Patents
Patents for C07C 269 - Preparation of derivatives of carbamic acid, i.e. compounds containing any of the groups the nitrogen atom not being part of nitro or nitroso groups (4,512)
01/1991
01/30/1991EP0410684A2 Method of condensing N-phenylcarbamates
01/30/1991EP0410240A2 Process for the preparation of polyurea-polyurethane elastomers and elastomers obtained by said process
01/30/1991EP0410214A1 Process for the preparation of N,N-disubstituted Mono- and Oligourethanes
01/30/1991EP0410169A2 Process for the preparation of asymmetrically substituted ureas, carbamates, thiocarbamates and substituted isocyanates
01/29/1991CA2020500A1 Process for the preparation of polyurea-polyurethane elastomers
01/28/1991CA2022052A1 Method of condensing n-phenyl carbamates
01/26/1991CA2020692A1 Process for the preparation of mono- and oligourethanes
01/22/1991US4987248 Acid catalyzed formation of carbamates from olefins
01/22/1991US4987130 Substituted amine derivatives, their production and use
01/15/1991US4985587 Reaction products of p-vinylphenol and polyisocyanates
01/09/1991CN1048392A Processes for preparing high-hard resin and polymerizable monomer
01/02/1991EP0406129A1 Method for the preparation of methylene di(phenylurethane)
01/01/1991US4981992 Hydrogenation, ruthenium complex catalyst
12/1990
12/30/1990CA2020099A1 Process for the preparation of methylenedi (phenylurethane)
12/30/1990CA2020098A1 Process for the preparation of methylenedi(phenylurethane)
12/27/1990EP0404720A2 Pesticidal agent
12/27/1990CA1278307C Process for preparing carbamic acid derivatives
12/25/1990US4980497 Give resins having high transparency, surface hardness, and heat resistance; glazing materials, optical lenses and disc substrates
12/21/1990CA2019250A1 Pesticidal composition
12/18/1990US4978759 Reacting meldrum*s acid with protected amino acid, cyclization decyclizing, reduction and deprotecting; statine
12/11/1990CA1277674C Highly functional fluorinated polyisocyanates and varnishes obtained therefrom
12/05/1990EP0400383A1 Urea groups containing (meth)-acrylic acid derivativs from triisocyanates and their use
12/05/1990EP0400299A1 A method of manufacturing aromatic urethanes
11/1990
11/30/1990CA2012624A1 A method of manufacturing aromatic urethanes
11/22/1990EP0398072A2 Amino-acid amides
11/13/1990US4970306 Trans-cyclohexane-1,4-diisocyanate which is completely or partially blocked with epsilon-caprolactam: and the manufacture and use of the same
11/13/1990CA1276167C Process for the preparation of urethanes
11/13/1990CA1276166C Carbonylation process
11/13/1990CA1276164C Urethanes which contain perfluoroalkyl groups, epichlorohydrin groups and dialcohol radicals, the preparation and use thereof
11/07/1990EP0396526A2 Method of preparing chiral beta-amino acids
11/07/1990CN1010309B Process for preparing fluorinated acrylic monomers polymers
11/01/1990CA2015761A1 Method of preparing chiral .beta.-amino acids
10/1990
10/31/1990EP0395578A2 Acylated carbamic acid esters
10/31/1990EP0395122A2 Electrodeposition paints with a base of aminourethanes
10/24/1990EP0393789A1 A process for the preparation of carbamates
10/24/1990CA2015004A1 Acylated carbamates
10/23/1990US4965372 Process and intermediates for isopropyl 3S-amino-2R-hydroxy-alkanoates
10/10/1990EP0391473A1 Process for producing carbamates
10/10/1990EP0210896B1 Optically pure derivates of 4-amino-3-hydroxycarboxylic acids and process for stereospecific synthesis
10/02/1990US4960881 α-chlorinated carbonates, their method of manufacture and application in the protection of the amine functions of amino acids
09/1990
09/26/1990CN1045579A Process for preparing carbamates, and intermediates therein
09/19/1990EP0387946A1 Process for preparing carbamates and intermediates therein
09/19/1990EP0254185B1 (Meth)acrylic acid derivatives of tricyclo[5.2.1.02.6]decanes containing urethane groups
09/13/1990CA2011856A1 Process for preparing carbamates, and intermediates therein
09/12/1990EP0387196A1 Complexes with optically active ligands, process for their preparation and their use
09/11/1990CA1273953A1 Derivatives of 1,1,2,2-tetramethyl-1,2-bis-(2-fluoro- 4-hydroxy-phenyl) ethane
09/08/1990CA2011584A1 Complexes having optically active ligands, a process for their preparation and their use
08/1990
08/28/1990US4952632 Trans-cyclohexane-1,4-diisocyanate which is completely or partially blocked with epsilon-caprolactam; and the manufacture and use of the same
08/28/1990US4952614 (Meth)acrylic acid derivatives, containing urethane groups, of tricyclo[5.2.1.02.6 ]decanes
08/28/1990US4952241 Dentistry
08/28/1990CA1273346A1 Optically pure 4-amino-3-hydroxycarboxylic acid derivatives and process for their stereospecific synthesis
