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)
08/1980
08/21/1980WO1980001688A1 Dehydrohalogenation of a diphenyl trichloroethane
08/21/1980WO1980001687A1 Dehydrohalogenation of a diphenyl trichloroethane
08/20/1980EP0014410A1 Process for the separation of phenol from a mixture of cresols
08/19/1980CA1084062A1 Sulfur containing bisphenol antioxidants
08/05/1980US4216342 Process for the purification of crude 2,4,5-trichlorophenol
08/05/1980CA1083181A1 Method of removing aluminium-containing catalyst from phenol alkylation products
08/05/1980CA1083060A1 Process for the continuous hydrocarbonization of coal
07/1980
07/29/1980US4215229 Process for alkylating phenolic compounds to produce ortho- and para-monoalkylated phenols and 2,4- and 2,6-dialkylated phenols
07/29/1980US4215074 Process for preparing cis-bicyclooctylamines
07/29/1980CA1082742A1 Hydroxylation of aromatic compositions
07/23/1980EP0013577A2 Process for the preparation of hexahydronaphthacene derivatives
07/23/1980EP0013501A1 Method of recovering resorcinol
07/23/1980EP0013436A1 Process for preparing p,p'-biphenol of high purity
07/22/1980US4214105 Process for the hydroxylation of phenol
07/22/1980CA1082205A1 Miticidal and aphicidal 2-higher alkyl-3-hydroxy-1,4- naphthaquinone carboxylic acid esters
07/15/1980US4212997 Cooling, melting, selective separation of rhombic crystals in water
07/15/1980US4212822 Preparation of o-dialkylaminomethylphenols
07/09/1980EP0013133A1 Process for separation of alkylphenols by azeotropic distillation
07/09/1980EP0013085A1 Process for preparing pyrogallol
07/08/1980CA1081259A1 Disproportionation of xylenols with phenol to form cresols
07/01/1980CA1080750A1 Process for the preparation of 4,4'-dihydroxy-3,3',5,5'-tetraalkyl-diphenylalkanes
06/1980
06/25/1980EP0012613A1 A process for producing 3-alkylphenols and 1,3-dihydroxybenzene
06/24/1980CA1080256A1 Process for the preparation of multinuclear phenols which are alkylated in the nucleus and their use
06/17/1980US4208536 Hydroxylation of aromatic compounds
06/17/1980US4208332 Synthesis of optically active vitamin E
06/17/1980US4208331 Synthesis of optically active vitamin E
06/17/1980CA1079506A1 Process for the preparation of a phenolic composition
06/10/1980US4207265 Oxidation of p-isopropenylphenol
06/10/1980CA1079304A1 Dehydrogenation of hydroxy-cycloaliphatic compounds
06/03/1980CA1078874A1 Polyhydroxy phenols and process for their preparation
06/03/1980CA1078873A1 Polyhydroxy phenols and method for preparing the same
06/03/1980CA1078863A1 Process for the manufacture of resorcinols
05/1980
05/28/1980EP0011372A1 1-Acyloxyphenyl-1,2-diphenylalkene derivatives, processes for their manufacture and a pharmaceutical composition containing these derivatives
05/28/1980EP0011296A1 Oxidative process for preparing substituted biphenols
05/27/1980US4205189 Method for producing 3-alkylphenols and 1,3-dihydroxybenzene
05/27/1980US4205188 Process for the production of hydroxybenzyl alcohols
05/27/1980US4205187 Thermal dealkylation of 4,4*-bis/substituted phenol/
05/20/1980US4203969 Dithranol compositions for topical applications
05/13/1980US4202993 Method for making substantially anhydrous alkali metal bisphenol salts
05/13/1980US4202199 Manufacture of alkylphenol compounds
05/13/1980CA1077522A1 Process for the preparation of thymol
05/13/1980CA1077521A1 Method of producing 2,6-ditertbutyl-4-methylphenol
05/13/1980CA1077520A1 Process for the preparation of 2,5-dichlorophenol
05/06/1980US4201879 Vitamin e intermediate
05/06/1980US4201877 Process for producing a linear trimer of paraisopropenyl phenol
05/06/1980US4201726 Intermediates formed from pentadiene and epoxytetramethylpentadecane
05/06/1980CA1077064A1 Process for the separation of cresol isomers
05/06/1980CA1077063A1 Liquid phase methylation of ortho cresol
05/06/1980CA1077062A1 Trimethylhydroquinone and a process for the preparation thereof
04/1980
04/22/1980US4199531 Intermediates for the production of quinones
04/08/1980US4197413 Alkylation over selective zeolite, oxidation to hydroperoxide, rearrangement
04/08/1980CA1075265A1 Hydrocarbon-substituted methylol phenols
03/1980
03/25/1980US4195189 In a molten state with an activated basic cupric oxide
