Patents
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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)
06/1982
06/29/1982US4337370 Process for the preparation of resorcinol derivatives
06/29/1982US4337369 Prepared by reaction of isobutylene with alkylphenol, ion exchange resin catalyst, trioxane
06/22/1982US4336270 O-benzylphenols
06/22/1982CA1126297A1 Preparation of biphenols by the oxidative coupling of alkylphenols
06/15/1982CA1125789A1 Separation of phenols
06/08/1982US4334108 Process and apparatus for preparation of phenols
06/08/1982US4334107 Catalytic purification of phenol
06/08/1982US4334106 Cylization
06/08/1982US4333801 Recovery of a cumene/alpha-methylstyrene fraction from a mixture thereof with phenol and water
06/08/1982CA1125302A1 Preparation of trifluoromethylphenyl nitrophenylethers
06/02/1982EP0052839A1 Process for producing phenols
05/1982
05/26/1982EP0052573A1 Discoloration prevention of phenolic antioxidants
05/25/1982US4331566 Manganese oxide, group 2a and 8 metal oxides, alumina carrier
05/18/1982US4330324 Herbicidal 4-trifluoromethyl 4-nitrodiphenyl ethers
05/11/1982US4329517 Comprising iron oxide component
05/11/1982US4329509 Co-production of 2-alkanones and phenols
05/05/1982EP0050937A1 Process for the ortho-alkylation of phenols
05/04/1982US4328377 Acid cleavage of aryl hydroperoxides
05/04/1982US4328361 Peroxide oxidation of p-isopropenyl phenol derivatives to hydroquinone compounds
05/04/1982CA1123015A1 Process for preparing magnesium alkylphenates, and their use as additives, detergents and dispersants in lubricating oils
05/04/1982CA1122988A1 Substituted oxazolines
04/1982
04/27/1982US4327229 Recovery of bisphenol-A values
04/27/1982US4326949 Oxygen alkylation of phenol-containing hydrocarbonaceous streams
04/27/1982CA1122603A1 Process for the preparation of arylacetic acid derivatives
04/20/1982US4325789 Process for separating off phenol from a mixture thereof with a cresol
04/20/1982CA1122228A1 Selective reaction of 1,4-disubstituted benzene compounds
04/20/1982CA1122213A1 Process for preparing 1,2,3,4 tetrahydro 9.10 diol-anthracene
04/14/1982EP0049411A2 Method and catalyst for making bisphenol
04/13/1982US4324929 Catalytic fluoroalkylation of benzene with 3,3,3-trifluoropropylene
04/13/1982US4324926 Process for the purification of 4,4' dihydroxydiphenyl
04/13/1982US4324925 Treatment of a phenol with a cation exchanger before hydroxylation with a peroxy compound
04/07/1982EP0049126A1 Alpha-methyl-benzyl-chlorophenols and process for their preparation
04/06/1982US4323715 Acidic alumina alkylation catalyst
04/06/1982US4323714 Alkylation of hydroxy-substituted aromatic compounds
04/06/1982US4323713 Preparation of mono-tertiary butylhydroquinone
04/06/1982US4323432 Process for isolating and recovering meta- and para-cresols from crude cresol-containing compositions composed of cresol components, unreacted cymene components and high-boiling by-products
03/1982
03/30/1982US4322566 Magnesium oxide catalyst
03/30/1982US4322560 Process for controlling highly exothermic hydroperoxide decomposition
03/30/1982CA1120954A1 Preparation process for orthohydroxybenzylic alcools
03/30/1982CA1120949A1 Phenol production
03/30/1982CA1120703A1 Antioxidant
03/24/1982EP0047781A1 Dye-forming developers.
