Patents
Sitemap › C07 - Organic chemistry › C07C - Acyclic or carbocyclic compounds › C07C 201 - Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
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)
08/1981
08/26/1981EP0034402A2 Method of preparing fluorine-substituted diphenyl ether derivatives and fluorine-substituted halogeno benzene derivatives for use therein
08/19/1981EP0033829A1 Process for the preparation of 1-nitro-benzene-2 carboxylic acid alkyl ester-5-carboxylic acids
08/18/1981US4284797 Salt formation, precipitation
08/12/1981EP0033629A1 2-Nitro-5-(substituted-phenoxy) benzoate esters of hydroxyalkanoic acids and derivatives thereof as herbicides
08/11/1981US4283345 Thermal pretreatment in the presence of a hydrogenation catalyst followed by nitrogenation
08/04/1981CA1106368A1 Process for the mononitration of anthraquinone
07/1981
07/29/1981EP0032620A1 Process for preparing therapeutic 2-arylpropionic acids and esters, and novel arylmethylmalonate esters
07/21/1981CA1105490A1 Process for the preparation of 2-nitrobenzaldehyde
07/15/1981EP0032121A2 Substituted tetrafluorobenzyl alcohols and halides
07/15/1981EP0032063A2 Novel substituted arylene compounds and processes for their production
07/15/1981EP0031982A2 3-Substituted-3-fluoropyruvic acids and their esters and salts, and production thereof
07/08/1981EP0031416A1 Process for the preparation of substituted benzaldehydes
07/07/1981US4277624 Process for preparing diphenyl ethers
07/07/1981US4277557 Photographic material containing a stabilizing agent
06/1981
06/24/1981EP0030761A1 Anisotropic cyclohexyl ethers
06/24/1981EP0030676A1 Derivatives of phenoxybenzoic acid, process for their preparation and their use as herbicides and as plant growth regulators
06/23/1981CA1103696A1 Herbicidally active, nuclear-substituted phenoxy- phenoxy-alkanecarboxylic acid derivatives and use thereof for controlling grass-like weeds
06/17/1981EP0030251A1 Process for the preparation of (phenoxy or benzyl)phenoxypropionic acids and their alkali salts
06/16/1981CA1103270A1 Higher halophenoxy benzoic acid esters
06/09/1981US4272450 Intermediate
05/1981
05/26/1981US4270013 Process for the separation of nitrotoluene isomers
05/26/1981US4269848 5-Substituted indan-2-carboxylic acid and functional derivatives
05/26/1981CA1101883A1 Process for separating mixtures of 3- and 4- nitrophthalic acid
05/26/1981CA1101866A1 Herbicidally active substituted diphenyl ether derivatives, processes for their manufacture and herbicidal compositions containing them, and their use for selective weed control
05/19/1981CA1101438A1 Substituted fluoroacylresorcins and drugs, cosmetics and pesticides containing them
05/13/1981EP0028305A1 Diaryl compounds and pharmaceutical formulations containing them
05/12/1981CA1100988A1 Phenoxy-alkane carboxylic acids derivatives
05/06/1981EP0028063A1 Phenol derivatives, processes for their preparation and pharmaceutical compositions containing them
05/06/1981EP0027941A1 Process for the preparation of carboxylic acid halides
05/06/1981EP0027891A1 Ammonium salts, a process for the preparation of amines underlying these, and coating compositions on the basis of manufactured polyurethane or epoxy resin products which contain the ammonium salts
05/05/1981US4266069 Processes for the preparation of hydratropic acids and esters
04/1981
04/28/1981US4264777 Herbicidal diphenyl ether compound
04/28/1981US4264769 Process for the preparation of hydroxyphenyl ethers
04/22/1981EP0027213A1 Process for the production of cellulose by using dispersions of nitroanthraquinones
04/14/1981US4262152 Preparation of trifluoromethylphenyl nitrophenylethers
04/14/1981US4262148 Synthesis of hexanitrobenzene
04/14/1981US4262014 Miticides, nematocides
04/14/1981US4261908 Process for isolating aromatic dinitro compounds
04/14/1981CA1099292A1 Preparation of 2-nitro-2-methyl-1-propanol
04/14/1981CA1099266A1 Process for the preparation of mixtures of dinitroanthraquinones with a high content of 1,5- and 1,8- dinitroanthraquinone
04/08/1981EP0026289A1 Antihypertensive polyhalohydroxyisopropyl phenylalkanoic and phenylalkenoic acids, amides and esters, pharmaceutical compositions therefrom and intermediates thereto
04/07/1981US4260838 Process of making nitroparaffins by nitration in the gaseous phase
04/07/1981US4260837 Fuming acid, producing uniform particle size
03/1981
03/31/1981US4259248 Process for the preparation of mixtures of dinitroanthraquinones with a high content of 1,5- and 1,8- dinitroanthraquinone
03/25/1981EP0025733A2 Process for purifying trinitro-2,4,6 toluene
03/24/1981US4258224 Process for recovering TNT isomers
03/24/1981US4257986 Process for refining aqueous acid mixtures utilized in nitration of aromatics
03/18/1981EP0025348A1 A process for the nitration of halobenzenes
03/10/1981US4255358 Process for the production of hexanitrostilbene
