| 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) |
|---|
| 08/10/2001 | CA2334473A1 Process for the removal of dissolved oxygen from phenol |
| 08/08/2001 | EP1121339A1 Method for the production of bis(4-hydroxyaryl)alkanes |
| 08/07/2001 | US6271424 Heating a composition of mono-tert-butylhydroquinone and 2,5 di-tert-butylhydroquinone in a polar solvent and a non-polar solvent; the non-polar solvent is stripped-off and 2,5-di-tert-butylhydroquinone is solidified |
| 08/07/2001 | US6270843 Process for generating useful electrophiles from common anions and their application in electrophilic reactions with organic substrates |
| 08/01/2001 | EP1120159A1 Supported ionic liquids, process for preparation and use thereof |
| 08/01/2001 | EP0752912B1 Supported lewis acid catalysts derived from superacids useful for hydrocarbon conversion reactions |
| 08/01/2001 | CN1305982A Process for preparing benzenediol by direct catalytic oxidization of phenol |
| 07/26/2001 | WO2001053238A1 Process for producing bisphenol a |
| 07/25/2001 | CN1305448A Condensation method for carbonyl compound on aromatic derivative in basic medium |
| 07/24/2001 | US6265622 Method and composition for hydroxylation of aromatic substrates |
| 07/19/2001 | WO2001051439A1 Method for production of phenol and acetone by decomposition of cumene hydroperoxide |
| 07/18/2001 | CN1303843A Method for synthesizing p-tert-bulylcatechol |
| 07/17/2001 | US6262315 Catalytic oxidation |
| 07/17/2001 | US6261987 Method for preparing an alkylation catalyst, and for ortho-alkylating hydroxyaromatic compounds; and related compositions |
| 07/12/2001 | WO2001049640A1 Process for producing bisphenol a |
| 07/11/2001 | EP1114015A1 Liquid vacuum pump seal to reduce contamination in bisphenol-a |
| 07/11/2001 | CN1302790A Method of preparing aromatic alkyl phenol |
| 07/10/2001 | US6258985 Method for removing metal ions from cresol mixtures |
| 07/10/2001 | US6258901 Process for producing lightly colored p-vinylphenol polymer |
| 07/05/2001 | WO2001047851A1 Fluidised bisphenol dust |
| 07/05/2001 | WO2001047841A1 Dehydrogenation of hydrocarbon feedstocks |
| 07/05/2001 | DE19962530A1 Fluidisierter Bisphenol-Staub Fluidised bisphenol dust |
| 07/04/2001 | EP1112994A1 Method of removing boron from polyalkyl hydroxyaromatics |
| 07/04/2001 | EP1112993A1 Process for producing 3,3',5,5'-tetra-t-butylbiphenol |
| 07/04/2001 | CN1302287A Bioreductive cytotoxic agents |
| 07/04/2001 | CN1302285A Bisphenol cracking method |
| 07/04/2001 | CN1301599A Titanium-silicon molecular sieve and its preparing method |
| 07/03/2001 | US6255539 Chemical composition and process |
| 07/03/2001 | US6255538 Reacting aromatic hydroxyl compound with an olefin in the presence of a sulfonic acid and sulfuric acid catalysts, dialkylphenolic compounds |
| 07/03/2001 | US6255439 Compounds prepared from cashew nut shell liquid; used to prepare polycarbonates |
| 07/03/2001 | CA2006222C Enhanced chemiluminescence from 1,2-dioxetanes through energy transfer to tethered fluorescers |
| 06/28/2001 | WO2001046118A1 Lead halophenoxides and carbonylation catalyst and method for preparing and employing them |
| 06/28/2001 | WO2001046106A1 High purity 4,4-isopropylidene-bis-(2,6 dibromophenol) and process for the preparation of such high purity 4,4-isopropylidene-bis-(2,6 dibromophenol) |
| 06/28/2001 | WO2001046105A1 Bisphenol phenol adducts |
| 06/28/2001 | WO2001046104A1 Bis(4-hydroxyaryl)alkanes |
| 06/28/2001 | WO2001046103A1 (hydroxyalkyl)phenols, method for their preparation, and uses thereof |