03/18/1980CA1073928A1 1,1,2-tris-(o/p-hydroxyphenyl)-1-phenyl-ethanes and a process for their preparation
03/18/1980CA1073927A1 Trisphenols
03/11/1980US4192959 Countercurrent extraction
03/11/1980US4192958 Thermocracking high-boiling by-products contained in acid-cleavage product of m-diisopropylbenzene dihydroperoxide, aromatic ketone
03/11/1980US4192957 Dehydrohalogenation of a diphenyl trichloroethane
03/11/1980US4192956 Dehydrochlorination of 1,1,1-trichloro-2,2-bis(4-hydroxyphenyl)ethane to 1,1-dichloro-2,2-bis(4-hydroxyphenyl)ethylene with liquid ammonia and inorganic halide promoter
03/11/1980US4192955 From equimolar adduct of 2,2-bis(4-hydroxyphenyl)propane and phenol, dissolving in water-miscible solvent, mixing with water, cooling to precipitate bisphenol a
03/11/1980US4192954 Mixing by-products with phenol, adding anhydrous hydrogen chloride under superatmospheric pressure, isomerizing
03/06/1980WO1980000348A1 Polycarbonate compositions having improved barrier properties
03/05/1980EP0008322A1 Process for preparing resorcinols from delta-ketocarboxylic esters and process for regeneration of the used catalyst
03/04/1980US4191843 Preparation of bisphenols
03/04/1980CA1072984A1 Antioxidant
02/1980
02/20/1980EP0008163A1 A process for preparing cis-2-aryl-3-aminomethyl-bicyclo (2,2,2) octanes and the compounds 2-aryl-3-aminomethylidene-bicyclo (2,2,2) octanes
02/19/1980US4189612 Vitamin e intermediate
02/19/1980US4189610 Preparation of 4,4-dioxy-substituted stilbenes
02/19/1980US4189602 Acid oxidation process
02/19/1980CA1072122A1 Alkylidene-bisphenols containing sulphur, and their use as stabilisers
02/12/1980US4188497 Prepared from isophorone with halogen catalyst, contacting reaction mixture with metal to remove halogen
02/07/1980WO1980000150A1 Process for recovering 2,2-bis(4-hydroxyphenyl)propane from an adduct of 2,2-bis(4-hydroxyphenyl)propane and phenol
01/1980
01/23/1980EP0007285A1 Process for the preparation of orthohydroxy benzylic alcohols
01/22/1980US4185154 Synthesis of vitamin E
01/22/1980CA1070331A1 Catalytic synthesis of phenols
01/15/1980CA1069938A1 PREPARING RESORCINOLS FROM .delta.-KETOCARBOXYLIC ACIDS OR FROM THEIR LACTONES
01/09/1980EP0006791A1 Process for preparing 1,2,3,4-tetrahydroanthracen-9,10-diol
01/08/1980US4182918 Process for the preparation of polyhydric phenols
01/08/1980US4182917 Hydroquinone and pyrocatachol from phenol and a percarboxylic acid
01/08/1980US4182916 Treatment of beta-naphthol with an absorbent followed by selective catalytic hydrogenation
01/08/1980US4182915 Preparation of substituted aromatic compounds
01/08/1980US4182838 Polycarbonate compositions having improved flame retardance and improved water vapor transmission
01/08/1980US4182719 Synthesis of optically active vitamin E
01/08/1980CA1069538A1 Hydroxylation of aromatic compounds
12/1979
12/25/1979US4180684 Process for the production of 4,4-isopropylidene-bis'(2,6-dibromophenol)
12/25/1979US4180683 Formation of crystalline adduct with phenol
12/25/1979US4180651 Polycarbonate composition having resistance to high heat distortion
12/25/1979CA1068726A Methylation of 2,6-xylenol to produce 2,3,6-trimethylphenol
12/04/1979US4177197 Cyclization substrates and 7α-substituted 19-norsteroid derivatives
11/1979
11/13/1979CA1066219A1 Method for purifying pentachlorophenol
11/06/1979US4173541 Anitoxidants
10/1979
10/23/1979CA1064920A1 Process for the preparation of optically active anthracyclinones
10/23/1979CA1064893A1 Catalyst composition and method for preparing the same
10/16/1979CA1064521A1 2,2,6,6-tetrahalocyclohexanone
10/09/1979CA1064171A1 Treatment of aqueous waste
10/03/1979EP0004522A2 New compounds related to dilignols, compounds related to dilignols for use in the treatment of liver deseases and pharmaceutical compositions containing them
10/03/1979EP0004447A2 Preparation of trifluoromethylphenols and novel trifluoromethylphenyl benzyl ether intermediates
09/1979
09/19/1979EP0004168A1 Process for the removal of hydroxyacetone from phenol
09/18/1979US4168388 Intermediate for preparation of trifluoromethylphenols
09/18/1979CA1062831A1 Pollution free method of making 2,6-bis (2,4-dihydroxy phenylmethyl)-4-chlorophenol tire cord dips and product