Patents
Sitemap › C07 - Organic chemistry › C07C - Acyclic or carbocyclic compounds › C07C 37 - Preparation of compounds having hydroxy or o-metal groups bound to a carbon atom of a six-membered aromatic ring
Patents for C07C 37 - Preparation of compounds having hydroxy or o-metal groups bound to a carbon atom of a six-membered aromatic ring (10,407)
11/1995
11/08/1995CN1111230A A method for producing high-purity bisphenols
11/02/1995EP0679626A1 Process for the preparation of ultrapure bisphenol-A and use thereof
11/02/1995EP0679625A2 Process for the preparation of 2,3,6-trimethylphenol
11/02/1995EP0679151A1 Method of making 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane
10/1995
10/31/1995US5463140 Condensing aldehyde or ketone with phenol in presence of soluble or insoluble mercaptosulfonic acid compound to form geminal bisphenol moiety at each aldehyde or ketone moiety
10/31/1995US5463136 Cumene hydroperoxide cleavage process
10/31/1995US5463129 Cleaving arylethers
10/29/1995CA2147913A1 Preparation of 2,3,6-trimethylphenol
10/19/1995WO1995027691A1 Method for production of phenol and its derivatives
10/19/1995WO1995027560A1 Catalysts for production of phenol and its derivatives
10/19/1995CA2147048A1 Method for the preparation of ultra-pure bisphenol a and the use thereof
10/12/1995WO1995026816A1 Supported lewis acid catalysts for hydrocarbon conversion reactions
10/12/1995WO1995026814A1 Supported lewis acid catalysts derived from superacids useful for hydrocarbon conversion reactions
10/12/1995CA2180869A1 Supported lewis acid catalysts for hydrocarbon conversion reactions
10/11/1995EP0676387A1 2,2-bis(3,5-disubstituted-4-hydroxyphenyl)propane derivative, process for producing the same, and process for producing pyrogallol therefrom
10/11/1995EP0676238A2 Metal-ligand catalysts for oxidation of alkanes and decomposition of organic hydroperoxides
10/11/1995EP0676237A1 Modified ion exchange resins and use thereof
10/10/1995US5457244 Phenol tar waste reduction process
10/10/1995US5456806 Procedure for the recovery of phenol from its mixtures containing cumene and alpha-methylstyrene
10/05/1995DE4405876A1 Shaped catalyst or catalyst carrier bodies
10/05/1995CA2146314A1 Metal-ligand catalysts for oxydation of alkanes and decomposition of organic hydroperoxydes
10/04/1995EP0675097A1 Process for purifying a bisphenol
10/04/1995EP0674611A1 Selective hydroxylation of phenol or phenolic ethers
10/03/1995US5455282 Salt formation to cover small amount of sulfonic acid groups; repeated activation
10/02/1995EP0693957A4 A multiple stage suspended reactive stripping process and apparatus
09/1995
09/27/1995CN1109044A Preparation of purified diisopropylphenol from residual orthoisopropylphenol
09/20/1995EP0590078B1 Synthetic crystalline zeolite, its synthesis and use
09/20/1995EP0458965B1 Process for the preparation of vinyl ethers
09/20/1995CN1108585A Hydrogenation reaction catalyst precursor, process for production thereof and process for production of alcohol
09/13/1995EP0671377A1 Method of continuous production of highly pure bisphenole-A
09/13/1995EP0671376A1 Method for producing bisphenols
09/13/1995EP0670856A1 Thermosettable composition containing mesogenic moieties
09/11/1995CA2143910A1 Method for producing high-purity bisphenols
09/06/1995EP0670297A1 Color stable bisphenols
09/06/1995EP0670296A1 Acid cleavage of cumene hydroperoxide to phenol, acetone and alpha-methylstyrene
09/06/1995CN1107755A Dawson-structure heteropoly compound catalyst for synthesizing hydrochinone with phenol and hydrogen peroxide by hydroxylation and its preparation
09/02/1995CA2143578A1 Method of technical cumene hydroperoxide acidic cleavage to phenol acetone and alpha-methylstyrene
08/1995
08/31/1995DE19506549A1 Prepn. of 1,3-di:hydroxy-4,6-bis-Ý alpha -methyl- alpha -(4'-hydroxy phenyl)-ethyl¨-benzene
08/29/1995US5446212 Reduced methyl bromide process for making tetrabromobisphenol-A
08/23/1995CN1107133A A process for inhibiting dihydric phenol degradation and color formation and composition thereof
08/23/1995CN1029553C Method for prepn. of p-isopropenyl phenol
08/15/1995CA1336719C Process for fractionating fast-pyrolysis oils and products derived therefrom
08/09/1995EP0474670B1 Preparation of phenylhydroquinone
08/09/1995CN1106372A Process for preparing 2,2-diphenylhexafluoropropanes
08/08/1995US5440066 Process for splitting polycarbonates
08/03/1995DE4402333A1 Organo rhenium derivs. used as catalysts
08/02/1995EP0665209A1 Process for the catalytic oxidation of aromatic compounds