| 06/28/2001 | WO2001046102A1 Production of phenol using reactive distillation |
| 06/28/2001 | WO2001046101A1 Stable bisphenolic compositions |
| 06/28/2001 | WO2001046100A1 Method for producing phosphonium phenolates |
| 06/28/2001 | US20010005769 Contacting a alkylation catalyst with a feed containing an alcohol and a phenolic compound to form a mixture of alkyl phenols |
| 06/28/2001 | US20010005765 Method for producing phosphonium phenolates |
| 06/28/2001 | CA2392817A1 Stable bisphenolic compositions |
| 06/27/2001 | EP1110937A1 Method for cleavage of bisphenol |
| 06/27/2001 | EP1110910A1 A titanium-silicalite molecular sieve and the method for its preparation |
| 06/27/2001 | EP1109770A1 A method for preparing bisphenol a |
| 06/27/2001 | EP1109769A1 Method for producing bis(4-hydroxyaryl)alkanes |
| 06/27/2001 | EP1109768A1 Purification of alkylated phenols by melt crystallization |
| 06/27/2001 | CN1300729A Preparation of high purity bisphenol A |
| 06/27/2001 | CN1067674C Synthesis of p-cresol by direct alkali fusion method from toluene-p-solfonic acid. |
| 06/26/2001 | US6252124 Wasteless economic method of production of phenol and acetone |
| 06/21/2001 | US20010004674 Reacting phenol with alcohol in the presence of metal hydroxide or alkoxide under supercritical state of the alcohol |
| 06/21/2001 | US20010004670 Electron-withdrawing group present on carbonyl compound is selected from fluoroalkyl derivatives, esters, including orthoesters, and nitrites and condensation is carried out in basic medium |
| 06/21/2001 | DE19961566A1 Use of a desorber with optionally series-connected distillation unit for separation of bis-phenol, e.g. Bisphenol A, and phenol from adducts of bis-phenol and phenol |
| 06/21/2001 | DE19961521A1 Isolation and purification of bisphenol-phenol adducts, e.g. for production of Bisphenol A, involves separation from mother liquor in a rotary vacuum filter, washing the crystals and removing washings by suction |
| 06/21/2001 | DE19961520A1 Phosphonium phenolate compounds,useful as catalysts for the production of polycarbonate, are prepared by crystallization of the product from the phosphonium halide and phenol reaction mixture. |
| 06/20/2001 | EP1108705A1 Process for alkylation on the aromatic ring of phenols or of ethers of phenols |
| 06/20/2001 | EP1108704A1 Process for producing alkylated hydroxyl-containing aromatic compounds |
| 06/20/2001 | EP1107940A1 Vitamin d3 mimics |
| 06/20/2001 | EP0876319B1 Improved process for the production of bisphenols |
| 06/20/2001 | EP0868417B1 Method to prepare ortho substituted phenol |
| 06/20/2001 | CN1300273A Process for the preparation of bisphenol A |
| 06/19/2001 | CA2187649C Zeolite catalyst for production of phenol and derivatives |
| 06/13/2001 | DE19954141A1 Reduction of salt content of high-boiling fraction, useful for carbon black production, obtained in phenol production from cumene involves dilution with organic liquid before extraction |
| 06/13/2001 | CN1298857A Process for preparing 4-methyl catechol |
| 06/12/2001 | US6245951 Process for cleaning bisphenol pre-reactor |
| 06/12/2001 | US6245950 Process for the preparation of tetrabromobisphenol-A |
| 06/07/2001 | WO2001040156A1 High-quality bisphenol a and process for producing the same |
| 06/07/2001 | WO2001040155A1 Initiation method of a method for producing 2,2-bis(4-hydroxyphenyl)propane |
