Patents
Patents for C07C 201 - Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton (5,786)
06/1990
06/12/1990CA1270262A1 Process for the preparation of dinitroalkylbenzenes
06/12/1990CA1270256A1 5-arylalkyl-4-alkoxy-2(5h)-furanones, intermediates and processes for the preparation thereof and medicaments containing them
06/12/1990CA1270251A1 2-(heteroalkyl)-1,4-dihydropyridines, process for their preparation and pharmaceutical compositions containing them
06/06/1990EP0371884A1 Process for the preparation of dinitrotoluenes
06/06/1990EP0371362A2 Process for the preparation of 1-Nitro, 2-carboxy-anthraquinone
05/1990
05/31/1990CA2003482A1 Compound, composition, process and use
05/31/1990CA2001989A1 Preparation of 1-nitroanthraquinone-2-carboxylic acid
05/30/1990EP0370644A2 Herbicidal compounds
05/29/1990US4929772 Process for preparing polyhalogenated carbinols
05/29/1990US4929710 Hydroxycarboxylic acid/Unsaturated aromatic hydrocarbon resin useful as recording material
05/29/1990US4929291 Propellant containing 2-hydroxymethyl-1,3-propanediol trinitrate
05/23/1990CN1042349A 环戊烷衍生物 Cyclopentane derivatives
05/23/1990CN1008055B Pesticide composition with acrylic derivs. as active component and process for preparing same, and use thereof
05/22/1990US4927980 Reacting chloroaromatic compound with alkali metal fluoride salts
05/22/1990CA2003481A1 Herbicidal compounds
05/16/1990EP0368770A1 Process for the preparation of nitrophenols
05/16/1990EP0368604A2 New diamino and dinitro compounds and a process for preparing the diamino compounds
05/16/1990EP0368138A1 Adsorbent for chromatography
05/16/1990CN1042143A Process for preparing dinitrotolenes
05/15/1990US4925876 N-benzolyl-N'-trihalo-haloalkoxyphenylureas and pesticidal compositions containing them
05/15/1990US4925565 Process for extracting and disposing of nitrophenolic by-products
05/08/1990US4923580 A, a-dibromoalkylarenes, hydrogen bromide, hydrogen peroide
05/03/1990DE3917904A1 New 5-fluoro-4-halo-1-nitro-benzoyl-acetic acid cpds. - useful as intermediates for antibacterial quinolone derivs.
05/01/1990US4922030 Method of preparing halogenated nitroalcohols
05/01/1990US4921970 Nitration or phthalimides
05/01/1990US4921524 Herbicides
05/01/1990CA1268479A1 Substituted m-aminophenol couplers for hair dye compositions and process for their preparation
05/01/1990CA1268475A1 Optically active herbicides
04/1990
04/25/1990EP0365495A2 9-Anthrylalkyl compounds, their preparation and their use
04/18/1990EP0363585A1 N-aryl nitrogen heterocycles
04/17/1990US4918250 Process for the production of dinitrotoluene using an inorganic salt as a phase separation agent
04/17/1990US4918236 Herbicides
04/10/1990US4916230 Process for preparing novel N-(acyloxy-alkoxy)carbonyl derivatives useful as bioreversible prodrug moieties for primary and secondary amine functions in drugs
04/10/1990US4916147 3-[(4-Aroyl) phenoxy (or phenylthio)]-cyclopentanecarboxylic acid analogues and treatment of cerebral edema therewith
04/03/1990US4914238 Process for the production of diisocyanates, selected diisocyantes produced thereby and the production of polyurethane plastics therefrom
04/03/1990US4914128 Controlling phytopathogens
04/03/1990CA1267419A1 Process for the production of high energy material
03/1990
03/28/1990EP0360552A2 The preparation of nitroesters via the reaction of nitroparaffins with cyanoformates
03/28/1990EP0360351A1 Process for the preparation of cyclopentene, cyclopentane and cyclohexane derivatives
03/27/1990US4912262 Reacting a cyclohexane-1,3,5-trione compound with a acylnitrile in presence of a base and Lewis acid
03/27/1990US4912246 1,3-bis(alkylcarbonato)-nitrobenzenes
03/27/1990CA1267158A1 Production of dibromonitro compound
03/21/1990EP0359305A1 Cyclopentane derivatives
03/20/1990US4910345 Process for the purification of nitrobenzaldenhyde
03/20/1990US4910322 Synthesis of geminal dinitro compounds
03/20/1990US4910305 Containing a protected 4-hydroxyphenyl
03/14/1990CN1040332A Fluorine-containing aromatic sulfonic acid catalyst, process for the prodn. and use thereof
03/13/1990US4908466 Process and reaction vessel for production of alkyl nitrite
03/13/1990US4908110 Laser-induced nitration
03/12/1990EP0303617A4 Acid catalyzed process.
