Patents
Patents for C07B 43 - Formation or introduction of functional groups containing nitrogen (1,809)
10/1985
10/09/1985EP0157738A1 Process for the preparation of nitroxyls of sterically hindered amines
08/1985
08/21/1985EP0152310A1 Process for the preparation of trifluoromethyl anilines
08/20/1985US4536577 Process for preparing 2-alkyl-4-amino-5-aminomethylpyrimidine
07/1985
07/23/1985US4530796 Process for the preparation of isocyanates through the thermal cleavage of urethanes
07/10/1985EP0147798A2 Nitration reactions with acid anhydride promoters
06/1985
06/26/1985EP0146508A2 Promoted nickel and/or cobalt catalyst, its use and process performed in its presence
06/05/1985EP0143320A2 Method for the preparation of isocyanates by thermal decomposition of urethanes
05/1985
05/21/1985US4518811 Reactor for nitration of hydrocarbons in the gaseous phase under pressure
04/1985
04/10/1985EP0136851A2 Chemical process involving ethers and amines
03/1985
03/19/1985US4505879 Reactor for nitration of hydrocarbons in the gaseous phase under pressure
01/1985
01/29/1985US4496783 Nitration of organic compounds and organic nitrogen compounds produced
01/09/1985EP0130875A1 Process for the halogenation-nitration fluorination of aromatic compounds
01/08/1985CA1180660A1 Immunoglobulin conjugates
12/1984
12/05/1984EP0127342A2 Process for acylation with novel acylating agent
12/05/1984EP0127114A1 Process for the cleavage of phthalimides
12/04/1984CA1178946A1 .beta.-LACTAM ANTIBIOTICS, PROCESSES FOR THEIR PREPARATION AND AGENTS CONTAINING THEM
11/1984
11/21/1984EP0125542A1 Process for preparing hydrochlorides
11/20/1984US4483757 Alkylation of ammonia, primary, or secondary amine with olefins in presence of actinic light and ammonium halide catalyst
11/14/1984EP0124780A1 Process for preparing 2-alkyl-4-amino-5-aminomethylpyrimidine
11/13/1984US4482438 Method of performing a chemical reaction
11/06/1984CA1177462A1 Process and catalysts for vapor phase nitration of aromatic compounds
08/1984
08/28/1984CA1173439A1 Process for the dealkylation of tertiary amines by using a-chlorinated chloroformates
06/1984
06/12/1984CA1169085A1 Process for preparing substituted formamides
05/1984
05/29/1984CA1168235A1 Process for n-alkylating nitrogen-containing organic compounds
05/09/1984EP0108034A2 Deacylation of amides
04/1984
04/04/1984EP0104601A1 Method for producing tertiary amines from highly hindered aromatic secondary amines and carbonates
03/1984
03/14/1984EP0102762A2 Method of performing a chemical reaction
01/1984
01/17/1984CA1160430A1 Method of removing heat from exothermic chemical reactions
12/1983
12/20/1983US4421932 Manufacture of quaternary ammonium compounds
11/1983
11/22/1983US4417048 N-alkylation of organonitrogen compounds
11/22/1983US4416880 β-Lactam antibiotics and compositions containing the same
11/15/1983US4415744 Using a catalytic adduct of an oxide of aluminum or silicon or both and sulfur trioxide selectivity
10/1983
10/04/1983US4407729 Catalysts
09/1983
09/20/1983US4405784 Strontium hydrogen phosphate as acid catalyst for cyclization of hydroxyethylpiperazine, aminoethylpiperazine or ethanolamine
07/1983
07/20/1983EP0083791A2 Shaped articles containing silica, processes for their preparation and their use
05/1983
05/04/1983EP0078247A2 Process and catalysts for vapor phase nitration of aromatic compounds
04/1983
04/19/1983CA1144943A1 Method for removing nitrosation agent(s) from nitrated aromatic compounds
04/05/1983CA1144155A1 Process for removing an allylic group from allylic esters, carbonates and carbamates
03/1983
03/30/1983EP0075065A2 Process for the preparation of quaternary ammonium compounds
01/1983
01/18/1983US4369322 Process for the production of substituted acetonitriles
01/05/1983EP0068057A2 Nitration reactor for hydrocarbons in the gas phase
12/1982
12/28/1982CA1138439A1 Process for the preparation of carboxylic acid amides and peptides
11/1982
11/17/1982EP0013663B1 Process for removing an allylic group from allylic esters, carbonates and carbamates
10/1982
10/05/1982CA1133015A1 Preparation of amines
09/1982
09/15/1982EP0060171A1 Process for the N-alkylation of organic nitrogen compounds
07/1982
07/21/1982EP0056322A1 Immunoglobulin conjugates
07/06/1982US4338473 Method for removing nitrosation agent(s) from a nitrated aromatic compound
05/1982
05/25/1982US4331592 Process for the preparation of carboxylic acid amides and peptides
04/1982
04/14/1982EP0049448A2 Beta-lactam antibiotics, process for their preparation and compositions containing them
03/1982
03/30/1982CA1120877A1 Selective n-acetylisation of amino acids by conversion with ketenes in aqueous solution