03/16/1982US4320235 Preparation of 1-(aralkyl)-2-naphthols
03/16/1982US4320234 Water -alcohol cosolvent
03/16/1982US4319396 Method for fabricating IGFET integrated circuits
03/10/1982EP0046918A1 Process for the production of pyrocatechol and hydroquinone
03/09/1982US4319054 Process for producing pyrogallol
03/09/1982US4319053 From 2,6-dialkylphenol and aliphatic or cycloaliphatic ketone, sulfonated styrene-divinylbenzene ion exchange resin
03/09/1982US4319052 Method for preparing sterically hindered bis- or polyphenols
03/09/1982US4319051 Oxidation resistance
03/09/1982US4319050 Copper complex as catalyst for formate ester decarbonylation
03/03/1982EP0046720A1 Process for preparing polyglycidyl ethers of polyphenols
03/03/1982EP0046534A1 Process for the preparation of pyrocatechol and hydroquinone
03/02/1982US4317949 Reaction of aromatic compound and olefin using a solid acid catalyst; dealkylation; isomerization
03/02/1982US4317944 Condensing phenol and acetone, acid catalyst
03/02/1982US4317933 Alkylating to produce an aldehyde substituted phenol, esters thereof
03/02/1982US4317920 Antirheumatic agents, antiinflammatory agents
02/1982
02/24/1982EP0046405A1 Method of treating hydroperoxide mixtures
02/23/1982US4316996 Discoloration prevention of phenolic antioxidants
02/23/1982US4316995 From p-hydroxybenzaldehyde malonic acid
02/17/1982EP0045959A1 Process for preparing bisphenols
02/16/1982US4315848 Protective coating for automobiles
01/1982
01/27/1982EP0044366A1 Distillative freezing process for separating close boiling mixtures
01/20/1982EP0044260A2 Process for the preparation of polyphenols optionally substituted by an aldehyde group
01/12/1982US4310712 Process for the production of phenol and acetone
01/12/1982US4310702 Selective monochlorination of ketones and aromatic alcohols
01/12/1982US4310465 Oxidation in a nitrosodisulfonate quaternary ammonium salt
01/05/1982US4309281 Adsorption of paraffin from mixture with aromatic hydrocarbon by zeolite zsm-110
12/1981
12/29/1981US4308407 Catalytic hydrogenation of halomethyl phenol to cresol
12/29/1981US4308406 Adding a hydroxycarboxylic acid or ester
12/29/1981US4308405 Bisphenol a from phenol and acetone, acid ion exchange resin, circulation
12/29/1981US4308404 From phenol and acetone in presence of acidic ion exchange resin
12/29/1981US4308112 Process for the isolation of pyrocatechol and hydroquinone
12/29/1981US4308110 Continuous rectification of hydroquinone, resorcinol
12/22/1981US4307024 1,1,1-Triaryl-2,2,2-trifluoroethanes and process for their synthesis
12/15/1981US4306106 Conversion of polar compounds using a ZSM-5 zeolite catalyst
12/15/1981US4306098 Novel manufacture of 2,4,5-trichlorophenol
12/09/1981EP0041441A1 Process for the meta-hydroxylation of alkyl phenols and their ethers in super acids
12/09/1981EP0041440A1 Isomerisation of ortho- and para-homophenols or their ethers to the corresponding metabromophenols or ethers
12/08/1981US4304943 Conversion of alkyl and aryl hydroxy compounds producing aldehyde, alcohol and ketone using manganese oxide/nickel oxide/magnesium oxide catalysts
12/08/1981US4304899 Polycarbonate compositions having improved barrier properties
12/01/1981CA1113504A1 Preparation of alkylphenols
12/01/1981CA1113463A1 3-(2-hydroxy-4-(substituted)phenyl) azacycloalkanes and derivatives thereof as analgesic agents and intermediates therefor
11/1981
11/25/1981EP0040452A1 Method for the preparation of substituted or unsubstituted phenol and catalysts therefor
11/24/1981US4302616 Method for making alkali metal bisphenoxide salts and bisimides derived therefrom
11/24/1981CA1113121A1 Process for preparing pyrogallol
11/17/1981US4301311 Process for the preparation of dicyclopentylene [2,2'-bis(4-alkyl-6-t-butylphenols)]
11/17/1981US4301308 Flowing gaseous methanol and phenol through a fluidized bed of gamma-alumina
11/17/1981US4301307 Process for the hydroxylation of aromatic compounds
11/17/1981US4301305 Continuous process for preparation of dian
11/10/1981US4300015 Catalysts for parafin-olefin alkylation
11/10/1981US4300000 Purification
11/10/1981US4299691 Removal of phenols from phenol-containing streams
11/03/1981US4298765 Purification of phenol with reduced energy consumption
10/1981
10/28/1981EP0038377A1 Process for the synthesis of ortho-cresol, 2,6-xylenol and 2,3,6-trimethyl phenol
10/27/1981US4297518 Decomposition of cumene hydroperoxide with a homogeneous catalyst
10/27/1981US4297284 Preparation of 2,3-dihydro-2,2-dimethyl-7-hydroxybenzofuran
10/27/1981CA1111452A1 Process for purification of crude resorcinol
10/21/1981EP0037856A1 Enhanced distillation of cyclohexanol from phenol with additional cyclohexanone feed
10/20/1981US4296260 Process for the preparation of phloroglucinol
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