| Patents for C07C 251 - Compounds containing nitrogen atoms doubly- bound to a carbon skeleton (9,928) | 
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| 10/09/1991 | EP0450711A1 Substituted cyclohexanediones and their herbicidal uses  | 
| 10/09/1991 | EP0449917A1 Explosion-proof 1-dimethylamino-3-dimethylimino-2-arylprop-1-ene salts, process for their preparation, and their use  | 
| 10/08/1991 | US5055471 Fungicides  | 
| 10/08/1991 | US5055414 Phenalenimine fluorescent dyes and their use in analytical methods  | 
| 10/08/1991 | CA1290326C Acrylic acid amides  | 
| 10/02/1991 | DE4010355A1 Bicyclo(3.3.0)octan-derivate, verfahren zu ihrer herstellung und ihre pharmazeutische verwendung Bicyclo (3.3.0) octane derivatives, process for their production and their pharmaceutical use  | 
| 10/01/1991 | WO1991015119A1 Substituted cyclohexanediones and their herbicidal uses  | 
| 10/01/1991 | US5053524 Intermediate for synthesis of triphenylcyclopentadiene dyes  | 
| 10/01/1991 | US5053073 Thiophene derivatives useful as fungicidal, insecticidal or plant growth regulating agents  | 
| 10/01/1991 | CA2053850A1 Substituted cyclohexanediones and their herbicidal uses  | 
| 09/29/1991 | WO1991014675A1 Bicyclo[3.3.)]octane derivatives, process for producing them and their pharmaceutical use  | 
| 09/29/1991 | CA2058922A1 Bicyclo{3.3.0}octane derivatives, process for their production and their pharmaceutical use  | 
| 09/29/1991 | CA2038716A1 Stabilizer for 4-ethyl-2-hydroxyimino-5-nitro-3-hexenamide-containing preparation, stabilizing method thereof and drug stabilized thereby  | 
| 09/24/1991 | US5051526 Reagents for solid phase synthesis of polypeptides  | 
| 09/24/1991 | US5051447 Applying aromatic oximes to plants, seeds or soils  | 
| 09/24/1991 | CA1289560C Cyclohexenone derivatives, the preparation and use thereof as herbicides and plant growth regulators  | 
| 09/22/1991 | WO1991014694A1 Chiral catalysts and epoxidation reactions catalyzed thereby  | 
| 09/18/1991 | EP0446772A1 Fluorinated beta-ketoiminato metal complexes  | 
| 09/17/1991 | CA1289148C Substituted oxime-ethers and their use as bioregulators to lower the endogenous ethylene level in plants  | 
| 09/13/1991 | CA2037538A1 Fluorinated beta-ketoiminato metal complexes  | 
| 09/11/1991 | EP0445483A1 Catalytic oxidation of hydroxy containing aromatic compounds  | 
| 09/10/1991 | US5047585 Process for racemizing an optically active N-benzylidene amino-acid amide  | 
| 09/07/1991 | CA2011656A1 Compounds  | 
| 08/27/1991 | US5043095 For temperature compensation and producing a large twist of helical structures  | 
| 08/27/1991 | CA1288093C CHIRAL ESTERS OF .alpha.-SUBSTITUTED PHENYLALKANOIC ACIDS AND MESOGENIC HYDROXY COMPOUNDS, AND THEIR USE AS A DOPING SUBSTANCE IN LIQUID CRYSTAL PHASES  | 
| 08/21/1991 | EP0442172A1 Oxime derivatives and Herbicides containing the same as an active ingredient  | 
| 08/20/1991 | US5041663 Novel oxime ethers, the preparation thereof, compositions containing them and the use thereof  | 
| 08/20/1991 | US5041652 Method for the preparation of a catalyst for the ammoximation of carboxylic compound  | 
| 08/20/1991 | US5041648 Phenylhydrazones of β-ionone  | 
| 08/20/1991 | US5041545 2-hydroxybenzophenone hydrazides and derivatives thereof  | 