03/03/1981US4254262 Process for producing phenoxycarboxylic acid derivative
03/03/1981US4254146 Antiinflammatory agents
02/1981
02/17/1981US4251455 Continuous closed loop nitration of polyhydric alcohols
02/11/1981EP0023730A1 Cyclohexylcyclohexanoates, process for their preparation and liquid-crystal mixture containing them
02/11/1981EP0023584A1 Process for the preparation of trifluoromethyl naphthalenes
02/11/1981EP0023557A1 Process for the preparation of substituted nitroaryl compounds
02/10/1981US4250123 Chemical intermediates for fungicides
02/03/1981CA1095087A1 Process for the preparation of nitrosobenzene
02/03/1981CA1095042A1 Heterocyclic phenyl ethers and herbicides containing same
01/1981
01/27/1981CA1094577A1 Countercurrent dinitration of basalin precursor
01/27/1981CA1094573A1 Herbicidal and fungicidal agents
01/21/1981EP0022533A1 Process for the preparation of polyvalent phenols
01/14/1981EP0022387A1 Process for the preparation of benzene derivatives by the reaction of an activated halobenzene with an organic compound containing an oxygen or sulphur anion
01/14/1981EP0022310A2 Process for the preparation of 3-dimethylamino-1-phenyl-1-(m-chlorophenyl) propan-2-ol and intermediate for this process
01/14/1981EP0022241A1 Process for the removal of nitrousing agent(s) from nitrated aromatic compounds
01/13/1981CA1093583A1 Process for the preparation of nitrophenyl-acetylene precursors
01/07/1981EP0021868A1 Process for the preparation of diaryl ethers
12/1980
12/30/1980US4242357 Insecticides, miticides
12/30/1980US4242286 Process for preparing benzotrifluoride and its derivatives
12/30/1980US4242277 Nitrosation process
12/23/1980US4241229 Recovery of nitrated aromatic compounds from nitration wash liquors
12/23/1980US4241226 Preparation of 2-nitro-2-methyl-1-propanol
12/23/1980US4240986 Process for the separation of ortho-chloronitrobenzene
12/10/1980EP0020000A1 Activated ester monomers, polymers formed therefrom and coating compositions containing said polymers
12/10/1980EP0019787A2 2-Phenylalken-1-yl-cyclopropane-carboxylic acid esters, process for their preparation and their use as insecticides and acaricides; intermediates in their preparation
12/10/1980EP0019744A2 Process for the preparation of 3-nitro-4-methylphenyl chloroformate
12/10/1980EP0019665A1 Liquid-crystal compositions
12/09/1980US4238625 Activators of lead and/or bismuth and/or their compounds for oxidation with platinum or palladium catalyst
12/09/1980CA1091240A1 Phenoxy-phenoxy-alkanecarboxylic acid derivatives having a herbicidal action, their production, compositions containing them, and their use
11/1980
11/26/1980EP0019388A1 Preparation of trifluoromethyl-substituted phenols and phenates and the preparation, from these phenols and phenates, of nitro- and trifluoromethyl-substituted diphenyl ethers
11/26/1980EP0019377A1 1-Hydrocarbyloxyphenyl-1,2-diphenylalkene derivatives, their manufacture and a pharmaceutical composition containing them
11/26/1980EP0019281A2 Process for the removal of nitrozation agents from nitrated aromatic compounds
11/26/1980EP0019089A1 5-Aryl-3-(1'-halogen-1'-methyl)ethyl-pent-4-en-carboxylic acid esters, process for their preparation, and their use for the preparation of 3-(2-arylvinyl)-2,2-dimethyl-cyclopropane-1-carboxylic acid esters
11/25/1980US4236029 By reacting 6-t-butyl-3-methylanisole with a nitrating mixture
11/25/1980US4235926 Derivatives of cyclobutane
11/25/1980CA1090374A1 Denitrosation of organic nitrosamines
11/25/1980CA1090368A1 Electron acceptor monomers and polymers: process of preparation and method of use
11/25/1980CA1090367A1 Phenoxyphenoxyalkanecarboxylic acid derivatives having a herbicidal and plant growth regulating action
11/18/1980US4234520 Selective adsorption with zeolite
11/18/1980US4234470 Catalytic nitration of aromatic compounds
11/18/1980CA1089873A1 Phenoxy-phenoxy valeric acids and derivatives thereof
11/12/1980EP0018532A1 1-Aryl-4-methyl-penta-1,2-dienes, process for their preparation and their use for the preparation of 3-(2-aryl-vinyl)-2,2-dimethylcyclopropane-1-carboxylates
11/11/1980US4233463 By adding water in at least two additions
11/04/1980US4232175 Reaction of nitrite and mineral acid
11/04/1980CA1088943A1 Preparation of a 5-substituted indane-2 carboxylic acid and functional derivatives
10/1980
10/28/1980US4230567 Process for working up effluents containing nitro-hydroxy-aromatic compounds
10/21/1980US4229595 Method of producing nitro-phenols
10/21/1980US4229470 Compounds having a trichloromethylic end group having a juvenile hormone action on insects and acaricide activity
10/21/1980US4229365 Manufacture of substituted fluorobenzenes
10/15/1980EP0017560A1 Process and installation for the production of nitroparaffins by nitration of hydrocarbons in the gaseous phase
10/15/1980EP0017559A1 A gas-phase hydrocarbon nitration pressure reactor
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