Patents
Patents for C07B 37 - Reactions without formation or introduction of functional groups containing hetero atoms, involving either the formation of a carbon-to-carbon bond between two carbon atoms not directly linked already or the disconnection of two directly linked carbon atoms (2,877)
09/1999
09/02/1999DE19809166A1 Enhancement of catalytic activity and selectivity of carbon-carbon bonding reactions in water or multiphase system
09/01/1999EP0938459A1 Process for preparing aromatic olefins by using palladaphosphacyclobutanes as catalysts
08/1999
08/26/1999WO1999042424A1 Method for preparing aromatic ketone compounds
08/25/1999EP0937014A1 Process for the perfluoroalkylation of substances having terminal unsaturation
08/17/1999US5939268 Diels-alder reaction product of a diene and a dienophile; chemical intermediates for drugs, solid phase synthesis
08/12/1999WO1999040047A1 Methods for preparing macrocyclic products by ring-closing diine metathesis
08/12/1999DE19804673A1 Verfahren zur Darstellung makrocyclischer Produkte durch ringschliessende Diin-Metathese Process for the preparation of macrocyclic products by ring-closing metathesis Deen
08/12/1999CA2325370A1 Methods for preparing macrocyclic products by ring-closing diine metathesis
08/11/1999EP0934236A1 Process for the preparation of substituted aromatic compounds
08/11/1999CN1225361A Process for the prepn. of N, N'-subistituted ureas
08/05/1999WO1999038820A1 The use of compressed co2 in chemical reactions
07/1999
07/28/1999CN1224019A Process for manufacture of bis (phosphine oxide)- and bis (phosphonate) -compounds
07/22/1999WO1999036375A1 Asymmetric cycloaddition reactions
07/21/1999EP0929501A1 Alkylation and acylation reactions
07/21/1999EP0749406B1 Process for the preparation of optically active cycloolefins
07/14/1999CN1222505A Process for alkylation of alkyl- or benzylcyanogen derivatives in presence of trialkylamines or -phosphines
07/08/1999DE19757563A1 Free-flowing catalyst system for olefin polymerisation
07/07/1999EP0927147A1 Alkylation of organic aromatic compounds using beta zeolite catalyst
07/06/1999US5919995 Use of composite catalyst for the dismutation and/or transalkylation of alkylaromatic hydrocarbons
07/06/1999US5919930 Process for cross-coupling aromatic boron compounds with aromatic halogen compounds or perfluoroalkylsulfonates
06/1999
06/30/1999EP0926152A1 Process for the manufacture of bis(phosphine oxide)-and bis(phosphonate)-compounds
06/30/1999EP0925271A1 Process for the preparation of derivatives of fatty acids
06/30/1999CN1043889C Process for the preparation of substituted benzenes and benzene sulfonic acid and derivatives thereof
06/23/1999EP0924196A1 Process for the alkylation of alkyl- or benzonitrile in the presence of trialkyl amines or phosphines
06/23/1999EP0923525A1 Process for preparation of branched fatty acids
06/15/1999US5911966 High surface area alumina solid
06/02/1999CN1218455A Improved process for producing ionones, especially 'beta'-ionones
06/01/1999US5908966 Telomerizing a starting polyfluoroalkyl iodide with a terminally unsaturated perfluoro olefin or monochlorofluoro olefin.
06/01/1999US5908957 Nitrogen monoxide catalyzed isomerization of a z-isomer of a vitamin a compound or of a mixture of several of such isomers into a mixture of the corresponding all-e- and 13-z-isomers of this vitamin a compound.
06/01/1999US5908945 Copper compound and silyl reagent as catalysts
06/01/1999US5908944 Copper compound catalyst
05/1999
05/19/1999EP0915997A1 Process for preparing solvent-stabilised metal colloids and substrate-immobilised metal clusters
05/19/1999EP0915814A1 Method for grafting a substituted difluoromethyle group
05/19/1999CN1216941A Use of alkaline earth metal contg. small pare non-zeolitic molecular sieve catalysts in oxygenate conversion
05/05/1999CN1215723A Process for manufacture of carotenoids
05/04/1999US5900519 Catalytic process for the selective alkylation of polycyclic aromatic compounds
05/04/1999CA2143404C Process for removal of heteroatoms under reducing conditions in supercritical water
04/1999
04/28/1999EP0910560A1 Process for preparing 2-aryl-substituted indenes
04/22/1999WO1999019284A1 Thermal process for the preparation of a telomeric alkyl iodide
04/22/1999WO1999019275A1 Process for electrophilic aromatic substitution
04/22/1999CA2304755A1 Thermal process for the preparation of a telomeric alkyl iodide
04/20/1999US5895816 Reactimg amines and aliphatic aldehydes on fixed bed catalyst, in presence of free pressurized hydrogen, by mixing reactants (only one of which has been preheated) in reactor, for use of comercially available aqueous formaldehyde solution
04/14/1999EP0908449A1 Preparation of carotenoids
04/14/1999EP0908232A1 Sulfated zirconia containing acid catalyst and use thereof
