Patents
Patents for C07C 39 - Compounds having at least one hydroxy or o-metal group bound to a carbon atom of a six-membered aromatic ring (10,875)
02/2000
02/09/2000CN1049211C Separating epuration p-cresol technology by complexing extraction crystallization method
02/03/2000DE19857314A1 Stark saurer mensoporöser synergistischer Festkörper-Katalysator und Verwendung desselben Strongly acid of the same mensoporöser synergistic solid catalyst and use
02/02/2000EP0975568A1 Process for preparing bis-(4-hydroxyaryl-)-alkanes
02/02/2000EP0975421A2 Preparation of low-dust stabilisers
02/02/2000EP0975420A1 Synergistic mixtures of alkyl phenol formaldehyde resins with oxalkylated amines as asphalt dispersing agents
02/02/2000CN1243503A Process for preparing bis-(4-hydroxyaryl)-alkanes
02/01/2000US6020523 Polyorganofullerenes
02/01/2000US6020481 Fluorescent labeling reagents; dideoxy polynucleotide sequencing and fragment analysis methods.
01/2000
01/26/2000EP0973714A2 Production of racemic 2-(6-methoxy-2-naphthyl)propionic acid or precursors thereof
01/26/2000EP0973712A1 PROCESS FOR THE MANUFACTURE OF TETRABROMOBISPHENOL-A WITH CO-PRODUCTION OF n-PROPYL BROMIDE
01/26/2000EP0900189A4 2-hydroxy-5-alkyl-beta-methylstyrene and process of preparing hydroxyarylaldehydes therefrom
01/25/2000US6017499 Apparatus for contacting solids in the form of freeflowing lumps with liquids or gases
01/20/2000WO2000002839A1 Cytokine production and tyrosine kinase inhibitors
01/19/2000CN1241559A Process for production of trimethylhydroquinone diesters and of trimethylhydroquinone
01/19/2000CN1241557A Condensation processing method for desorption gas of compound containing phenol, bisphenol A and steam
01/18/2000US6015873 Polyphenol composition and method of producing the same
01/12/2000EP0970940A1 Process for the recovery of products contained in the heavy side products from their preparation
01/11/2000US6013844 Preparation of catechol monoethers and catechols
01/05/2000CN1240417A Improved method for producing phenol and acetone from cumol
01/05/2000CN1240202A Process and equipment for preparing dialkyl phenol
01/04/2000US6011184 Descaling of bisphenol-A reactor using water
12/1999
12/29/1999EP0766660B1 Cyclohexanone derivatives, method of preparing them and intermediates used in the method
12/29/1999CN1239939A Process for hydroxylation of benzene
12/28/1999US6008315 Manufacturing method for bisphenols and a manufacturing method for polycarbonate
12/23/1999DE19926044A1 New 4-Alk(en)yl- and 4-alk(en)oxy-4'-alkenyl- and -alkenoxy-tolanes used as components of liquid crystal media
12/22/1999CN1239474A Substituted pyridines and biphenyls as anti-hypercholesterinemic, anti-hyperlipoproteinemic and anti-hyperglycemic agents
12/21/1999US6005151 Reacting haloaromatic compound with olefin compound using palladium complex catalyst
12/16/1999WO1999064384A1 A process for the preparation of tetrabromobisphenol-a
12/15/1999CN1238752A Method for preparing 4-hydroxybenzaldehyde and its derivatives
12/15/1999CN1047387C Semiantigen compound, synthesizing process and use thereof
12/14/1999US6002051 As antioxidants for lubricating oils and normally liquid fuels
12/09/1999WO1999062853A1 Condensation method for a carbonyl compound on an aromatic derivative in a basic medium
12/08/1999EP0962439A1 Process and apparatus for producing dihydric phenolic compound
12/08/1999EP0801638B1 Process to produce tetrabromobisphenol with the reduced formation of alkyl bromide by-products
12/08/1999CN1237955A Substituted phenols and thiophenols useful as antioxidant agents
12/07/1999US5998677 Process for the production of phenol
12/07/1999US5998487 Anti-inflammatory and antibacterial benzyl phenol agents and their use in oral compositions
11/1999
11/30/1999US5994596 Method for preparing high purity indane bisphenols
11/24/1999EP0958861A1 Activation method of titanium silicalite and its use in oxidation processes with hydrogen peroxide
11/24/1999EP0958268A1 Spherical molecular assembly
11/24/1999CN1235952A Process for preparing phenol and acetone by cumene hydroperoxide intensified decomposition
11/24/1999CN1235949A Method for enhancing selectivity of decomposition of dicumyl peroxide to alpha-methyl styrene
11/24/1999CN1046754C Reduction process for phenol tar waste
11/24/1999CN1046699C Process for preparing bisphenol A of good heat stability
11/23/1999US5990362 Etherification of phenol with p-isopropenylphenol or 2-(4-hydroxyphenyl)-2-propanol in the presence of a catalyst, at a reaction temperature of no greater than about 65.degree. c.