08/02/1995CN1105973A Nematicides against pine wood nematodes
08/01/1995US5438146 Enhanced chemiluminescence from 1,2-dioxetanes through energy transfer to tethered fluorescers
08/01/1995US5438142 Functionalized tris(hydroxyphenyl) compounds
07/1995
07/26/1995CN1105657A Petroleum cresol desulfurization and debrominating process
07/25/1995US5435985 Anthraquinone process using metal catalysts of palladium group or platinum group with other metals
07/19/1995EP0663381A2 Process for releasing acidic organic compounds from their salts by means of carbon dioxide
07/19/1995EP0662856A1 Recovery of phenol from low concentrations with sodium sulfate
07/18/1995US5434317 Hydroxylation of phenolic compounds
07/18/1995US5434316 Purification of bisphenol-A
07/18/1995US5434118 Of a silica matrix within which one or more catalytic oxides are uniformly dispersed
07/14/1995CA2140116A1 Process for releasing acidic organic compounds from salts thereof by carbon dioxide
07/05/1995CN1104621A Extraction of theophenol
07/05/1995CN1029226C Method of purifying bisphenol-A
07/05/1995CN1029225C Phenol preparing method
07/04/1995US5430200 High speed acid catalyzed cleavage of aralkyl hydroperoxide to phenol and alkylcarbonyl compound
07/04/1995US5430199 Method for recovering phenol and xanthene values from bisphenol A tars
07/04/1995US5430183 Para-hydroxyalkylation of hydroxylated aromatic compounds
07/04/1995US5430181 Process for improving a controlled oxidation reaction
06/1995
06/29/1995WO1995017372A1 A method of cleaving arylethers
06/29/1995CA2178830A1 A method of cleaving arylethers
06/28/1995CN1029121C Method for preparation of phenol
06/27/1995US5428075 Treating with anhydrous phenol until a phenolic reaction product is formed
06/22/1995DE4343596A1 Recycling aromatic polycarbonate
06/20/1995US5426245 Reacting aromatic compound with oxygen and hydrogen in liquid phase, catalyst of noble metal of group 8 supported on carrier in presence of vanadium compound
06/20/1995US5426244 Method for preparing dihydric phenols
06/20/1995US5426243 Heating beta-naphthol dissolved in organic solvent with bromine in presence of quaternary ammonium salt catalyst
06/14/1995EP0657457A1 Novel fluorinated diazabicycloalkane derivatives
06/13/1995US5424460 Synthesis intermediates containing a hexane ring and processes for their preparation
06/08/1995WO1995015301A1 Preparation of 4,4'-dihydroxy-alpha-alkylstilbenes and 4,4'-dihydroxy-alpha, alpha'-dialkylstilbenes
06/07/1995EP0656342A1 Method for purification of phenol
06/07/1995CN1103396A Method to treat an ion-exchanger catalyst for the process of bisphenol-A synthesis
05/1995
05/31/1995CN1103062A Method for recovering bis hydroxy aromatic organic values and bis ary carbonate values from scrap aromatic polycarbonate
05/30/1995US5420362 Synthesis of 2-methyl-1-naphthol
05/30/1995US5420361 Formulation of and dehydration of hydroxylated diphenyl acetylenes
05/26/1995WO1995013869A1 Heteropoly compounds and use in aromatic alkylation
05/23/1995US5418312 Difunctional cyclobutabenzene monomers
05/18/1995WO1995013259A1 Method of making 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane
05/16/1995US5416235 Preparation of substituted aryl compounds
05/16/1995US5416188 Crosslinking agents for polyesters
05/10/1995EP0651674A1 Catalysts and their use in oxidation of satured hydrocarbons
05/10/1995CN1102407A Method for preparing ortho-methylated phenol compounds
05/09/1995US5414187 Organosulfonic acid containing phosphonate groups complexed with Lewis acid, gasoline blending
05/09/1995US5414156 Process for producing ortho-isopropylated phenol derivatives
05/09/1995US5414155 Preparation of o-dihydroxylated aromatic compounds via oxidation of o-fuchsones
05/09/1995US5414154 Phenol with low levels of methylbenzofuran
05/09/1995US5414153 Hydroxylation of phenolic compounds
05/09/1995US5414152 Method for extending the activity of acidic ion exchange catalysts
05/09/1995US5414151 Method for making bisphenol
05/09/1995US5414150 Preparation of 4,4'-dihydroxy-alpha-alkylstilbenes and 4,4'-dihydroxy-alpha, alpha'-dialkylstilbenes
05/09/1995US5414149 Alpha-hydroxy polycarboxylic acid
05/03/1995EP0650951A1 A process for inhibiting dihydric phenol degradation and color formation
05/03/1995EP0650949A1 Process for preparing 2,2-diphenylhexafluoropropanes
05/02/1995US5412143 Process for the preparation of 5-(2,4-difluorophenyl)-salicylic acid
1 ... 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 ... 105