Patents
Patents for C07C 241 - Preparation of compounds containing chains of nitrogen atoms singly-bound to each other, e.g. hydrazines, triazanes (2,288)
03/1991
03/26/1991US5002692 Amide liquid crystal compounds: mixtures and devices using them
03/19/1991US5001262 Method for synthesizing an aromatic hydrazine compound
03/19/1991US5001209 Non-linear optical active diols and polyurethanes prepared therefrom
03/19/1991CA1281716C Insecticidal n-substituted-n'-substituted-n,n'- diacylhydrazines
03/12/1991US4999363 Tricyclic compounds
03/12/1991CA1281338C Colourless ketimines, their preparation and their use as cross-linking agent
03/12/1991CA1281332C Insecticidal n'-substituted-n,n'-diacylhydrazines
02/1991
02/26/1991US4996286 Trihydrazide latent curing agent for epoxy resins
02/19/1991US4994615 Process for the preparation of optically active secondary arylamines
02/19/1991US4994601 Herbicidal α-(5-aryloxy-naphthalen-1-yl-oxy)-propionic acid derivatives
02/19/1991US4994495 Fungicides
02/12/1991US4992089 Herbicidal compounds, compositions and use
02/12/1991CA1280110C LIQUID CRYSTALLINE FERROELECTRIC DERIVATIVES OF BRANCHED ACYCLIC .alpha.-CHLOROCARBOXYLIC ACIDS
02/06/1991EP0411199A1 Imino [(3-halogenophenyl)amino] acetic acid derivatives and herbicides containing same
02/05/1991US4990633 Fluorinated bisaryloxy-substituted alkenes, process for their preparation and their use
02/05/1991US4990232 Process for the preparation of carbodiimides
01/1991
01/22/1991US4987221 Bisdiazonium salts of 4,4'-diamino-3,3'-dialkoxybiphenyls and a process for their preparation
01/15/1991US4985427 Triazine derivatives
01/08/1991US4983755 Nematocides
01/02/1991EP0144396B1 Polyhydroxybenzoic acid derivatives
01/01/1991US4981489 Disazo compounds and formulations containing same
11/1990
11/27/1990US4973726 Herbicidal 3-aminopyrazolin-5-ones
11/22/1990EP0398842A1 Hydrazide derivatives
11/16/1990CA2016731A1 Hydrazide derivatives
11/14/1990CN1046894A 2,6-dimethyl hydrazinobenzene hydrochloride salt making method
11/13/1990US4970319 Process for the preparation of acyl isocyanates
11/13/1990US4970120 Hydazone and nitro-substituted phenyl compound, and unsaturated amide
11/06/1990US4968804 Bipyridine compounds
11/06/1990US4968720 Phenylcarbodiimides, compositions containing them and their use in the control of pests
11/06/1990CA1276026C Functionalized monomers from 1-(1-isocyanato-1- methylethyl)-3 or 4-(1-methylethenyl) benzene
10/1990
10/24/1990EP0232541B1 Polyisocyanate compositions containing latent tin-catalysts, their use in the preparation of polyurethane resins and reaction products of sulfonyl isocyanates with selected tin compounds
10/24/1990CN1046328A Alkali cycling process for the production of hydrated hydrazine from urea
10/23/1990US4965389 Phenoxyphenylthioureas phenoxyphenylisothioureas and phenoxyphenylcarbodiimides and use thereof for controlling pests
10/23/1990CA1275419C Second harmonic generation with schiff bases
10/18/1990DE4011590A1 Verfahren zur herstellung von 2,2-bis-(hydroxymethyl)-propionsaeure-phenylhydrazid Process for the preparation of 2,2-bis- (hydroxymethyl) -propionic acid phenylhydrazide
10/13/1990CA2014358A1 Process for the preparation of 2,2-bis(hydroxymethyl)-propionic acid phenylhydrazide
10/10/1990EP0391606A1 Process for the production of an aromatic hydrazo compound
10/09/1990US4961876 Liquid crystalline ferroelectric derivatives of branched acyclic alpha-chlorocarboxylic acids
10/02/1990CA1274824A1 5-aralkyl substituted 2h-benzotriazoles and stabilized compositions
09/1990
09/25/1990US4959448 Liquid crystalline side-chain polyesters prepared by polycondensation reactions
09/25/1990CA1274527A1 5-higher alkyl substituted-2h-benzotriazoles and stabilized compositions
09/11/1990US4956387 Substituted hydrazones and fungicides containing these compounds
09/04/1990US4954655 Preparation of alkylhydrazines
08/1990
08/21/1990US4950813 Preparation of substituted benzotrichlorides
08/21/1990US4950742 Reacting with chlorine and alohol in nonaqueous organic solvent
08/14/1990CA1272716A1 Substituted aminoxy-propionamides
08/07/1990US4946990 Process for the preparation of isocyanates and their use of the preparation of polyisocyanates containing ester groups
08/07/1990US4946854 3-aminobenzoylphenylureas useful for controlling parasites and insects that attack domestic animals and livestock
08/01/1990EP0380146A2 Process for the preparation of N-omega-hydroxyalkyl, N-omega-hydroxy-oxa-alkyl and N-omega-hydroxy-polyoxa-alkyl carbamates
08/01/1990EP0256097B1 Vinyl compounds and liquid crystal phase
07/1990
07/24/1990US4943526 Gamma-glutamyl-4-azoanilides, process for the preparation thereof and diagnostic agents containing them
07/17/1990US4942225 Transfer to active methylene group an azo or diazo group
07/04/1990EP0331061B1 Substituted hydrazones and fungicides containing them
07/03/1990US4939287 Liquid crystals
07/03/1990US4939241 Amino acid derivatives of antitumor activity
06/1990
06/19/1990US4935486 Process for the production of modified polyisocyanates, the polyisocyanates obtainable by this process and their use as binders or as a binder component
06/12/1990US4933449 Preparing 3-(4 chlorophenyl)-3-(3,4-dimethoxyphenyl) acrylic acid morpholide in the presence of potassium tert-butylate
05/1990
05/30/1990EP0370953A2 Process for the preparation of dye intermediates
05/23/1990EP0368946A1 1,2-dioxetanes.
