Patents
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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)
10/1990
10/31/1990EP0394949A2 Process for producing allylsubstituted phenol compound and the product
10/31/1990EP0394813A2 Melt processable thermotropic aromatic copolyesters and process for preparing same
10/31/1990EP0394682A1 Method of ortho-alkylating phenol
10/26/1990CA2015379A1 Melt processable thermotropic aromatic copolyesters and process for preparing same
10/23/1990US4965400 Acylation of 2,6-di-substituted phenol with acetic anhydride, esterifying, hydrogenation, and dehydrating
10/23/1990US4965361 Preparation of 4-substituted aryl olefins
10/18/1990WO1990012776A1 A process for synthesising 9,9-bis(4-hydroxyphenyl) fluorene
10/18/1990WO1990011988A1 Substituted 1-phenylnaphthalenes
10/18/1990CA2030539A1 Process for synthesizing 9,9-bis-(4-hydroxyphenyl)fluorene
10/17/1990CN1010008B Process for extraction of paraffin from mixtures thereof with alkane-sulphonic acids
10/16/1990US4963590 Enzyme inhibitor for treating parkinson's disease along with dopa;potentiation
10/10/1990CN1045966A Monomer containing hexafluorisopropyl, processes thereof and application
10/09/1990US4962241 Process for producing dihydroxynaphthalenes
10/09/1990US4962240 Method for symmetrically dimerizing phenols and process for producing biphenols
10/09/1990US4962192 Chemiluminescent 1,2-dioxetane compounds
10/09/1990US4961922 Complexes based on anthralin and a sterol, a process for obtaining them and their use in therapeutics and cosmetics
10/04/1990DE3910482A1 Cobalt compounds, their preparation and use as adhesives for rubber articles which contain metal constituents
10/04/1990DE3909601A1 Use of special polycarbonates for the production of consumer goods
10/03/1990EP0389961A1 Monomerides containing the hexafluoroisopropyl group, process for their preparation and their use
10/02/1990US4960958 Catalysts for catalytic pyrolysis of phenol distillation residue and process for recovering useful substances by pyrolysis the same
10/02/1990US4960957 Preparation of phenylhydroquinone
10/02/1990US4960956 Alkylating in the presence of a friedel crafts catalyst
10/02/1990US4960539 Use of fluoromethylphenols as solvents for LC-polymers, and new fluoromethylphenols
10/02/1990US4960536 Carboxyalkylated derivatives of alkyl and alkenyl catechol ethoxylates and detergent compositions containing same
10/02/1990CA1274854A1 Process for the extraction of paraffins from mixtures thereof with alkane-sulphonic acids
09/1990
09/26/1990EP0389056A1 Preparation of fluorophenols
09/26/1990EP0286953B1 Use of fluoromethyl phenols as solvents for lc polymers, and fluoromethyl phenols
09/25/1990US4959391 Lipoxygenase inhibitors, leukotriene diseases
09/25/1990US4959377 Phenoxypyridinamine compounds which are use as a dermatological composition
09/25/1990US4959182 Method and compositions providing enhanced chemiluminescence from 1,2-dioxetanes
09/25/1990CA2012918A1 Hexafluoroisopropyl-containing monomers, process for their preparation and their use
09/20/1990WO1990010438A1 Compositions and methods for treating viral infections
09/20/1990CA2011293A1 Preparation of fluorophenols
09/19/1990EP0388322A1 Preparation of 4-substituted aryl olefins
09/18/1990US4957846 Photoresists, photolithography, printed circuits
09/18/1990US4957642 Magnesium phenate detergents
09/18/1990US4957538 Herbicides
09/12/1990EP0387080A1 Alkylation of organic aromatic compounds
09/12/1990EP0386452A1 Diphenyl heteroalkyl derivatives, their preparation and medicinal and cosmetic preparations prepared therefrom
09/12/1990EP0386451A1 Oxygen-bearing diphenyl heteroalkanes, process for their preparation and use
09/12/1990CN1045258A Preparation for alpha-methyl benzyl phenol
09/11/1990US4956502 Process for the preparation of rooperol derivative
09/11/1990CA1273953A1 Derivatives of 1,1,2,2-tetramethyl-1,2-bis-(2-fluoro- 4-hydroxy-phenyl) ethane
09/10/1990CA2011858A1 Alkylation of organic aromatic compounds
09/06/1990DE3906813A1 Free-radical initiators
09/05/1990EP0385882A1 Method for the hydroxylation of phenols and phenol ethers
09/05/1990EP0385658A1 Ring-substituted 2-amino 1,2,3,4-tetra-hydronaphthalenes and 3-aminochromanes
09/05/1990EP0385109A2 Shaped article for optical uses
09/05/1990CN1045099A Ring-substituted 2-amino-1,2,3,4-tetrahydronaphthalenes and 3-aminochromanes
