isophorone. The catalyst used is CaO which has a BET surface area of >1.5 m2/g. The use of such a catalyst achieves high yields and selectivities. ... | 11/23/2004 |
| 6667020 | Ammoxidation of a mixture of ketones to acetonitrile and HCN A process increasing the yield of both HCN and acetonitrile produced during the manufacture of acrylonitrile comprising introducing a hydrocarbon selected from the group consisting of propylene and propane, a crude ketone and/or a mixture of at least two ... | 12/23/2003 |
| 6504043 | Color-stable solution of dimethylaminoacetonitrile in water and process for preparing it The present invention relates to a process for preparing a colour-stable, aqueous dimethylaminoacetonitrile solution from a formaldehyde source, dimethylamine and hydrocyanic acid, wherein the reaction mixture contains 2,4-diamino-6-phenyl-1,3,5-triazine(... | 01/07/2003 |
| 6448416 | Electron acceptors for polymeric thin film waveguide media The present invention is directed to dicyanomethylenedihydrofuran-based electron acceptors which can be used in the preparation of polymeric thin films for waveguide media, and methods of making the same.... | 09/10/2002 |
| 6413485 | Ammoxidation of a mixture of ketones to acetonitrile and HCN A process increasing the yield of both HCN and acetonitrile produced during the manufacture of acrylonitrile comprising introducing a hydrocarbon selected from the group consisting of propylene and propane, a crude ketone and/or a mixture of at least two ... | 07/02/2002 |
| 6248918 | Optically active binaphthyl compound and method for producing an optically active cyanohydrin compound employing the binaphthyl compound An optically active binaphthyl compound of the formula (1): ##STR1## wherein R1 is a C1-6 alkyl group, an aryl group or an aryl C1-6 alkyl group, X is an oxygen atom or a sulfur atom, R2 is a hydrogen atom, a C | 06/19/2001 |
| 6204406 | Catalyst for asymmetric induction (S)-cyanohydrins are produced by asymmetric addition of hydrogen cyanide to aldehydes in the presence of a catalyst of cyclo-[(S)-leucyl-(S)-histidyl].... | 03/20/2001 |
| 6191306 | Process for the preparation of cyclopropylglycine Disclosed is a process for the preparation of cyclopropylglycine by a 5-step process wherein cyclopropanecarboxaldehyde is reacted with an -aminoalkylaromatic compound to obtain an imine which is reacted with a cyanide to produce an aminonitrile co... | 02/20/2001 |
| 6114565 | Process for obtaining nitriles A process for obtaining a nitrile represented by formula RCN, comprising contacting a corresponding aldehyde represented by formula RCHO with (i) ammonia or ammonium hydroxide, and (ii) hydrogen peroxide, in the presence of a transition metal or a transit... | 09/05/2000 |
| 6103929 | Process for the preparation of cyclopropylglycine Disclosed is a process for the preparation of cyclopropylglycine by a 5-step process wherein cyclopropanecarboxaldehyde is reacted with an -aminoalkylaromatic compound to obtain an imine which is reacted with a cyanide to produce an aminonitrile co... | 08/15/2000 |
| 6090982 | Process for the preparation of cyclopropylglycine Disclosed is a process for the preparation of cyclopropylglycine by a 5-step process wherein cyclopropanecarboxaldehyde is reacted with an -aminoalkylaromatic compound to obtain an imine which is reacted with a cyanide to produce an aminonitrile co... | 07/18/2000 |
| 6040471 | Method for preparing certain acetonitriles This invention relates to a process for making certain acetonitriles.... | 03/21/2000 |
| 5972833 | Preparation of vanadium antimonate based catalysts using SnO2 .multidot.xH2 O A method of preparing a catalyst having the elements and the proportions indicated by the following empirical formula: VSbm Aa Dd Ox where A is one or more Ti, Sn, where Sn is always present D is one or more Li, Mg, Ca, S... | 10/26/1999 |
| 5961945 | Method of producing cyano compounds by ammoxidation An ammoxidizable compound is reacted with an ammonium salt, especially an inorganic ammonium salt, in the presence of a source of oxygen and an ammoxidation catalyst at 100 to 700° C., preferably 200 to 700° C., in order to produce cyano compounds of th... | 10/05/1999 |
| 5914424 | Process for producing acrylonitrile In a process for producing acrylonitrile by the ammoxidation of propylene, comprising bringing, in a fluidized-bed reactor, a gas containing propylene, ammonia and molecular oxygen into contact with a highly-active ammoxidation catalyst (this catalyst bei... | 06/22/1999 |
| 5854172 | Preparation of vanadium antimonate based catalysts using SnO2 .multidot.xH2 O A method of preparing a catalyst having the elements and the proportions indicated by the following empirical formula: VSbm Aa Dd Ox where A is one or more Ti, Sn, where Sn is always present D is one or more Li, Mg, Ca, S... | 12/29/1998 |
