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)
01/1991
01/30/1991CN1048848A Substituted bycycloheptandione derivatives
01/23/1991EP0409172A2 Process for dimerizing aromatic halogen compounds
01/23/1991EP0408759A1 Method of obtaining bromated aromatic and heterocyclic combinations containing acceptor groups
01/22/1991US4987266 N-alkylpyrrolidone as cosolvent
01/22/1991US4987247 Intermediate for herbicide
01/22/1991US4987138 Hypotensives
01/22/1991US4986920 Selective recovery of a nitrophenolic by-product from nitration waste water by precipitation
01/22/1991US4986917 Selective recovery of a nitrophenolic by-product from nitration waste water by extraction
01/15/1991US4985584 Process for the production of high energy materials
01/15/1991US4985570 Production of tetrahydrophthalimide compound
01/15/1991US4985357 Yeasts, fungi, protozoa
01/05/1991WO1991000260A1 Substituted bicycloheptandione derivatives
01/01/1991US4981854 Bactericides, animal growth regualtors
12/1990
12/25/1990US4980496 Method for producing C1 to C5 alkyl nitrides
12/25/1990US4980353 Bactericides, animal growth regulators
12/19/1990EP0402688A2 1,3-Di-arylmethoxy-4,6-dinitrobenzenes, process for their preparation and process for preparing 4,6-diaminoresorcin
12/19/1990EP0402485A1 Method of obtaining 2-bromine-4,6-dinitrochlorobenzene
12/18/1990US4978808 Nitration of 2,2-bis/p-hydroxyphenyl/hexafluoropropane with nitric acid in a low fatty acid
12/18/1990US4978790 4,4'-bis[2-(4-hydroxy-amino-phenyl)hexafluoroisopropyl]-diphenylethers and their use
12/18/1990US4978769 Process for introducing fluorine atoms into aromatic rings by nucleophilic exchange
12/12/1990EP0402207A2 Process for producing nitro-benzenes
12/12/1990EP0401946A2 Allyl esters of substituted phenylacetic acid and their use as pesticides
12/11/1990CA1277666C Asymmetrical alkyl diphenylakylaminoalkyl esters of l, 4-dihydro-2,6-dimethylpyridine-3,5-dicarboxylic acid
11/1990
11/28/1990EP0399293A1 Process for preparing 2-chloro-4-nitro-alkylbenzene
11/27/1990US4973772 Reacting chloroaromatic compound with alkali metal fluoride in presence of phase transfer agents
11/27/1990US4973771 Phase transfer catalysts
11/27/1990US4973770 Atomizing sulfuric/nitric acid mixture, mononitrated product
11/27/1990US4973736 Dye, drug and herbicide intermediates
11/27/1990US4973735 Substituted trifluoroethyl esters of phenylacetic acid, processes for their preparation and their use as pesticides
11/27/1990CA1276938C Arylacetic acid derivatives
11/20/1990US4971995 Inhibitors of monoamine oxidase, neurological disorders, aging, memory problems, schizophrenia, psydhaesthinia, parkinson*s disease
11/20/1990CA1276651C Process for preparing p-nitrophenol
11/13/1990CA1276172C Hydroxyphenyl- and hydroxyphenoxyalkanoic acid iodo propargyl esters
11/07/1990EP0395729A1 Ligand-accelerated catalytic asymmetric dihydroxylation.
11/07/1990CN1010310B Process for preparing agent of anti-hyperlipidemia
11/06/1990US4968836 From a hydrocarbyloxy halogenated tetrahydrofuran
11/06/1990US4968832 Novel asymmetric diesters of 1,4-dihydro-2,-dimethyl-pyridine-3,5-dicarboxylic acid
11/06/1990US4968681 Substituted hydroxylamines
11/06/1990US4968677 Substituted 1-aryl-2-napthoylamines and their use as microbicides
11/01/1990WO1990012781A1 Process for the production of dinitrotoluene using an inorganic salt as a phase separation agent
10/1990
10/31/1990EP0395342A2 Process for the preparation of fluorine-containing organic compounds
10/31/1990EP0394985A1 Process for preparing nitro benzoic acid alkyl esters
10/31/1990EP0394957A2 Crystalline form of magnesium salt of mono-p-nitrobenzyl malonate and process for producing the same
10/31/1990CN1046521A Process for produciton of dinitrotoluene using inorganic salt as phase separation agent
10/30/1990US4967009 Reacting unsaturated aromatic compounds with aromatic iodosyl compounds to yield aromatic aldehydes or ketones
10/30/1990US4966995 Process for the preparation of chlorides of carboxylic acids
10/26/1990CA2015439A1 Process for the preparation of alkyl nitrobenzoates
10/24/1990EP0280992B1 Cyclohexene carboxylic-acid esters, process for their preparation and their use
10/23/1990US4965396 Intermediates for quinolon derivatives; bactericides
10/23/1990US4965361 Preparation of 4-substituted aryl olefins
10/09/1990US4962198 Process for the hydroxylation of electrophilic aromatic compounds
10/03/1990EP0253836B1 Preparation of fluoroaromatic compounds in dispersion of potassium fluoride
10/03/1990CN1045771A Substd. trifluorethyl esters of phenylacetic acid, processes for preparation and use as pesticides thereof
10/02/1990US4960950 Formation of nitrophenyl ethers from polyols and nitroanisoles
10/02/1990CA1274840A1 Substituted aminoxy succinates and the use thereof as stabilizers
09/1990
09/25/1990US4959448 Liquid crystalline side-chain polyesters prepared by polycondensation reactions
09/20/1990DE3925437C1 Bi:aryl cpds. prepn. - by coupling two halo-aromatic cpds.
