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| Number | Title | Issue Date |
| 7439366 | Phenacylamine derivatives, process for their production and pesticides containing them The present invention relates to a phenacylamine derivative of the formula (I) or a salt thereof: wherein A is alkyl, cycloalkyl, phenyl which may be substituted by Y, pyridyl which may be substituted by Y, or pyrazolyl whi... | 10/21/2008 |
| 7365204 | Process for the production of pyridine and picolines An process for the preparation of pyridine and/or picolines is disclosed. The process comprises contacting a mixture of carbonyl compound with ammonia in the presence of surface-passivated titanium-silicate catalyst in gas phase at a temperature ranging between 300-... | 04/29/2008 |
| 7303592 | Hair coloring compositions for use in oxidative hair dyeing Hair dyeing compositions are provided which comprise at least one coupler selected from N-aryl-m-phenylenediamine derivatives, 2-substituted N-aryl-m-phenylenediamine derivatives, and N-aryl-m-diaminopyridine derivatives, in combination with and at least one diamino... | 12/04/2007 |
| 7282068 | Polycationic azo compounds for dyeing keratin fibers, dye composition containing the same, and methods for making such compounds The present disclosure relates to compounds used as direct dyes, and dyeing compositions comprising such compounds. The disclosed compounds have the formula A-L-B, wherein A and B are chosen from arylazoimidazolium coloring functional groups, and L is a linker compr... | 10/16/2007 |
| 7135487 | Sulphonamide derivatives The present invention relates to novel sulphonamide derivatives, to processes for their preparation and to pharmaceutical compositions containing them. ... | 11/14/2006 |
| 7109214 | Substituted cyclopentene compounds The present invention relates to substituted cyclopentene compounds of the general formula I, to a process for the production thereof, to pharmaceutical preparations containing these compounds and to the use thereof for the production of pharmaceutical preparations.... | 09/19/2006 |
| 6887280 | Hair coloring compositions for use in oxidative hair dyeing Novel compositions for use in oxidative hair coloring compositions are provided. The compositions comprise one or more oxidative hair coloring N-aryl-m-phenyldiamine derivatives as couplers and one or more diaminopyrazole primary intermediates in combination. ... | 05/03/2005 |
| 6596716 | 2-propane-sulphonamide derivatives The present invention relates to the potentiation of glutamate receptor function using certain 2-propane-sulphonamide derivatives. It also relates to novel 2-propane-sulphonamide derivatives, to processes for their preparation and to pharmaceutical compos... | 07/22/2003 |
| 6566527 | Process for preparing 1-(6-methylpyridin-3-yl)-2-[4-methylsulphonyl)-phenyl]ethanone A five-step process for preparing 1-(6-methylpyridin-3-yl)-2-[4-methylsulfonyl)phenyl]ethanone of formula (I): ##STR1## The process involves the following steps: (a) 4-(methylthio)benzyl alcohol is converted into 4-(methylthio)benzyl chloride; (b) 4-... | 05/20/2003 |
| 6559164 | Substituted pyrroles suitable for continuous infusion Disclosed are novel substituted pyrroles having the formula ##STR1## These compounds and their pharmaceutically acceptable salts are suitable for administration to patients as continuous infusion solution and are useful in the treatment and/or control of ... | 05/06/2003 |
| 6541640 | Process for the preparation of 4-haloalkylnicotinonitriles 4-Haloalkylnicotinonitriles having the formula (I) ##STR1## which are suitable as intermediates in the preparation of pesticides, are obtained by: (a) reacting a 3-amino-1-haloalkyl-2-propen-1-one RF --C(O)--CH.dbd.CH--NH2 (II) in a con... | 04/01/2003 |
| 6458433 | Difluorophenyl derivatives, liquid-crystal compounds, and liquid-crystal composition Disclosed are liquid crystalline compounds which (i) are characterized in that the compounds have a wide temperature range in which the compounds exhibit a liquid crystal phase, are low in viscosity, and have a negative and large Ɗ&3xb5;, (ii) are readil... | 10/01/2002 |
| 6399774 | Compounds having activity as inhibitors of cytochrome P450RAI Compounds having Formula 1 wherein the symbols have the meaning defined in the specification are inhibitors of the cytochrome P450RAI (retinoic acid inducible) enzyme, and are used for treating diseases responsive to treatment by retinoids. ##STR1##... | 06/04/2002 |
