Patents
Sitemap › C07 - Organic chemistry › C07B - General methods of organic chemistry; Apparatus therefor › C07B 43 - Formation or introduction of functional groups containing nitrogen
Patents for C07B 43 - Formation or introduction of functional groups containing nitrogen (1,809)
09/1991
09/09/1991CA2023566A1 Preparation of a n-substituted phenylenediamine
09/03/1991US5045159 Derivatives of compounds containing a carbonyl group conjugated to an aromatic moiety and electrophilic methods of fabrication thereof
08/1991
08/14/1991EP0441445A2 Preparation of amides
08/14/1991CN1053785A Preparation of amides
08/06/1991CA2034972A1 Preparation of amides
07/1991
07/24/1991EP0437788A1 Process for preparing powdered aluminium alloys
07/23/1991US5034535 Multistage reaction with chloroformate ester and isopropylamino-1,2-propanediol for cyclization, sulfonation and etherification
05/1991
05/08/1991EP0426394A1 Preparation of iminodiacetonitrile from glycolonitrile
04/1991
04/30/1991US5011995 Hydrogenation of N-Aliphatic Keimines Using A Complex Iridium Catalyst
04/27/1991CA2028502A1 Preparation of iminodiacetonitrile from glycolonitrile
04/16/1991US5008406 Hemiacetal compounds and the applications thereof
04/16/1991CA1283102C Process for the production of amides
04/09/1991CA1282787C Synthesis of aryloxypropanolamines and arylethanolamines
04/04/1991WO1990015810A3 Improved process for preparing isepamicin
04/03/1991EP0420658A2 A catalyst for asymmetric induction
03/1991
03/30/1991CA2025357A1 Catalyst for asymmetric induction
03/27/1991EP0419409A2 Iridium complexes, process for their preparation and their use
03/26/1991US5003083 Process for preparing optically active cyano compound
03/19/1991US5001224 Organic syntheses employing supercritical carbon dioxide as a reaction solvent
03/13/1991EP0416250A2 N-acylurea and O-acylisourea derivatives of hyaluronic acid
02/1991
02/26/1991US4996361 Process for the preparation of optically active secondary arylamines
02/26/1991CA1280848C2 Process for preparing amides from nitriles and amines
02/19/1991US4994615 Process for the preparation of optically active secondary arylamines
02/19/1991US4994576 Treatment with iron or zinc and dichloro- or trifluoroacetic acid
02/19/1991CA1280430C Hydrogenation and reduction using the system hydrocarbon/carbon
02/13/1991EP0412310A1 Process for producing Manganese dioxide catalyst for the hydration reaction of cyanohydrins
02/05/1991US4990644 Sulfonium compound and acylating agent
02/05/1991US4990232 Process for the preparation of carbodiimides
02/02/1991CA2022091A1 N-acylurea and o-acylisourea derivatives of hyaluronic acid
01/1991
01/30/1991EP0410280A1 Heterobifunctional compounds
01/23/1991EP0409716A2 Process for the hydrogenation of halogenated nitroaromatic derivatives in the presence of iodides
01/23/1991EP0409003A2 Derivatives of compounds containing a carbonyl group conjugated to an aromatic moiety and electrophilic methods of fabrication thereof
01/23/1991EP0408634A1 Organic synthesis employing supercritical carbon dioxide as a reaction solvent
01/02/1991EP0405820A2 Improved process for preparing isepamicin
01/01/1991US4981973 Bronsted acid, ruthenium catalyst
12/1990
12/27/1990WO1990015810A2 Improved process for preparing isepamicin
12/27/1990EP0403511A1 Hydrogenation of halonitroaromatic compounds.
12/22/1990CA2325082A1 2-formylmercaptobenzothiazole
12/19/1990CN1047855A Amination of carbonyls
12/18/1990US4978771 Conjugated dienes and unsaturated nitriles, such as acrylo-nitrile-butadiene copolymer; complex ruthenium catalyst
11/1990
11/14/1990EP0397601A1 Benzoylphenylureas
11/11/1990CA2016357A1 Benzoylphenylureas
11/07/1990EP0395729A1 Ligand-accelerated catalytic asymmetric dihydroxylation.
