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) |
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07/05/2001 | WO2001047851A1 Fluidised bisphenol dust |
07/05/2001 | DE19962530A1 Fluidisierter Bisphenol-Staub Fluidised bisphenol dust |
07/04/2001 | EP1112993A1 Process for producing 3,3',5,5'-tetra-t-butylbiphenol |
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 | US6255517 Thymol derivatives having anti-tumor activity, and anti-cancer agent comprising the same |
07/03/2001 | US6255439 Compounds prepared from cashew nut shell liquid; used to prepare polycarbonates |
07/03/2001 | US6255438 Phenolic compounds, polymers derived therefrom, and method |
07/03/2001 | US6254853 Drugs with carriers |
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 | 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 | EP1109816A1 Vinyl substituted cyclic products of the ene-yne reaction |
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 | CN1067675C Oil-soluble tea polyphenol and its preparation |
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 | 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 | EP0876319B1 Improved process for the production of bisphenols |
06/20/2001 | EP0868417B1 Method to prepare ortho substituted phenol |
06/19/2001 | US6248573 Sulfonylating or halogenating a (s)-1-phenyl-2-propanol derivative to produce (s)-1-phenyl-2-substituted propane derivative; chemical intermediate for synthesis of antiobesity drug |
06/14/2001 | US20010003360 Styrene monomer polymerization inhibition using substituted dihydroxyarenes and nitroxides |
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 | WO2001040154A1 Method for producing 4'-alkyl-4-hydroxy-biphenyl derivatives |
06/07/2001 | DE19958061A1 Verfahren zur Herstellung von 4'-Alkyl-4-hydroxy-biphenylderivaten Process for the preparation of 4'-alkyl-4-hydroxy-biphenyl derivatives |
06/06/2001 | CN1298377A Preparation of polyindanebisphenols and polymers derived therefrom |
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 | US6242641 Cycloaliphatic compounds |
06/05/2001 | US6242609 Ammonium trihalide for halogenation of color couplers and silver halide emulsions |
06/05/2001 | US6242606 Reacting a a,a-dimethylphenylacetic acid amide with a w-halo compound produces w'-halo-a-keto-a,a-dimethylphenylacetic acid amide and reacting it with a piperidine compound; 2-(4-(4-chloro-butyryl)-phenyl)-2-methy-propionic acid |
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 |
05/30/2001 | 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 | US6239171 Tocotrienols and tocotrienol-like compounds and methods for their use |
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 | DE19954311A1 Bisphenol-Herstellung Bisphenol-production |
05/16/2001 | CN1065854C Separation of phend |
05/10/2001 | WO2001032308A1 Immobilised ionic liquids |
05/10/2001 | CA2388805A1 Immobilised ionic liquids |
05/08/2001 | US6229055 Synthesis of fluorinated xanthene derivatives |
05/03/2001 | WO2001030735A1 Method for purifying acetone |
05/02/2001 | EP1095003A1 Cytokine production and tyrosine kinase inhibitors |
05/01/2001 | US6225513 By oxidation with catalytic cleavage of cumene hydroperoxide; concentrated to cumene content, mixture is catalytically cleaved producing dicumyl peroxide and dimethylphenylcarbinol in a tubular reactor |
05/01/2001 | US6225512 Isomerization of dimers or oligomers of isopropenylphenol in the presence of an acid catalyst(boron trifluoride), base neutralization, then recrystallization to isolate 3-(4-hydroxyphenyl)-1,1,3-trimethylindan-5-ol |
05/01/2001 | US6225375 Preparation of low-dust stabilizers |
05/01/2001 | CA2033021C A process and a catalyst composition of alkylating benzene or substituted benzene or transalkylating alkylated benzene |
04/26/2001 | WO2001028964A2 A liquid phase catalytic hydrogenation process to convert aldehydes to the corresponding alcohols |
04/25/2001 | EP1094051A1 A liquid phase catalytic hydrogenation process to convert aldehydes to the corresponding alcohols |
04/25/2001 | EP1066233A4 Improved process for the production of a dihydroxybenzene and dicarbinol from diisopropylbenzene |
04/25/2001 | CN1292806A Method for producing liquid formulation of tetraphenylphosphonium phenolate |
04/25/2001 | CN1064958C Method for preparation of taxol midbody |
04/24/2001 | US6221374 Biologically active compound, polyphenolic compound, organic solvent carrier |
04/19/2001 | WO2001027059A1 Process for cleaning bisphenol pre-reactor |
04/17/2001 | US6218584 Brominating bisphenol a; discoloration inhibition with hydrogen bromide; precipitation; high yield |
04/17/2001 | US6218431 Substituted biphenyls |
04/17/2001 | CA2103044C Novel bi-aromatic compounds derived from a salicylic pattern, method of preparation and use in human and veterinary medicine and in cosmetics |
04/12/2001 | US20010000260 Adding water and a diluent to form a separable crude phenolic bottoms stream having a combined density lower than the density of the bottoms; separating out a hydrocarbon phase and a salt-containing aqueous phase; phenols from peroxides |
04/11/2001 | CN1290683A Use of bisphenol in preparing polycarbonic ester and opoxy resin |
04/11/2001 | CN1290682A Method for preparing phenol, methyl-ethyl ketones and acetone |
04/11/2001 | CN1290681A Method for preparing phenol, acetone and methyl-ethyl ketones |
04/11/2001 | CN1290680A Method for preparing phenol |
04/11/2001 | CN1064343C Process for producing o-isopropyl phenol |
04/11/2001 | CN1064342C Process for producing o-secondary butyl phenol |
04/05/2001 | DE19946888A1 Verfahren zur Herstellung von Phenol, Aceton und Methylethylketon A process for producing phenol, acetone and methyl ethyl ketone |
04/05/2001 | DE19946887A1 Verfahren zur Herstellung von Phenol, Methylethylketon und Aceton A process for producing phenol, methyl ethyl ketone and acetone, |
04/05/2001 | DE19946886A1 Verfahren zur Herstellung von Phenol A process for the production of phenol |
04/04/2001 | EP1088809A1 Process for the preparation of phenol, acetone and methylethylketone |