Patents
Patents for C07B 43 - Formation or introduction of functional groups containing nitrogen (1,809)
11/1996
11/21/1996CA2217709A1 Process for the preparation of substituted aromatic amino compounds
11/13/1996EP0742189A1 Method and apparatus for producing an organo-nitrogen compound
11/05/1996US5571928 4-amino-3-hydroxy-phthalimidine, and a process for the preparation thereof
10/1996
10/30/1996EP0739870A1 Process for the condensation of hydrogen cyanide with an aldehyde
10/23/1996CN1134121A Catalyst based on Fe, Co, Bi and Mo oxides
10/08/1996US5563309 Ferrocenyl diphosphines as ligands for homogeneous catalysts
09/1996
09/19/1996WO1996028250A1 Titanium catalyst, organotitanium reaction reagent, processes for producing these, and method of reaction using these
09/04/1996EP0730007A2 Cyanation of systems containing double bonds
08/1996
08/28/1996EP0728744A2 Process for the preparation of carboxylic acids of nitrogen-containing heterocycles
08/08/1996WO1996024061A1 Methods and apparatus for synthesizing labeled combinatorial chemical libraries
08/08/1996CA2186943A1 Methods and apparatus for synthesizing labeled combinatorial chemical libraries
08/07/1996EP0724569A1 Process for the preparation of an oxirane, aziridine or cyclopropane
07/1996
07/24/1996CN1127248A A process for the preparation of aromatic polyisocyanate compounds in the gaseous phase
07/16/1996US5536816 Process for producing amides using catalytic amounts of an N-hydroxy compound
07/11/1996DE19520002C1 Nitriding organic material in wide pH range
07/10/1996EP0720512A1 CATALYST BASED ON Fe, Co, Bi AND Mo OXIDES
07/04/1996WO1996020233A1 Process for preparation of epoxy compounds
07/04/1996WO1996020232A1 Process for preparation of allyl ether, thioether and amine compounds
06/1996
06/18/1996US5527675 Method for degradation and sequencing of polymers which sequentially eliminate terminal residues
06/12/1996EP0716061A1 Process for reductive deoxygenation by means of a redox catalyst
05/1996
05/23/1996DE19542245A1 Phosgenating process
05/07/1996CA1338314C Ligand-accelerated catalytic asymmetric dihydroxylation
05/01/1996EP0708751A1 Synthesis of combinatorial arrays of organic compounds through the use of multiple component combinatorial array syntheses
04/1996
04/25/1996WO1996011915A1 Process for preparing acid amides
04/17/1996EP0558656B1 New methods for the catalytic reduction of organic substrates
04/16/1996US5507973 Highly reactive zerovalent metals from metal cyanides
04/10/1996EP0688316A4 Coupling method using selective amination of maleimide
04/02/1996US5504246 Endcapping the carboxylation with halogen compound oxidizing agent in presence of a hindered nitroxide catalyst
03/1996
03/27/1996CN1119185A 4-amino-3-hydroxy-phthalimidine, and a process for the preparation thereof
03/14/1996WO1996007647A1 Substituted pyrimidine(thi)ones
03/07/1996DE4431218A1 Substituierte Pyrimidin(thi)one Substituted pyrimidine (thi) ones
03/06/1996EP0699657A1 Process for the preparation of aromatic polyisocyanate compounds in gas phase
02/1996
02/27/1996CA1338089C Sulfonic acid esters
02/13/1996US5491233 Using enantiomerically enriched chiral metal catalyst, acidic rate enhancing additive
02/13/1996US5490952 Highly reactive form of copper and reagents thereof
02/13/1996US5490951 Zerovalent copper species capable of reacting with allylic halide or acetate to form allylic organocuprate; for synthesis of highly functional compounds
02/07/1996EP0695739A1 Process for the preparation of nitro-substituted arylamides and arylamines
02/06/1996US5489682 Catalytic asymmetric reduction of enamines
02/03/1996CA2154963A1 Process for the preparation of nitro-substituted arylamides and arylamines
01/1996
01/31/1996EP0694533A1 4-Amino-3-hydroxy-phthalimidine, and a process for preparing it
01/27/1996CA2154427A1 4-amino-3-hydroxy-phthalimidine, and a process for the preparation thereof
01/11/1996WO1996000708A1 Method for preparing alkylating agents and their use for alkylating cyclic ureas
01/11/1996CA2190469A1 Method for preparing alkylating agents and their use for alkylating cyclic ureas
01/10/1996EP0691331A1 Process for the preparation of n-acylated 2-chloro-5-aminomethyl-pyridines
01/04/1996WO1996000216A1 Improved chichibabin aminations of pyridine bases
01/04/1996CA2193236A1 Improved chichibabin aminations of pyridine bases
01/02/1996CA1337869C Transvinylation reaction
12/1995
12/27/1995EP0688316A1 Coupling method using selective amination of maleimide