| 08/20/1991 | CA1287837C Herbicidal acylamino 5-mesityclclohexane-1,3-dione  | 
| 08/14/1991 | EP0441371A1 Process for preparing haloketo acid derivatives  | 
| 08/13/1991 | US5039818 For helium-neon lasers  | 
| 08/13/1991 | US5039685 Azacyclic carboxylic acid derivatives, their preparation and use  | 
| 08/09/1991 | WO1991012241A1 Hydrazine derivatives  | 
| 08/09/1991 | CA2075496A1 Hydrazine derivatives  | 
| 08/07/1991 | EP0440362A1 2,2-Dimethyl-1-nitrilo or 2,2-dimethyl-1-hydroxylamino-3-(alkyl phenyl)substituted propanes or 2-methyl-1-nitrilo-or 2-methyl-1-hydroxylamino-3-(methoxyphenyl) propane, organoleptic uses thereof and processes for preparing same  | 
| 08/07/1991 | EP0422040A4 Herbicidal bicyclic 1,3-diketone derivatives  | 
| 08/06/1991 | US5037467 Amidoxime derivatives, useful as selective herbicide  | 
| 07/31/1991 | EP0439129A2 Optically active isoxazole derivatives and intermediates for preparation thereof as well as processes for producing the same  | 
| 07/23/1991 | US5034418 Diphenylethylene derivatives, pharmaceutical compositions containing same and treatment methods  | 
| 07/23/1991 | US5034277 Film comprising at least one unimolecular layer  | 
| 07/16/1991 | US5032169 Novel oxime ethers, the preparation thereof, compositions containing them and the use thereof  | 
| 07/09/1991 | US5030755 Insecticides, miticides  | 
| 07/03/1991 | EP0435687A2 Process for isomerization of oxime ethers  | 
| 07/02/1991 | US5028733 Prostaglandins  | 
| 07/02/1991 | US5028724 Synthesis of volatile fluorinated and non-fluorinated metal-beta-ketonate and metal-beta-ketoiminato complexes  | 
| 06/26/1991 | EP0433880A1 Process for reprocessing aqueous mother liquors containing hydrochloric acid, sulphuric acid and their hydroxylammonium and ammonium salts  | 
| 06/26/1991 | EP0433451A1 Oxime derivatives and herbicides containing the same as an active ingredient  | 
| 06/25/1991 | US5026911 Process for oxidizing saturated primary amines to oximes  | 
| 06/25/1991 | US5026875 Having ketoxime stabilizers; nondegradating, nonpolymerizing, formaldehyde-free  | 
| 06/25/1991 | US5026724 Compounds with bronchodilator activity  | 
| 06/25/1991 | US5026710 Fungicides  | 
| 06/19/1991 | EP0432989A2 Calixarene and oxacalixarene derivatives and use thereof for sequestration of metals  | 
| 06/18/1991 | US5025034 Prostaglandins  | 
| 06/12/1991 | EP0431200A1 Quadratic nonlinear optical element  | 
| 06/11/1991 | US5022914 Cyclohexenone oxime ethers, their preparation and their use as herbicides  | 
| 06/06/1991 | DE3939965A1 Prodn. of 6-alkoxy-2-alkyl-4-hydroxy-pyrimidine derivs. - useful as insecticide intermediates, comprises cyclising new alkano:imido-substd. carbamoyl-acetate  | 
| 06/05/1991 | EP0430806A1 Process for the preparation of haloketals from enamines  | 
| 06/05/1991 | EP0430033A2 Microbicidal agents  | 
| 06/04/1991 | US5021581 Fungicides  | 
| 06/02/1991 | CA2031249A1 Process for producing halogenoacetals from enamines  | 
| 05/22/1991 | WO1991007374A1 α,β-UNSATURATED KETONE AND KETOXIME DERIVATIVE  | 
| 05/21/1991 | US5017618 Treatment Of Glaucoma  | 
| 05/21/1991 | US5017590 1,4-dihydropyridine-threonine compounds with cardiovascular activity  | 
| 05/16/1991 | DE3937457A1 New oxime ether derivs.  | 
| 05/15/1991 | EP0427445A1 Benzylideneaminoxyalkanoic acid (thio) amide derivative, process for preparing the same and herbicide  | 