09/04/1990US4954662 Selective chlorination of ortho-substituted phenols
09/04/1990US4954661 Adducts, sub-process
09/04/1990US4954659 Food preservative
09/04/1990US4954603 Epoxy resin
09/04/1990CA1273630A1 Deprotection of allylic esters and ethers
08/1990
08/31/1990CA2007932A1 Process for hydroxylating phenols and phenol ethers
08/29/1990EP0246272B1 Silica-titania hydrocarbon conversion catalyst
08/28/1990WO1990009973A1 Preparation of 4-substituted aryl olefins
08/28/1990CA2046643A1 Preparation of 4-substituted aryl olefins
08/28/1990CA1273364A1 Process for dimerization of aromatic halide compounds
08/27/1990CA2362972A1 Process for preparing ring-substituted 2-amino-1,2,3,4-tetra-hydronaphthalenes and 3-aminochromanes
08/22/1990CN1044807A Composition for denatured denaturation or protection agent for nerve cell and process for preparing benzene derivatives used for composition
08/21/1990US4950817 Process for the preparation of 4,4'-dihalobiphenyls
08/21/1990US4950810 Olefin substitutions in presence of phosphorus containing compound
08/21/1990US4950809 Process for preparing hydroxylated aromatic derivatives by the Baeyer-Villiger reaction
08/21/1990US4950808 Process for the preparation of 4,4'-dihydroxybiphenyl
08/21/1990US4950807 Reacting phenol with acetone
08/21/1990US4950805 Process for washing and obtaining solids of slurry
08/21/1990US4950804 Process for preparing bisphenol A
08/21/1990CA1273025A1 Production of para-diisopropylbenzene and use of the same in the production of hydroquinone
08/16/1990EP0382213A2 Biphenyl derivative, nerve cell degeneration repairing or protecting agent and process for preparing a phenyl derivative contained in the agent
08/15/1990CN1009196B Process for producing orthoalkylphenols
08/14/1990CA1272723A1 Process for the preparation of new phenol derivatives
08/10/1990CA2008401A1 Oxidized diphenyleteroalkanes , the preparation and use thereof
08/10/1990CA2008042A1 Diphenylheteroalkyl derivatives, the preparation thereof and drugs and cosmetics prepared therefrom
08/09/1990WO1990008533A1 Poly-alkylated benzodioxin musk compositions
08/08/1990CN1044413A Reaction processes in a multi-stage fluidized bed
08/07/1990US4946935 Fluorine-containing aromatic compound, process for preparing the same and use thereof
08/07/1990US4946877 Adding water-containing phenol which recover from dehydrochlorination to reaction mixture containing phenol and acetone
08/07/1990US4946653 Process for the simultaneous classification and regulated, continuous discharge of particulate material from fluidized bed reactors
08/07/1990CA1272489A1 Process for the condensation of carbonyl and aromatic compounds
08/02/1990DE3901272A1 Aminoaryl ethers
08/01/1990EP0379862A2 Method for the purification of crude 2,2-bis-(3,5-dimethyl-4-hydroxyphenyl)-propane
08/01/1990EP0379716A1 Chemiluminescent 1,2-dioxetane compounds
08/01/1990EP0305774B1 Ion exchange resin modified by thiazolines
08/01/1990EP0278211B1 Process for the manufacture of p-substituted o-benzylphenols
08/01/1990CA2008976A1 Poly-alkylated benzodioxin musk compositions
07/1990
07/27/1990WO1990008590A1 Reaction processes in a multi-stage fluidized bed
07/27/1990CA2025770A1 Reaction processes in a multi-stage fluidized bed
07/25/1990EP0379083A1 Method of extracting phenols from aqueous solutions
07/19/1990CA2006232A1 Extraction of phenols from aqueous solutions
07/18/1990EP0377638A1 Process for the iodination of hydroxyaromatic and aminoaromatic compounds.
07/17/1990US4942265 Washing a phenol adduct of bisphenol a with phenol, deetherification, distillation, steam stripping, washing
07/12/1990WO1990007538A1 Selected trinuclear novolak oligomers and their use in photoactive compounds and radiation sensitive mixtures
07/12/1990WO1990007511A1 Enhanced chemiluminescence from 1,2-dioxetanes through energy transfer to tethered fluorescers
07/11/1990CN1043696A 萘衍生物 Naphthalene Derivatives
07/10/1990US4940821 Preparation of fluorophenols
07/10/1990US4940809 Bis-anthrols and bis-naphthols and diglycidyl ethers thereof
07/10/1990US4940696 Benzonaphthalene derivatives and their use in therapeutic and cosmetic compositions
07/10/1990CA1271492A1 Process for producing 2,6-dihydroxynaphthalene
07/04/1990EP0376288A1 Naphthalene derivative
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