05/23/1990CN1008055B Pesticide composition with acrylic derivs. as active component and process for preparing same, and use thereof
05/22/1990US4927865 Anthraquinoylcarboxylic acid hydrazides, curable compositions and use thereof
05/22/1990CA1269396A1 Process for producing 2-isocyanato-2,3-dehydro carboxylic esters
05/14/1990EP0368946A4 1,2-dioxetanes.
05/08/1990CA1268891A1 Process for the production of blocked polyisocyanates containing carbodiimide groups, the polyisocyanates obtainable by this process and their use for the production of plastics
05/08/1990CA1268781A1 Preparation of disecondary amines from diolefins and primary amines
05/01/1990CA1268475A1 Optically active herbicides
04/1990
04/25/1990EP0365495A2 9-Anthrylalkyl compounds, their preparation and their use
04/24/1990US4920222 Reacting a benzophenone and an acetamide in presence of sodium tertiary alcoholate
04/18/1990EP0363585A1 N-aryl nitrogen heterocycles
04/17/1990US4918220 Separation of toluene diisocyanate from the residues of the production thereof
04/10/1990US4916157 Acylated naphthylamines as plant fungicides
04/04/1990EP0362001A1 N-cycloalkyl benzylamines alpha,alpha disubstituted, the process for their preparation, their use as drugs and their synthesis intermediates
04/04/1990EP0361990A1 Disubstituted benzylamines, the process for their preparation, their use as drugs and their syntheses intermediates
04/04/1990EP0361532A2 Ethane derivatives
04/04/1990EP0361067A1 Disubstituted naphthalines, preparation processes and their herbicidal use
04/03/1990US4914238 Process for the production of diisocyanates, selected diisocyantes produced thereby and the production of polyurethane plastics therefrom
03/1990
03/27/1990US4912217 Preparation of 3,3-diphenylacrylic acid amides
03/20/1990US4910200 Acrylic acid morpholides, fungicidal compositions and use
03/20/1990US4909830 Herbicidal 3-aminopyrazolin-5-ones, compositions and use
03/20/1990CA1266950A1 Method and apparatus for multipolymer synthesis systems
03/14/1990EP0203957B1 5-(3,5-disubstituted phenylazo)-2-hydroxybenzene acetic acids and salts and lactones thereof, and pharmaceutical compositions of said acids, salts, and lactones
03/07/1990CN1040191A Insecticidal n'-substd.-n-alkyl-carbonyl-n'-acylhydrazines and n'-substd.-n-acyl-n'-alkylcarbonylhydrazines
03/06/1990US4907278 Integrated processing unit, particularly for connected speech recognition systems
03/06/1990US4906402 Liquid crystal material
03/06/1990CA1266484A1 Tert-octylhydrazine, its salts and derivatives
02/1990
02/28/1990EP0355443A2 Cyclic process for the preparation of (cyclo)aliphatic diisocyanates
02/15/1990DE3921809A1 Niedermolekulare glasbildende verbindungen und ihre verwendung Low molecular glass-forming compounds and their use
02/07/1990EP0354078A2 Derivatives of benzocycloheptene, method for their preparation and pharmaceutical compositions containing same
02/07/1990EP0353931A2 Method of making aromatic hydrazines
02/06/1990US4898983 Preparation of aryl carbonyl compounds
02/06/1990US4898977 Processes for the preparation of 5-amino-4-hydroxyvaleric acid derivatives
01/1990
01/31/1990EP0352832A1 Compounds with bronchodilator activity
01/31/1990EP0352718A2 Partially fluorinated compounds and polymers
01/30/1990US4897424 Aryloxyphenylthioureas, aryloxyphenylisothioureas and aryloxyphenylcarbodiimides and pesticidal compositions containing them
01/24/1990EP0351647A2 2,2-Difluorocyclopropyl derivates
01/23/1990US4895920 Process for the preparation of polyurethanes with liquid crystal properties and diisocyanates suitable for carrying out the process
01/23/1990CA1264763A1 Process for the preparation of diphenyl ethers
01/17/1990CN1038810A Process for preparation of 3,3-diaryl acrylic acid amides
01/16/1990US4894181 Carbocyclic compounds
01/16/1990US4894094 Disazo compounds and formulations containing same
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