| 6369069 | Biphenylsulfonyl cyanamides, method for the production thereof and their utilization as a medicament The invention relates to compounds of the formula (I), ##STR1## in which the symbols have the following meaning: R(1) is 1. alkyl having 1, 2, 3, 4, 5, 6, 7 or 8 carbon atoms; 2. alkyl having 1, 2, 3, 4, 5, 6, 7 or 8 carbon atoms, in which one to all hydrogen ... | 04/09/2002 |
| 6251827 | Acylsulfamoylbenzamides, crop protection compositions comprising them, and processes for their preparation Acylsulfamoylbenzamides of the formula I and crop protection compositions comprising them are described. In this formula I, R1, R2, R3, R4 and R5 are various organic radicals and X is CH or N. ##... | 06/26/2001 |
| 6111113 | Process for the preparation of 2,3,5-collidine and 2-ethyl-5-methylpyridine 2,3,5-Collidine and 2-ethyl-5-methylpyridine are prepared in high yields at the same time by reacting methacrolein and methyl ethyl ketone with ammonia in a gas phase in the presence of a catalyst which comprises silica-alumina containing at least one ele... | 08/29/2000 |
| 6057319 | 3,4-Diaryl-2-hydroxy-2,5-dihydrofurans as prodrugs to cox-2 inhibitors The invention encompasses the novel compound of formula (I) useful in the treatment of cyclooxygenase-2 mediated diseases. The invention also encompasses certain pharmaceutical compositions for treatment of cyclooxygenase-2 mediated diseases comprising co... | 05/02/2000 |
| 5994550 | Pyridine/picoline production process A process is provided for producing pyridine and/or alkylpyridine compounds comprising reacting a feedstream of ammonia and at least one C1-5 carbonyl reactant under conversion conditions and in the presence of a phosphorus-modified molecular s... | 11/30/1999 |
| 5969143 | Pyridine/picoline production process There is provided a high efficiency base synthesis process for shape selective production of pyridine and picoline products from ammonia and C1-5 carbonyl compounds. The process includes reacting ammonia and at least one C1-5 carbony... | 10/19/1999 |
| 5952258 | Process for the preparation of pyridine using zeolite catalysts Disclosed is a process for the preparation of pyridine bases by a reaction of an aliphatic aldehyde and/or ketone with ammonia under gaseous phase using a specified catalyst in which a specified metal or combined metals are carried in or onto specified ze... | 09/14/1999 |
| 5932736 | Preparation of heterocycles using 1,3-dihalopropenes Described are preferred processes for preparing heterocycles having one or more nitrogen and/or oxygen heteroatoms, utilizing a 1,3-dihalopropene as an effective 3-carbon fragment. Preferred processes yield pyridines, quinolines, oxazoles, pyrimidines and... | 08/03/1999 |
| 5808081 | Chichibabin aminations of pyridine bases Improved Chichibabin aminations of pyridine bases are described which are conducted under a pressurized gas phase containing ammonia and in the presence of a selected additive which increases the reaction rate, and also in preferred processes favorably al... | 09/15/1998 |
| 5808094 | Preparation of mixed crystals and solid solutions of 1,4-diketopyrrolopyrroles A process for the preparation of mixed crystals of 1,4-diketopyrrolo3,4-c!pyrroles, consisting of 1 mol each of two different compounds of formula ##STR1## by heating a corresponding mixture in solid form to the temperature range from 220° to... | 09/15/1998 |
| 5780635 | Pyridine base synthesis A base synthesis process and catalyst for the preparation of pyridine or its alkylpyridine derivatives involving the catalytic reaction of one or more aldehydes and/or ketones containing from one to about five carbon atoms, with at least one reactant havi... | 07/14/1998 |
| 5756746 | Monophase solid solutions containing asymmetric pyrrolo 4,3-c! pyrroles as hosts The present invention relates to a solid solution consisting of 60-90 mol-% of an asymmetric 2,5-dihydro-1,4-diketopyrrolo3,4-c!pyrrole of the formula (I) ##STR1## in which G1 and G2 independently of one another are different ... | 05/26/1998 |
| 5708176 | Preparation of 3,5-lutidene The present invention is a process for the manufacture of 3,5-lutidine and 3-picoline from 2-methyl-1,5-pentanediamine by vapor phase reaction with hydrogen at about 400°-500° C. over an oxide catalyst.... | 01/13/1998 |