| 5847190 | Dendritic nitrogen-containing organic compounds containing planar-chiral or axial-chiral end groups and the preparation and use thereof The present invention relates to dendritic, nitrogen-containing organic compounds containing at least 4 planar-chiral or axial-chiral groups, where these planar-chiral or axial-chiral groups are linked as Schiff's bases to the primary amino groups of comp... | 12/08/1998 |
| 5837878 | Boronic compound complexing reagents and highly stable complexes Boron compound complexing reagents, boron compound complexes, and methods of synthesizing these reagents and complexes are disclosed. These reagents and complexes include those shown in General Formula CIII, General Formula CIV, and General Formula CVI. I... | 11/17/1998 |
| 5756802 | Ammoxidation process for producing acetonitrile Acetonitrile is produced directly from alkanes or alkenes by ammoxidation over a catalyst which is a silica-alumina exchanged with a metal of Period 4, Groups VIIA and VIII of the Periodic Table. The silica-alumina can be amorphous but is preferably cryst... | 05/26/1998 |
| 5756803 | Process for the condensation of an aldehyde with hydrogen cyanide A process for the condensation of an aldehyde with hydrogen cyanide in the presence of a buffer is disclosed. The buffer advantageously allows the condensation reaction to occur at a pH equal to or above 4.0 and in the absence of amines.... | 05/26/1998 |
| 5744627 | Boronic compound complexing reagents and complexes Boron compound complexing reagents, boron compound complexes, and methods of synthesizing these reagents and complexes are disclosed. These reagents and complexes include those shown in General Formula III, General Formula IV, and General Formula VI. In o... | 04/28/1998 |
| 5703264 | Process for producing aliphatic nitrile The process for producing an aliphatic nitrile comprising reacting an aliphatic alcohol having 6 to 40 carbon atoms with ammonia (a) in the presence of a copper/transition metal element in the fourth period other than Cr/platinum group element in the eigh... | 12/30/1997 |
| 5656619 | Diphenylheteroalkyl derivatives, the preparation thereof and drugs and cosmetics prepared therefrom Abstract of the Disclosure: Diphenylheteroalkyl derivatives of the formula I ##STR1## where A and R1 -R6 have the meanings specified in the description, and the preparation thereof are described. The substances are suitable for ... | 08/12/1997 |
| 5637750 | Method for the preparation of 2 hydroxybenzonitrile A method for the preparation of a 2-hydroxybenzonitrile which comprises reacting hydroxylamine with a 2-hydroxyarylaldehyde which is at least partially in the form of a salt and/or complex of a metal of Group II, Group III, Group IVA or Group VIA of the P... | 06/10/1997 |
| 5618965 | Process for preparing aromatic nitriles Process for preparing a nitrile of the formula (I) ##STR1## in which R1, R2 and R3 are for example hydrogen, halogen, cyano, hydroxyl, carboxyl, alkyl, alkoxy, alkylthio, alkylamino, dialkylamino, aryl, aryloxy, arylt... | 04/08/1997 |
| 5583081 | Copper-containing zeolite catalysts A catalyst useful in the conversion of nitrogen oxides or in the synthesis of nitriles or imines from amines, formed by preparing an intimate mechanical mixture of a copper (II)-containing species, such as CuO or CuCl2, or elemental copper, wit... | 12/10/1996 |
| 5290357 | Acetone/formaldehyde/cyanide resins A composition for and method of dispersing particles of hydraulic cement in a slurry of hydraulic cement in water, wherein the composition is the reaction product of a ketone, an aldehyde, a cyanide and, optionally, a sulfite. The dispersant properties of... | 03/01/1994 |
| 5239084 | Substituted aminoalkyl biphenyl compounds Antimycotically-active compounds of the formula ##STR1## wherein R1 and R2 each independently are hydrogen, C1-7 -alkyl or C2-7 -alkenyl or together are a straight chain C2-4 -alkylene; R3 | 08/24/1993 |
| 5128479 | Oxidized diphenylheteroalkanes Oxidized diphenylheteroalkanes of the formula I ##STR1## where R1 to R6 and A have the meanings specified in the description, and the preparation thereof are described. The substances are suitable for controlling diseases and as... | 07/07/1992 |
| 5059709 | Process for the synthesis of -[(dialkylamino)substituted-methylene]-ଲ-oxo-(substituted)pr opanentriles A novel process for producing -[(dialkylamino) substituted-methylene]ଲ-oxo-(substituted) propanenitriles of the formula: ##STR1## where R, R1 and R 2 are defined in the specification by reacting a substituted i... | 10/22/1991 |
| 5024691 | Substituted phenoxy benzamide herbicides and methods of use As new compounds, substituted aryloxyphenoxy benzamides having the formula ##STR1## in which X is CH or nitrogen; Y is chlorine, bromine, fluorine, iodine, methyl, cyano or hydrogen; Z is hydrogen, chlorine, bromine, fluorine, iodine, CHn,... | 06/18/1991 |