11/06/1990US4968843 Preparation of a N-substituted phenylenediamine
10/1990
10/31/1990EP0394968A1 Amination of carbonyls
10/25/1990CA2015251A1 Amination of carbonyls
10/24/1990EP0393350A2 Process for the preparation of amines
10/24/1990EP0190322B1 Process for the production of amino compounds from hydroxyl compounds
10/03/1990CN1009824B Process for production of n,n-disubstd. carboxylic acid amides
09/1990
09/19/1990EP0223151B1 Process for the selective hydrogenation of unsaturated compounds
09/12/1990EP0387196A1 Complexes with optically active ligands, process for their preparation and their use
09/11/1990US4956328 Catalyst for hydrogenation of nitriles, aromatic hydrocarbons, nitro compounds and/or olefins
09/08/1990CA2011584A1 Complexes having optically active ligands, a process for their preparation and their use
09/04/1990US4954634 Process for the selective N-acylation of aminohydroxamic acid derivatives and starting materials used therein
08/1990
08/22/1990EP0383132A1 Cobalt catalysts
08/08/1990CN1009072B Process for the destruction of by-product tetranitromethane
08/07/1990US4946999 Chemical intermediates, antibiotics
07/1990
07/17/1990US4942225 Transfer to active methylene group an azo or diazo group
07/17/1990US4942220 Process for preparing poly-amide from nitrile and amine with catalytic complex
07/04/1990EP0376859A1 Method for functionalization of nucleophiles
06/1990
06/28/1990WO1990006911A1 Method for functionalization of nucleophiles
06/12/1990CA2004700A1 Method for functionalization of nucleophiles
05/1990
05/29/1990US4929737 Forming aminohaloaromatic compounds
05/23/1990EP0369864A2 Process for producing aromatic amines
05/22/1990CA1269392A1 Process for preparing amides from nitriles and amines
05/01/1990US4921970 Nitration or phthalimides
04/1990
04/25/1990EP0365382A1 Aminocarbonylation process
04/24/1990US4920222 Reacting a benzophenone and an acetamide in presence of sodium tertiary alcoholate
04/17/1990US4918223 Method of preparing N-acylated mercapto-alpha-amino acids
04/17/1990US4918194 Reacting corresponding secondary amine with hydrogen peroxide, titanium-silicate catalyst
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
03/1990
03/07/1990EP0357244A2 Method for converting nitriles to amides and amides to nitriles
02/1990
02/27/1990US4904780 Process for the monoacylation of water-soluble organic amino compounds
02/26/1990EP0248879A4 Synthesis of aryloxypropanolamines and arylethanolamines.
01/1990
01/24/1990EP0351603A2 Transvinylation reaction
01/16/1990US4894478 Process of producing ketoximes
12/1989
12/20/1989EP0347136A2 Method for reducing aromatic nitro groups
12/19/1989US4888385 BOP reagent for solid phase peptide synthesis
10/1989
10/25/1989EP0339006A1 Process for preparing S-metoprolol and intermediates therefor
10/24/1989US4876376 Halogen-fluorine exchange in hydrofluoric acid without catalyst; plant safening agents
10/24/1989US4876362 Catalytic hydrogenation of thienyl-acetonitrile in basic solution
10/10/1989US4873325 Catalytic conversion of oximes with non-zeolitic molecular sieves; sapo-11 and sapo-41
10/04/1989EP0335222A1 Process for the preparation of nickel-aluminium oxide zirconium dioxide catalyst compositions
10/03/1989US4871858 Method of producing formamide compounds
09/1989
09/21/1989WO1989008659A1 Organic synthesis employing supercritical carbon dioxide as a reaction solvent
09/20/1989CN1035659A 3,3-diarylacrylic acid amides
09/13/1989EP0331988A1 Sulfonium compounds, as well as process for producing active esters and amides used for the production of amides
09/06/1989EP0331524A2 Synthesis of trichostatins
08/1989
08/23/1989EP0329256A1 Preparation of 3,3-diarylacrylic acid amides
08/22/1989CA1258667A1 Vapor phase nitration catalysts and processes for the preparation and use thereof
08/22/1989CA1258666A1 Vapor phase nitration catalysts and processes for the preparation and use thereof
08/16/1989EP0328280A1 Process for the production of nitriles and oxides
08/10/1989WO1989007096A1 Hydrogenation of halonitroaromatic compounds
08/08/1989US4855505 Promoted nickel and/or cobalt catalyst, its use, and process performed in its presence
07/1989
07/25/1989CA1257876A1 Process for the selective hydrogenation of unsaturated compounds
07/18/1989US4849537 Process for the production of nitriles
07/13/1989WO1989006225A1 Ligand-accelerated catalytic asymmetric dihydroxylation
05/1989
05/03/1989EP0314147A2 Process for the synthesis of N,N-dialkyl-Hydroxylamines
05/02/1989US4827015 Process for the production of aminomalonic acid dinitrile salts
05/02/1989US4827003 Hemiacetal compounds and the applications thereof
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