03/09/1982CA1119618A1 Process for preparing nitroparaffins by nitration in a gaseous phase
03/02/1982CA1119197A1 Substituted amino-aromatic acetylenes and their method of preparation
02/1982
02/23/1982CA1118746A1 Catalyst for dehydrogenating organic compounds, in particular amines, thiols, and alcohols, and a process for its preparation
02/09/1982US4314942 Deprotection of allylic esters, carbonates and carbamates catalyzed by palladium compounds
02/03/1982EP0045234A1 Dealkylation process for tertiary amines by the use of alpha-chlorinated chloroformiates
01/1982
01/27/1982EP0044629A1 Process for preparing substituted formamides
01/12/1982US4310500 Nitration or waste gases
12/1981
12/08/1981US4304937 Aldehyde, amine, oxygen, platinum or palladium
11/1981
11/04/1981EP0038987A1 Process for preparing acyl cyanides
08/1981
08/26/1981EP0034366A2 Process for the preparation of steroid 20-carbamate compounds
07/1981
07/28/1981US4281193 Process for preparing substituted formamides
05/1981
05/06/1981EP0028203A1 Process for carrying off the reaction heat from exothermal chemical reactions and apparatus for carrying out the process
04/1981
04/07/1981US4260838 Process of making nitroparaffins by nitration in the gaseous phase
02/1981
02/17/1981US4251450 Nitrogen transhalogenation process
02/03/1981US4249003 Using cyclic alkylene sulfates
02/03/1981US4249002 Polycyclic amines and intermediates therefor
12/1980
12/23/1980CA1092125A1 Process for preparing amino-phenyl-ureas and amino- carbanylates
12/23/1980CA1092124A1 Process for the preparation of aromatic amines
11/1980
11/26/1980EP0019281A2 Process for the removal of nitrozation agents from nitrated aromatic compounds
10/1980
10/15/1980EP0017559A1 A gas-phase hydrocarbon nitration pressure reactor
10/07/1980US4226766 Alkyl polyphosphate, 2-amino-/2-hydroxyethyl/ketenimine of benzophenone
09/1980
09/23/1980US4224190 Indium dispersed in a carrier
09/16/1980CA1085824A1 Polycyclic amines and novel intermediates therefor
09/03/1980EP0014834A1 Process for the preparation of carbon amides and of peptides
07/1980
07/23/1980EP0013663A1 Process for removing an allylic group from allylic esters, carbonates and carbamates
05/1980
05/06/1980US4201715 Reacting a cycloaliphatic, aromatic or heterocyclic ester with magnesium dianilide and/or aluminum trianilide in the presence of aniline
04/1980
04/29/1980US4200743 Preparation of 1-cyano-2,1,3-benzothiadiazinones
04/16/1980EP0009794A1 Process for the preparation of nitro acetanilides
03/1980
03/05/1980EP0008368A1 Method for preparing cyano compounds
02/1980
02/19/1980US4189580 From a carboxylic acid and cyanogen chloride or bromide
01/1980
01/08/1980US4182915 Preparation of substituted aromatic compounds
12/1979
12/18/1979US4179469 Preparation of amines
11/1979
11/13/1979CA1066308A1 Selective nitration of aromatic and substituted aromatic compositions
11/13/1979CA1066295A1 Process for making nitrated aromatic compounds
11/06/1979CA1065850A1 Acylation process for the preparation of phenolic n-disubstituted carbamate esters, and ion pair solutions for use in the process
10/1979
10/17/1979EP0004812A2 Process for the production of nitroparaffins by nitration in the gas phase
08/1979
08/07/1979CA1060044A1 PROCESS FOR PREPARING .gamma.-AMINO-ACID AMIDE
07/1979
07/25/1979EP0003105A1 Process for the anilidation of carboxylic acid esters
07/17/1979CA1058614A1 Process for the production of nitro derivatives of aromatic compounds
07/10/1979CA1058213A1 Method for the preparation of aminoacids
05/1979
05/22/1979US4156065 1-oxide, 1-sulfide, or 1-hydrocarbylimino derivative of a phospholene, phospholane, or phosphetane
04/1979
04/04/1979EP0001251A1 Process for preparing substituted ureas
02/1979
02/13/1979US4139561 Novel substituted amino-aromatic acetylenes and their method of preparation
04/1978
04/04/1978US4082779 Acylation process for the preparation of steroid phenolic n-disubstituted carbamate esters, and ion pair solution for use in the process
03/1978
03/28/1978US4081461 Acylation process for the preparation of phenolic N-disubstituted carbamate esters, and ion pair solution for use in the process
01/1978
01/03/1978CA1023743A1 Preparation process for hydrazine compounds
07/1977
07/19/1977US4036838 Process for the production of nitro derivatives of aromatic compounds
05/1977
05/03/1977US4021498 Adiabatic process for nitration of nitratable aromatic compounds
01/1977
01/25/1977US4005102 Process for making 4-nitro-n-methylphthalimide
12/1976
12/28/1976US4000135 Iron tetraazannulenes as catalysts
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