09/19/1990EP0388322A1 Preparation of 4-substituted aryl olefins
09/11/1990US4956123 Method for manufacture of fluorine-containing aromatic derivatives
09/11/1990CA1273894A1 Process for preparing 3'-halodiphenylethers
09/05/1990EP0385884A1 Process for the preparartion of dinitrotoluene
09/05/1990CN1045097A Process for preparing dinitrotoluenes
09/04/1990US4954657 Process for the preparation of o-nitrophenetole
09/04/1990US4954648 Method for the bromination of aromatic compound
09/04/1990US4954165 Substituted benzoyl derivatives and selective herbicides
09/04/1990CA1273580A1 Pharmaceutical composition containing as active ingredient at least one dihydroxi-1,8 phenyl-10 anthrone-9 anthranol-9 mono-, di- or tri-ester
08/1990
08/28/1990WO1990009973A1 Preparation of 4-substituted aryl olefins
08/28/1990US4952720 Ortho-substituted benzyl carboxylates and fungicides which contain these compounds
08/28/1990US4952708 Method for preparing biaryl compounds
08/28/1990CA2046643A1 Preparation of 4-substituted aryl olefins
08/22/1990CN1044808A Method for bromination of aromatic and heterocyclic compounds containing acceptor groups
08/21/1990US4950756 Preparation of 1-nitroanthraquinone-2-carboxylic acid
08/21/1990CA2008161A1 Process for preparing dinitrotoluenes
08/08/1990EP0381623A1 Process for the production of substituted cyclopropanals
08/08/1990EP0381130A2 Production of alpha-unsaturated amines
08/08/1990EP0381070A1 Synthetic amphiphilic glycoconjugates for neurological use
08/08/1990CN1009072B Process for the destruction of by-product tetranitromethane
08/02/1990CA2009008A1 Process for the preparation of substituted cyclopropanecarbaldehydes
07/1990
07/31/1990US4945100 Process for the preparation of 1-triazolylethyl ether derivatives
07/25/1990CN1044093A Method of preparing 2-bromo-4.6-dinitro-chlorbenzene
07/24/1990US4943666 Nitrogenation, purity
07/24/1990US4943384 Cyclohexane derivatives
07/24/1990US4943358 Diphenyl methanes to benzoquinones, hydrogen bromide and hydrogen peroxide
07/24/1990US4943310 Cyclohexenecarboxylic acid derivatives as plant growth regulants
07/17/1990CA1271778A1 Process for the preparation of fluorooxy-halo compound
07/12/1990WO1990007488A1 Method of obtaining 2-bromine-4,6-dinitrochlorobenzene
07/12/1990WO1990007480A1 Acid catalyzed process
07/12/1990WO1990007479A1 Method of obtaining bromated aromatic and heterocyclic combinations containing acceptor groups
07/03/1990US4939170 Substituted aminophenyl carbamates
06/1990
06/26/1990US4937374 Useful as fungicides
06/26/1990US4937372 Substituted crotonates and fungicides containing them
06/26/1990CA1270848A1 Phosphorus acid catalyzed phenol esterification
06/26/1990CA1270832A1 Diphenyl ether herbicides
06/20/1990EP0373966A2 Manufacture of organic nitro compounds
06/20/1990EP0373759A1 Compound, composition, process and use
06/19/1990US4935557 Conitration of mixed aromatic hydrocarbons
06/13/1990EP0372313A2 Sulfonated phenyl phosphine-containing complexes
06/13/1990EP0372262A1 Method for the destillative processing of mixtures containing side chain chlorinated alkylaromatics
06/12/1990US4933505 Method of preparing stereospecific nitroaldols
06/12/1990US4933001 Phenylalkenylcarboxylic acids and their esters
1 ... 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 ... 58