| 06/07/2001 | US20010003139 By reacting in the presence of oxygen, a catalyst, a proton source such as trifluoroacetic acid and non-gaseous reductant(s) such as ferrocene; efficiency; benzene to phenol for example |
| 06/06/2001 | CN1298369A Method for suspension hydrogenation of an anthraquinone compound in a special reactor in order to produce hydrogen peroxide |
| 06/06/2001 | CN1066705C Process for purification of bisphenol |
| 06/06/2001 | CN1066704C Process for continuous production of high purity bisphenol A |
| 06/06/2001 | CN1066703C Process for purification of phenol |
| 06/05/2001 | US6242609 Ammonium trihalide for halogenation of color couplers and silver halide emulsions |
| 05/31/2001 | WO2001037992A1 Method for conditioning ion exchangers |
| 05/31/2001 | WO2001037629A2 High surface microporous materials which are active in oxidation reactions. tiq-6 and metiq-6 |
| 05/31/2001 | DE19957602A1 Start-up of bisphenol A production over sulfonated crosslinked polystyrene resin uses higher phenol concentration and lower acetone concentration and throughput than in optimum long-term operation |
| 05/31/2001 | DE19956229A1 Conditioning of ion exchanger, used as catalyst, e.g. in bisphenol production, involves repeated washing with conductivity water, draining, mixing with e.g. phenol and drying by circulation through washing and distillation units |
| 05/30/2001 | CN1296938A Process for preparing phenol from benzoic acid and recovering useful substances |
| 05/29/2001 | US6239317 Process for the production of halogeno-o-hydroxydiphenyl compounds |
| 05/29/2001 | CA2042404C Alkylation of aromatics |
| 05/25/2001 | WO2001036424A2 Naphthopyrans having a perfluoroalkyl substituent in position 5, preparation and compositions and matrices containing them |
| 05/25/2001 | WO2001036359A1 Optically active fluorinated binaphthol derivative |
| 05/25/2001 | WO2001036358A1 Method for the production of bisphenol-a |
| 05/25/2001 | CA2390109A1 Naphthopyrans having a perfluoroalkyl substituent in position 5, preparation and compositions and matrices containing them |
| 05/23/2001 | CN1066131C Method for preparation of high-purity bisphenols |
| 05/22/2001 | US6235946 Concurrent feeding of bisphenol a and solvent with hydrobromic acid and hydrogen peroxide |
| 05/22/2001 | US6235945 Isomerization isopropenylphenol, dimers or oligomers, neutralization and isolation |
| 05/17/2001 | WO2001034544A1 Bisphenol production |
| 05/17/2001 | DE19954786A1 Schmelzkristallisation Melt Crystallization |
| 05/17/2001 | DE19954485A1 Immobilized ionic liquid production having anion and organic cation components comprises forming funtionalized support material in absence of ionic liquid and treating funtionalized support material with ionic liquid |
| 05/17/2001 | DE19954311A1 Bisphenol-Herstellung Bisphenol-production |
| 05/15/2001 | US6232510 Reacting aromatic substrate in presence of oxygen, proton source, non-gaseous reductant and catalyst formed in solution from vanadium, niobium and/or tantalum precursor, anionic ligand precursor, neutral electron-donating ligand precursor |
| 05/15/2001 | US6232485 Production of phosphate esters |
| 05/10/2001 | WO2001032308A1 Immobilised ionic liquids |
| 05/10/2001 | CA2388805A1 Immobilised ionic liquids |
| 05/09/2001 | EP1097915A1 Process for producing bisphenol a |
| 05/08/2001 | US6229055 Synthesis of fluorinated xanthene derivatives |
| 05/08/2001 | US6229037 Polyorganosiloxane catalyst |
| 05/03/2001 | WO2001030732A1 Method and device for producing phenol and acetone by means of acid-catalysed, homogenous decomposition of cumolhydroperoxide |