08/14/1990US4948913 Renin inhibitors containing 5-amino-2,5-disubstituted-4-hydroxypentanoic acid residues
08/01/1990EP0380146A2 Process for the preparation of N-omega-hydroxyalkyl, N-omega-hydroxy-oxa-alkyl and N-omega-hydroxy-polyoxa-alkyl carbamates
07/1990
07/25/1990EP0379288A1 Process and intermediates for isopropyl 3S-amino-2R-hydroxyalkanoates
07/19/1990CA2007906A1 Process and intermediates for isopropyl 3s-amino-2r-hydroxy-alkanoates
07/17/1990CA1271776A1 Diisocyanates containing urethane groups, a process for their preparation and their use as binders or binder component in polyurethane lacquers
06/1990
06/28/1990WO1990006914A1 N-alkylation of n-alpha-boc-protected amino acids
06/28/1990DE3843226A1 Chromatography plates and methods for thin-layer chromatographic separation of enantiomers
06/26/1990CA1270822A1 Trans-cyclohexane-1,4-diisocyanate which is completely or partially blocked with epsilon- caprolactam; and the manufacture and use of the same
06/20/1990EP0373810A1 Preparation of carbamoyl halides
06/20/1990EP0373385A1 Use of esters of (meth-)acrylates containing perfluor alkyl groups in dentistry
06/20/1990EP0373384A1 Ester of (meth-)acrylic acid containing perfluor alkyl groups, their preparation and use in dentistry
06/20/1990EP0225826B1 Fluorinated acrylic monomers, their polymers and their use as hydrophobic and oleophobic agents
06/12/1990US4933470 Method of synthesis of vicinal diamines
05/1990
05/23/1990EP0369691A2 Process for preparing optically active 3-hydroxybutanoic acid
05/15/1990US4925971 Method for producing aliphatic o-arylurethanes
05/02/1990EP0365903A1 Olefinically unsaturated compounds, method for the preparation of copolymers containing isocyanate groups, the copolymers so prepared and coating materials and sealants containing them
05/01/1990CA1268597A1 Diamino acid derivatives
04/1990
04/24/1990US4920190 Acrylic ester homo-and copolymers; oil and water resistant, for leather
04/11/1990EP0362654A1 Process for the preparation of diblocked triisocyanate compounds
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
03/21/1990EP0359519A1 A process for producing carbamic acid esters
03/21/1990CN1040581A Manufacture of polyfunctional monomers
03/13/1990US4908452 Process for preparing nitriles
03/06/1990US4906773 Process for preparing optically active threonine
02/1990
02/28/1990EP0238925B1 Process for the preparation of n,n-disubstituted mono and oligourethanes
02/13/1990US4900834 Substituted α,ω-aminoalcohol derivatives
01/1990
01/30/1990CA1265130A1 Process of selectively blocking amino groups
01/24/1990EP0351640A1 N,N-disubstituted oligo- and polyurethanes, process for their preparation and their use in preparing plastics
01/24/1990EP0351534A2 Polyfunctional monomers and process for production thereof
01/02/1990CA1264160A1 Amides, their preparation, and pharmaceuticals containing same
12/1989
12/28/1989DE3921035A1 Verfahren zur herstellung von jodalkinylcarbamaten A process for preparing jodalkinylcarbamaten
12/20/1989EP0346788A1 Radiation-sensitive ethylenically unsaturated copolymerizable compounds and process for their preparation
12/13/1989EP0218040B1 Trans-cyclohexane-1,4-diisocyanate, wholly or partly blocked by epsilon-caprolactam, its preparation and its use
11/1989
11/15/1989EP0341462A1 Diastereoselective process for the preparation of intermediates useful for the synthesis of peptide derivatives
11/14/1989US4880780 Respiratory system disorders
11/07/1989US4879402 Dentures
11/02/1989EP0339564A1 Carbamate derivatives and a process for their production
10/1989
10/24/1989US4876379 Using pyridine oxide as oxygen transfer agent
09/1989
09/26/1989US4870203 Preparation of geminal dicarbamates
09/26/1989CA1260492A1 Fluorinated acrylic monomers; polymers prepared therefrom and their use as hydrophobic and oleophobic agents
09/19/1989CA1259626A1 Carbamates of iodo substituted alkynes and fungicidal preparations thereof
09/13/1989EP0331988A1 Sulfonium compounds, as well as process for producing active esters and amides used for the production of amides
08/1989
08/30/1989EP0330591A1 Process for preparing aromatic carbamates
07/1989
07/12/1989CN1033799A Methacrylate and use thereof
06/1989
06/28/1989EP0322236A2 Catalytic process for preparing optically active threonine
06/14/1989EP0320235A2 A method for producing aliphatic O-arylurethanes
06/14/1989CN1004485B Process for meth-acrylic acid esters and their use
06/06/1989US4837332 Process for blocking amino acids with the tertiary-alkoxycarbonyl group
05/1989
05/31/1989CN1004353B Process for the production of n-methylcarbamates
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