| 5554633 | Substituted amines as tachykinin receptor antagonists Compounds of formula (I), and salts and prodrugs thereof, wherein Q is optionally substituted phenyl or benzhydryl; X and Y are each H or together form a group=O; Z is O, S or NR9, where R9 is H or C1-6 alkyl; R1 | 09/10/1996 |
| 5395940 | Synthesis of pyridine and 3-alkylpyridine An improved process is provided for selectively synthesizing pyridine and 3-alkylpyridine in high yield by reacting ammonia and a carbonyl reactant selected from the group consisting of formaldehyde, an aldehyde containing from 2 to 4 carbon atoms, a keto... | 03/07/1995 |
| 5346647 | Cyclohexane compounds used in liquid crystalline mixtures Compounds of the formula ##STR1## wherein n stands for the number 0 or 1; R1 denotes a group R3 or R3 --A3 --Z2 -- and R2 denotes a group R4 or R4 --A4... | 09/13/1994 |
| 5334721 | 2,4-dimethyl-5-oxohexane and a method of use therefor The invention relates to a process for the preparation of high yields of 5-oxohexane nitriles with minimum formation of 1 undesired isomer. Such nitriles may be utilized as starting materials for the preparation of pharmaceutical and agrochemical intermed... | 08/02/1994 |
| 5237068 | Process for producing pyridine bases The present invention provides a process for producing pyridine bases which comprises reacting an aliphatic aldehyde and/or a ketone with ammonia in the presence of a catalyst in gaseous phase, said catalyst comprising a zeolite containing (a) an element ... | 08/17/1993 |
| 5225560 | Process for the preparation of dialkyl pyridine-2,3-dicarboxylate and derivatives thereof from dialkyl dichlorosuccinate There is provided a process for the preparation of substituted and unsubstituted-2,3-pyridinedicarboxylate compounds by reacting a dialkyl dichlorosuccinate with a dehydrohalogenating agent, an ammonia source and an appropriately substituted , ... | 07/06/1993 |
| 5218122 | Pyridine base synthesis process and catalyst for same An improved base synthesis process and catalyst for the preparation of pyridine or its alkylpyridine derivatives involving the catalytic reaction of one or more aldehydes and/or ketones containing from one to about five carbon atoms, with at least one rea... | 06/08/1993 |
| 5149816 | High temperature process for selective production of 3-methylpyridine A process for the selective production of 3-methylpyridine in high yield comprising the step of contacting a vaporized feed stream containing 2-methyl-1,5-pentanediamine with a metal-oxide catalyst of other than an alkali metal at a temperature of about 5... | 09/22/1992 |
| 5096905 | Basic cleavage products of elaiophylin and elaiophylin derivatives and use thereof The invention relates to elaiophylin derivatives of the formulae (I), (I'), (III) and (III') ##STR1## in which the C.dbd.C double bonds in the 2,3 and 4,5 position may also be hydrogenated and in which R1, R2, R3, R | 03/17/1992 |
| 5081247 | Preparation of pyridines Pyridines of the formula ##STR1## where the individual radicals R1 may be identical or different and are each hydrogen or an aliphatic radical are prepared by reacting a) a 2-alkoxy-2,3-dihydro-4H-pyran of the formula ##STR2## or b) a... | 01/14/1992 |
| 5079367 | Preparation of 3-hydrocarbyl substituted pyridines Substituted pyridines of the formula ##STR1## where R1 is alkyl of 1 to 20 carbon atoms, cycloalkyl, aryl or aralkyl, are prepared by reacting a mixture of acrolein and alkanals of the formula ##STR2## with ammonia in the presenc... | 01/07/1992 |
| 5066809 | Preparation of 3-methylpyridine from 2-methylglutaronitrile Disclosed is a process for making 3-methylpyridine by contacting 2-methylglutaronitrile in admixture with hydrogen gas with a supported solid catalyst containing palladium metal promoted with at least one of Cr, W, Ni, Co and Ge.... | 11/19/1991 |
| 5061805 | Process for preparing 2-methyl-3,5-dialkylpyridines by dealkylation with sulfur A process for dealkylating the 2-position on a trisubstituted pyridine derivative having the formula ##STR1## where R1 is a straight chain alkyl group from about C2 -C5 and where R2 and R3 are al... | 10/29/1991 |
| 5053516 | Synthesis of 2-substituted-5-methylpyridines from methylcyclobutanecarbonitrile, valeronitrile and pentenonitrile intermediates 3-Methyl-2-alkylamino-1-halo-1-cyano cyclobutanes are cleaved under acid conditions to form 2-halo-4-formylvaleronitrile and 4-formyl-2-pentenonitrile which can be cyclized to form 2-substituted-5-methylpyridine derivatives. These pyridine derivatives are... | 10/01/1991 |