12/07/1995WO1995032941A1 Process for the preparation of unsaturated amino compounds
12/07/1995CA2187922A1 Process for the preparation of unsaturated amino compounds
11/1995
11/08/1995CN1111237A Preparation of amides and peptides
10/1995
10/31/1995US5463097 Enantioselective hydrogenation catalysts
10/31/1995CA1337490C Process for the production of aminomalonic acid dinitrile salts
10/11/1995EP0676236A1 Process for removal of allyl group or allyloxycarbonyl group
10/11/1995CN1029957C Preparation of amides
10/04/1995EP0675101A1 Transesterification and other conversion reactions of acid derivatives with an amidine base
10/03/1995US5454964 Heating, pressurizing the reaction of an enophile with an ene and maintaining constant until 80% ene reactant converted
09/1995
09/27/1995EP0395729B1 Ligand-accelerated catalytic asymmetric dihydroxylation
09/27/1995CN1109057A 咪唑并哒嗪 Imidazopyridazine
09/20/1995EP0671928A1 Synthesis of n-substituted oligomers
09/13/1995CN1108231A High temp. resistant unsaturated compound and its prepn. method
09/12/1995US5449808 Method for converting amides to nitriles and nitriles to amides
08/1995
08/15/1995US5442119 Catalytic asymmetric reduction of trisubstituted olefins
07/1995
07/13/1995WO1995018781A1 Methods for synthesizing oligomers containing hydroxy acid units
07/13/1995WO1995018623A1 Oligomeric compounds having nitrogen-containing linkages
07/13/1995CA2181082A1 Oligomeric compounds having nitrogen-containing linkages
06/1995
06/21/1995EP0658532A1 Ligand-accelerated catalytic asymmetric dihydroxylation
06/14/1995EP0657454A1 Imidazopyridazines being angiotensin II antagonists
05/1995
05/31/1995CN1028636C Preparation of pest and mite killing agent
05/24/1995CA2136288A1 Imidazopyridazines
05/17/1995CN1102639A Preparation of C3-C5 alpha, beta-monoethylenically unsaturated aldehydes, carboxylic acids, or nitriles
05/16/1995US5416188 Crosslinking agents for polyesters
05/02/1995US5412082 Conversion of amines to hydroxylamines
04/1995
04/27/1995WO1995011230A1 Process for the preparation of an oxirane, aziridine or cyclopropane
04/25/1995US5410082 Reacting amides in aqueous-alkaline solutions with halogens or hypohalites in the presence of alcohols; conversion by hydrolysis, hydrogenation or reduction
04/20/1995DE4334790A1 Process for the preparation of trans-trans-4,4'-diaminodicyclohexylmethane
04/14/1995CA2117928A1 Process for preparing trans-trans-4,4'-diamino-dicylcohexy lmethane
03/1995
03/30/1995WO1995008391A1 CATALYST BASED ON Fe, Co, Bi AND Mo OXIDES
03/30/1995CA2172259A1 Catalyst based on oxides of fe, co, bi and mo
02/1995
02/22/1995EP0639607A2 Method and apparatus for degradation and sequencing of polymers which sequentially eliminate terminal residues
02/07/1995US5387696 Reductive amination of an amino acid or of an amino acid derivative with an α-keto acid or an α-keto acid derivative
01/1995
01/31/1995US5386057 Process for the preparation of acyl isocyanates
01/26/1995WO1995002567A1 Catalytic asymmetric reduction of trisubstituted olefins and enamines
01/26/1995WO1995002566A1 Synthesis of combinatorial arrays of organic compounds through the use of multiple component combinatorial array syntheses
01/26/1995CA2167391A1 Synthesis of combinatorial arrays of organic compounds through the use of multiple component combinatorial array syntheses
12/1994
12/20/1994CA1333608C Hydrogenation of halonitroaromatic compounds
12/15/1994DE4231529A1 Process for the preparation of heteroalicyclic N-nitro compounds
12/14/1994EP0628542A1 Process for the preparation of organic carbonates
12/14/1994EP0628536A2 Process for the preparation of amines
12/08/1994CA2125074A1 Process for preparing organic carbamates
12/07/1994EP0627422A2 Process for the preparation of carboxamides of nitrogen-containing aromatic heterocycles, as well as their use
12/06/1994US5371256 With rhodium and iridium
11/1994
11/17/1994DE4315623A1 Process for the preparation of amines
11/16/1994CN1095073A Substituted acylating agents
11/12/1994CA2123240A1 Process for preparing amines
11/09/1994EP0623631A2 Substituted acylating agents
11/05/1994CA2122791A1 Substituted acylating agents
11/02/1994EP0523089B1 Use of hydrophobised hydrotalcites as catalysts for ethoxylation or propoxylation
10/1994
10/11/1994CA1332421C Process for the selective n-acylation of aminohydroxamic acid derivatives and starting materials used therein
09/1994
09/28/1994CN1092754A Process for nitrating aromatic compound
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