| 05/15/1991 | EP0427224A1 Novel polycationic compound and bleach composition containing the same  | 
| 05/09/1991 | CA2029433A1 Polycationic compound and bleach composition containing the same  | 
| 05/08/1991 | EP0426460A1 Oxime ether derivative, preparation thereof and germicide containing the same  | 
| 05/03/1991 | CA2029040A1 Oxime ether derivative, preparation thereof and germicide containing the same  | 
| 04/30/1991 | US5011994 Colorless ketimines their preparation and their use as cross-linking agent  | 
| 04/23/1991 | US5010161 Of poly (phenylenebisalkylene) poly (phenylamine) with aldehyde, regenerated under hydrolysis, for use in moisture curable polyurethanes  | 
| 04/23/1991 | CA1283419C Substituted di-t-butylphenols  | 
| 04/18/1991 | WO1991005552A1 Method and compositions for inhibition of disorders associated with oxidative damage  | 
| 04/17/1991 | EP0422597A2 Derivatives of phenylacetic acid and fungicides containing them  | 
| 04/17/1991 | EP0422040A1 Herbicidal bicyclic 1,3-diketone derivatives  | 
| 04/16/1991 | US5008453 Aromatic diimines  | 
| 04/16/1991 | US5008437 Schiff base reaction product of ethyl vanillin and methyl anthranilate and organoleptic uses thereof  | 
| 04/16/1991 | US5008415 Volatile fluorinated β-ketoimines and associated metal complexes  | 
| 04/12/1991 | CA2027306A1 Phenylacetic acid derivatives and fungicides containing them  | 
| 04/10/1991 | EP0421226A2 Process for the preparation of isoxazole 4,5 dicarboxylic acid diesters  | 
| 04/10/1991 | EP0421102A2 Substituted acrylic acid esters  | 
| 04/09/1991 | US5006567 Process for foaming polymer compositions with hydrazone compounds and compositions associated therewith  | 
| 04/09/1991 | US5006159 Oximes, effective against grassy weeds but selective to broadleaf crops such as cotton, sugar beets, soybeans, wheat, rice and corn  | 
| 04/03/1991 | EP0420091A1 Aniline derivatives and fungicides containing them  | 
| 04/03/1991 | EP0211030B1 Ferro-electric smectic liquid crystal materials based on terpenoid derivatives  | 
| 03/30/1991 | CA2026270A1 Aniline derivatives and fungicides containing them  | 
| 03/27/1991 | EP0418362A1 Trifluoromethylcyclohexane derivatives.  | 
| 03/26/1991 | US5003067 Pyridazinone manufacture  | 
| 03/26/1991 | CA1282080C Process for the resolution of 1-aminoindanes  | 
| 03/20/1991 | EP0418038A1 Naphthalene derivative and preparation method thereof  | 
| 03/20/1991 | EP0417870A2 Chelates for complexation of radioactive isotopes, their metal complexes and their use in diagnosis and therapy  | 
| 03/20/1991 | EP0417167A1 Process for the synthesis of o-substituted oxime compounds  | 
| 03/19/1991 | US5001264 N-phenyl-2,2,6,6-tetrahalocyclohexaneimine and processes for preparing 2,2,6,6-tetrahalocyclohexaneimine derivative and 2,6-dihaloaniline derivative  | 
| 03/19/1991 | US5001261 Cyclohexenone derivatives and their use for controlling undesirable plant growth  | 
| 03/19/1991 | US5001209 Non-linear optical active diols and polyurethanes prepared therefrom  | 
| 03/19/1991 | CA1281731C Process for production of oxime derivatives  | 
| 03/19/1991 | CA1281716C Insecticidal n-substituted-n'-substituted-n,n'- diacylhydrazines  | 
| 03/15/1991 | CA2024971A1 Naphthalene derivative and preparation method thereof  |