03/07/1990EP0357167A2 Substituted trifluorethhyl esters of phenylacetic acid, processes for their preparation and their use as pesticides
03/06/1990US4906771 Process for catalytic oxidation of ortho-nitroaromatic compounds to ortho-nitroaromatic acids
03/06/1990US4906770 Perfluoropolyethers having mono- and bis-hypofluorite end groups
03/06/1990US4906402 Liquid crystal material
02/1990
02/28/1990EP0356091A2 Nitration of aromatics
02/21/1990CN1039809A Process for preparing substituted aminomethytetralins and their heterocyclic analogues
02/21/1990CN1039799A Preparation and application for 2-(2'-nitrobenzoyl)-1, 3-cyclohe-xanediones
02/15/1990DE3921809A1 Niedermolekulare glasbildende verbindungen und ihre verwendung Low molecular glass-forming compounds and their use
02/14/1990EP0354444A2 Process for the introduction of fluorine on aromatic nucleus by nucleophilic exchange
02/13/1990US4900846 Process for making 1,3-dioxane derivatives
02/06/1990US4898877 Circulation-active cyclohexenecarboxylates
02/06/1990CA1265521A1 Chelators whose affinity for calcium is decreased by illumination
01/1990
01/31/1990EP0352613A2 Substituted amino methyl tetralines, and their heterocyclic analogous compounds
01/31/1990EP0352563A2 Process for the hydroxylation of electrophilic aromatic compounds
01/30/1990CA1265133A1 1,8-dihydroxy 10-phenyl 9-anthrone or 9-anthranol mono, di and tri-esters; process for preparing the same; cosmetic compositions containing these products
01/23/1990US4895974 Agriculture
01/23/1990CA1264763A1 Process for the preparation of diphenyl ethers
01/16/1990US4894473 Process for preparing 7-(2-hexyl-5-hydroxy-cyclopentyl)-heptanoic acid
01/11/1990WO1990000087A1 Fluorinated-aromatic sulfonic acid catalyst, process for its production, and its use
01/10/1990EP0350113A1 Liquid crystalline polyesters
01/10/1990EP0350112A1 Polyurethanes prepared from non-linear optical active diols
01/10/1990EP0350069A2 Method for oxidizing unsaturated aromatic compounds
01/09/1990US4892686 Process for the preparation of 1-nitroanthraquinone
01/03/1990EP0348766A2 Alpha-arylacrylic-acid esters and fungicides containing same
12/1989
12/28/1989WO1989012620A1 Process for the production of dinitrotoluene or mononitrobenzene
12/26/1989US4889946 Phenoxybenzoic acid compounds and herbicidal and plant growth regulant compositions
12/26/1989US4889870 2-(2,2-Difluorocyclopropyl)alkyl esters, processes for their preparation and their use as insecticides and acaricides
12/20/1989EP0346841A2 1-Aryl-naphthoic acid amide and microbicides containing these
12/20/1989CN1038093A Improvements in or relating to organic compounds
12/13/1989EP0346276A1 Substituted benzocyclobutenes, process for their preparation and their use
12/13/1989EP0346185A1 Process for the manufacture of nitromethane
12/12/1989CA1263873A1 Process for the production of nitrobenzene
12/06/1989EP0344936A1 Method for the bromination of aromatic compounds
12/05/1989US4885418 Treating with a water-containing anion exchanger in the oh form
12/05/1989US4885388 Chemical intermediates for the preparation of herbicides and plant growth regulators
11/1989
11/29/1989EP0344109A2 Substituted naphthacene-5,12-diones and their use
11/29/1989EP0343441A2 Fluorinated bis-aryloxy-substituted alkenes, method for their production an their application
11/28/1989CA1263411A1 Preparation of alkoxy halides
11/23/1989EP0343048A1 Process for producing nitrobenzenes
11/15/1989EP0341466A1 Process for the bromination of Nitroalcohols
11/14/1989US4880571 Oxidation of nitronaphthalene
11/08/1989EP0340560A2 Aldolcondensation of nitroparaffines
11/08/1989EP0182872B1 A process for the preparation of cyclobutene-substituted aromatic hydrocarbons
11/07/1989US4879415 Separate streams, nitroaniline or nitrophenol, hydrochloric acid, chlorination
11/07/1989US4879401 Process for removal of impurities in alkyl nitrite formation
11/02/1989EP0339956A1 Process for producing nitrophenol compound
11/02/1989EP0339455A2 Process for preparing biaryl compounds
10/1989
10/25/1989EP0338992A2 Substituted aryl and heteroaryl bicyclodiones
10/24/1989US4876376 Halogen-fluorine exchange in hydrofluoric acid without catalyst; plant safening agents
10/18/1989EP0337210A1 Process for the preparation of carboxylic-acid halides
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