11/23/1999CA2003925C Preparation of cumene through alkylation of an aromatic compound and preparation of phenol through cumene
11/18/1999WO1999058555A2 Water-soluble pro-drugs of 2,6-diisopropylphenol analogues
11/18/1999CA2331371A1 Water-soluble pro-drugs of propofol
11/16/1999US5985937 Leukotriene mediated disease in humans for enzyme inhibitors
11/11/1999WO1998004528A3 Substituted pyridines and biphenyls as anti-hypercholesterinemic, anti-hyperlipoproteinemic and anti-hyperglycemic agents
11/10/1999EP0954965A1 Controlled release compositions
11/10/1999CN1234389A Noval process for preparing 2,3,5-trimethyl-hydroquinone diester
11/10/1999CN1234178A Release-control composition
11/09/1999US5981806 Process for the preparation of hydroxynapthalenes
11/04/1999WO1999031036A3 O-derivatives of halogenated diphenyl ether compounds
10/1999
10/28/1999DE19817644A1 Neues Verfahren zur Herstellung von 2,3,5-Trimethylhydrochinondiestern New process for the preparation of 2,3,5-trimethylhydroquinone
10/27/1999EP0952137A1 Process for the preparation of 2,3,5-trimethylhydroquinone diester
10/21/1999CA2269404A1 New process for the preparation of 2,3,5-trimethylhydrochinone diesters
10/19/1999US5969196 Process for preparing 3,5-dimethylphenol
10/19/1999US5969176 Acylation of trimethylhydroquinone in the presence of protonic acid
10/19/1999US5969167 Method for making tris(hydroxyphenyl) compounds using ion exchange resins
10/14/1999WO1999051559A1 Anti-inflammatory, antibacterial benzyl phenol agents
10/14/1999WO1999051558A1 Descaling of bisphenol-a reactor using water
10/14/1999CA2327113A1 Anti-inflammatory, antibacterial benzyl phenol agents
10/13/1999EP0948479A1 Recovery of anhydrous alkanesulphonic acids
10/13/1999EP0709358B1 Novel clathrate compound, process for producing the same, and antifouling agent
10/13/1999CN1231277A Fat-soluble tea polyphenol and esterfication method productive process thereof
10/07/1999WO1999050212A1 Method for removing metal ions from cresol mixtures
10/06/1999EP0946482A1 Method for preparing a 4-hydroxybenzaldehyde and derivatives
10/05/1999US5962751 Using orthophosphoric acid
10/05/1999US5962747 Oxidizing 1,3-diisopropylbenzene; extraction; circulation
10/05/1999CA2042416C Method for the determination of an ion with increased sensitivity, use of substances which are suitable for this and a corresponding agent
09/1999
09/30/1999DE19812613A1 Neue cycloaliphatische Polymerbausteine New cycloaliphatic polymer building blocks
09/29/1999EP0945427A1 Cycloaliphatic compounds as building units for polymers
09/29/1999EP0945420A1 Process for the preparation of bisphenols
09/29/1999EP0944567A1 Improved method for producing phenol and acetone from cumol
09/29/1999CN1230166A Illudin analogs useful as antitumor agents
09/29/1999CN1229783A 2,4-dimethyl-6-s-alkylphenols
09/28/1999US5959160 Purification of p,p-bisphenolate solutions
09/28/1999US5959157 Process for making hydroxy-substituted ethynylated biphenyl compounds
09/28/1999US5959103 Naphthofluorene compounds, intermediates, compositions, and methods
09/28/1999US5958917 Benzofluorene compounds, intermediates, compositions, and methods
09/22/1999EP0942896A1 Substituted phenols and thiophenols useful as antioxidant agents
09/22/1999CN1229074A Method for obtaining bisphenol A
09/16/1999WO1999046315A1 Method for producing a liquid formulation of tetraphenylphosphonium phenolate
09/16/1999DE19810745A1 Liquid catalyst formulation for transesterification processes, especially for the solvent-free production of polycarbonate from diphenol and diaryl carbonate
09/15/1999CN1228355A Compound oxide catalyst for phenol hydroxylation and its preparing method
09/14/1999CA2003780C Process of producing isopropylnaphthols
09/08/1999EP0853649B1 Treatment of transition metal containing pigments with chelating or silylating compounds
09/08/1999EP0638057B1 Recovering values from heavy ends in bisphenol-a production
09/08/1999CN1227834A Manufacturing method for bisphenols and manufacturing method for polycarbonate
09/02/1999WO1999043638A1 Preparation of polyindanebisphenols and polymers derived therefrom
09/02/1999WO1999043637A1 Improved process for the production of a dihydroxybenzene and dicarbinol from diisopropylbenzene
09/02/1999WO1999043636A2 Disubstituted lavendustin a analogs and pharmaceutical compositions comprising the analogs
09/02/1999CA2322279A1 Preparation of polyindanebisphenols and polymers derived therefrom
09/02/1999CA2321307A1 Disubstituted lavendustin a analogs and pharmaceutical compositions comprising the analogs
09/01/1999EP0938488A1 Phosphine ligands
09/01/1999EP0809626B1 Production of enantiomerically enriched ortho-substituted alpha, alpha diaromatic methanols
09/01/1999CN1227590A Composition preventing the polymerizationo of ethylene unsaturated monomers, method of preparation and use thereof
08/1999
08/31/1999US5945569 Catalyst and method for producing phenols
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