04/14/1999CN1042929C Improved process for alkylation of aromatics with linear olefins derived from linear paraffin dehydrogenation step
04/13/1999CA2045553C Process for the preparation of vinyl ethers
04/07/1999CN1213359A Process for preparing nitrobiphenylene
04/06/1999US5892124 Process for dienoic condensation known as the diels-alder reaction
04/03/1999CA2248450A1 Manufacture of carotenoids
04/01/1999WO1999015239A1 Method for reductive dehalogenation of halogen-organic substances
04/01/1999DE19742297A1 Verfahren zur reduktiven Dehalogenierung von halogenorganischen Stoffen Method for the reductive dehalogenation of halogenated organic substances
04/01/1999CA2304802A1 Method for reductive dehalogenation of halogen-organic substances
03/1999
03/30/1999US5888355 Hydrogenation, isomerization catalyst
03/23/1999US5886240 Process for preparing aromatic acetylenes using palladacycles as catalysts
03/23/1999US5886234 Process for producing cyclic unsaturated aldehydes
03/23/1999US5886196 Method of catalyzing condensation reactions
03/17/1999EP0901467A1 IMPROVED PROCESS FOR PRODUCING IONONES, ESPECIALLY $g(b)-IONONES
03/17/1999EP0901453A1 Method for organic reactions
03/02/1999US5877312 Method for preparing alkylating agents for their use for alkylating cyclic ureas
02/1999
02/09/1999US5869021 Rare earth--ZSM-5/ZSM-11 cocrystalline zeolite
02/04/1999WO1999004861A1 Method for eliminating halogenated and non halogenated waste
01/1999
01/27/1999EP0893430A2 Process for the preparation of alkylamines
01/27/1999CN1206000A The preparation of alkylamines
01/20/1999EP0891948A1 Aluminium oxide containing solid of high specific surface
01/20/1999EP0891227A1 Use of alkaline earth metal containing small pore non-zeolitic molecular sieve catalysts in oxygenate conversion
01/13/1999EP0890176A1 Proton conductor in liquid form
01/13/1999EP0889867A1 Process for the manufacture of fluorine-substituted hydrocarbons
01/13/1999EP0889863A2 Surface modified carbonate materials
01/12/1999US5859302 Processes employing reusable aluminum catalysts
01/07/1999WO1999000535A1 Method for preparing 2-aryl or 2-heterocyclyl chiral propionic acids and their esters
01/07/1999EP0888261A1 Process for preparing nitrobiphenylene
01/05/1999US5856539 Using zeolite catalyst
12/1998
12/30/1998WO1998058935A1 Alkene borates and a process for covalently coupling organic compounds
12/30/1998CN1041399C Crystalline aluminium silicate zeolite containing rare-earth
12/30/1998CA2295251A1 Alkene borates and a process for covalently coupling organic compounds
12/22/1998US5852200 Cross-coupling of organic compounds using cuprous iodide
12/22/1998US5852194 N-substituted cis-n-propenyl-acetamides, and process for their preparation
12/16/1998EP0883587A1 Tamoxifen and analogues thereof
12/16/1998CN1201787A Isomerization process
12/03/1998WO1998054229A1 Use of ylides of phosphorus as slightly nuceophilic strong bases
12/03/1998CA2291345A1 Use of ylides of phosphorus as slightly nuceophilic strong bases
12/02/1998EP0881235A1 Phosphorus ylides, their preparation and use thereof as low-nucleophilic strong-basic compounds
11/1998
11/19/1998DE19720798A1 Preparation of cyclic or polymeric compounds by selective olefin metathesis of poly:unsaturated substrate
11/19/1998DE19713546A1 Free-flowing catalyst system for olefin polymerisation
11/11/1998CN1198435A Method for producing fluorescent whitening agent
11/05/1998WO1998049128A1 Process for preparing a (hetero)aromatic olefin
10/1998
10/29/1998WO1998047891A1 Selective olefin metathesis of bifunctional or polyfunctional substrates in compressed carbon dioxide as reaction medium
10/28/1998EP0873989A2 Process for the preparation of distyryl-biphenyl compounds
10/28/1998EP0873988A2 Process for the preparation of distyryl-biphenyl compounds
10/28/1998EP0873981A1 Process for the prevention of decomposition of gaseous acetylene
10/28/1998EP0873788A2 An azo compound as a catalyst for formation of a carbon-carbon bond and a method for the formation of such a bond
10/28/1998CN1197065A Process for production of distyryl-biphenyl fluorescent whitening agents
10/24/1998CA2235524A1 A catalyst for formation of a carbon-carbon bond and a method for formation of a carbon-carbon bond
10/22/1998WO1998046547A1 Process for preparing 2-aryl-substituted indenes
10/22/1998WO1998046353A1 Synthesis and application of vapor grafted porous materials
10/22/1998DE19716231A1 Olefin metathesis in compressed carbon di:oxide
10/22/1998CA2258747A1 Process for preparing 2-aryl-substituted indenes
10/21/1998EP0871621A1 Asymmetric synthesis catalyzed by transition metal complexes with new chiral ligands
10/15/1998WO1998045265A1 Process for covalently coupling organic compounds utilizing diboron derivatives
10/15/1998CA2285455A1 Process for covalently coupling organic compounds utilizing diboron derivatives
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