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)
10/1981
10/20/1981US4296122 2,3-Dihydro-6,7-disubstituted-5-(acyl)benzofuran-2-carboxylic acids
10/13/1981US4294996 Method of reducing formation of chlorinated dioxins in manufacture of chlorinated phenols
10/13/1981US4294995 Method and catalyst for making bisphenol
10/13/1981US4294994 Spray drying
10/13/1981US4294993 Crystallized from toluene
10/06/1981CA1110261A1 3-¬2-hydroxy-4-(substituted)phenyl|-cycloalkanone and cycloalkanol analgesic agents and intermediates therefor
10/01/1981WO1981002797A1 Dye-forming developers
09/1981
09/29/1981US4292450 Using a sulfonated divinylbenzene-styrene copolymer catalyst at low temperatures to react an olefin yielding a tertiary-alkyl group derivative
09/29/1981CA1109894A1 Method for preparing sterically hindered bis- or polyphenols
09/23/1981EP0036378A1 Process for the preparation of chlorophenols
09/22/1981US4291178 Preparation of ortho-hydroxybenzyl alcohols
09/22/1981US4290924 Catalyst composition useful for preparing 2,6-xylenol
09/16/1981EP0035965A2 Process for the preparation of 2.2'-dihydroxybiphenyl compounds
09/15/1981US4289587 Stabilization of chlorinated phenols
09/08/1981USRE30739 Anorexic chromans
09/08/1981US4288640 Cocurrent flow over packed column containing solid catalyst
09/08/1981US4288565 Storable, solid mixture for the preparation of plastics which are based on epoxide resin and are stable to hydrolysis, the use of this mixture for the preparation of such plastics and plastics obtained in this way
09/08/1981US4288296 Monohydric primary alcohols as stabilizers
09/08/1981CA1108552A1 Extractive distillation recovery process
09/01/1981US4287373 Perbromination of phenol and diphenyl ether at elevated temperature using bromine as the reaction medium
09/01/1981US4287038 By irradiating the compounds to decompose the 2,3,7,8-tetrachlorodibenzo-p-dioxin contaminant
09/01/1981CA1108185A1 Process for preparing hindered phenolic aldehydes
08/1981
08/31/1981EP0027796A4 Chroman and chromanon-4 derivatives, process for their preparation, antioxidant compositions containing same and their use for stabilizing edible fats and oils.
08/25/1981US4285775 Apparatus for the recovery of xylenol and/or paraffin
08/25/1981CA1107762A1 Acid oxidation process
08/18/1981US4284830 Monohalogenation of substituted phenol
08/18/1981US4284829 Hydroxyalkyl and oxoalkyl substituted phenols as analgesics and sedatives
08/18/1981US4284581 Lithiumaluminium hydride compounds
08/11/1981US4283574 Process for the synthesis of 2,6-xylenol and 2,3,6-trimethylphenol
08/11/1981US4283573 Reacting phenol with an alkylating agent in the presence of a zeolite catalyst
08/11/1981US4283572 In the presence of a dehydrated sulfonated ion exchange resin
08/11/1981US4283571 M-cresol
08/11/1981US4283570 Pretreatment of m-diisopropylbenzene hydroperoxide and removal of h2o, acid cleavage
08/11/1981US4283569 Hydroxyalkyl and oxoalkyl substituted phenols as analgesics and sedatives
08/11/1981US4283568 Process for the recovery of phenol from a reaction mixture resulting from the acid cleavage of cumene hydroperoxide
08/11/1981US4283567 Method for recovering resorcinol
08/11/1981US4283566 Process for obtaining halogenated diphenols
08/11/1981US4283514 Chemicals for termination of polyvinylchloride polymerizations
08/05/1981EP0032976A1 A method for separating 2,6-xylenol from admixtures with meta-para-cresols, a method for methylating meta-para-cresols, and a catalyst
08/05/1981EP0032974A1 A method for the synthesis of 2,3,6-trimethylphenol
08/04/1981US4282391 Continuous process for producing halogenated diphenols
08/04/1981US4282390 Parasiticides
08/04/1981CA1106412A1 Metal phenates
07/1981
07/28/1981US4281204 Alkylation, decarboxylation to cyclize
07/23/1981WO1981002012A1 New 2-amino methyl-6-halogenophenols,preparation thereof and pharmaceutical compositions thereof
07/22/1981EP0032255A1 Process for the direct neutralisation of a reaction mixture resulting from the acid cleavage of an alpha-hydroxy derivative of an alkyl-substituted aromatic hydrocarbon and the removal of the formed salt
07/21/1981US4280012 Detoxification using acetylene or hydrazine
07/21/1981US4279829 Metal complex catalysts
07/14/1981US4278816 Process for preparing phenols and thiophenols
07/14/1981US4278589 2-[2-Hydroxy-3,5-di-(α,α-dimethylbenzyl)phenyl]-2H-benzotriazole and stabilized compositions
07/14/1981US4278554 Antioxidant
07/14/1981CA1104820A1 Pressure sensitive recording papers
07/09/1981WO1981001913A1 Method for fabricating igfet integrated circuits
07/08/1981EP0031676A1 Selective sorption by zeolites
07/08/1981EP0031530A1 Process for producing pyrogallol
07/07/1981US4277630 Catalyst and process for producing aromatic hydroxy compounds
07/07/1981US4277629 Multistage, using sulfuryl chloride; liquid phase, by-product inhibition, avoidance of solidification
07/07/1981US4277628 Phenol recovery from bisphenol-A waste streams
07/01/1981EP0031230A1 A process for recovery of resorcinol from aqueous resorcinol solution containing hydroquinone
06/1981
06/30/1981CA1103866A1 Hollow fiber membranes of ethylene copolymers and process for use
06/24/1981EP0030701A1 Process for the manufacture of 1-(aralkyl)-2-naphthols
06/23/1981US4275249 Alumina alkylation catalyst containing fluoride or chloride catalyst
06/23/1981US4275248 Catalytic alkylation of phenol with propylene using fluorided alumina as catalyst
06/23/1981US4275247 Process for preparing an organic compound
06/23/1981US4275246 Separation of phenols
06/23/1981US4275245 Mixtures of controlled quantities for producing fireproof polyesters or polycarbonates
06/23/1981US4275201 Aryl substituted diketones
06/23/1981US4275004 High caustic coupling process for preparing substituted 2-nitro-2'-hydroxyazobenzenes
06/16/1981US4273891 Hydrocarbon-substituted methylol phenols
06/16/1981US4273623 Process for recovery of resorcin
06/16/1981CA1103277A1 Aqueous recovery of hydroquinone
06/10/1981EP0030088A1 Co-production of 2-alkanones and phenols
06/09/1981US4272636 Blending with a clycol ether
06/09/1981US4272635 Production of alkali metal phenates
06/09/1981US4272326 Enhanced distillation of cyclohexanol from phenol with additional cyclohexanone feed
06/09/1981CA1102822A1 Indan-5-yl n-alkyl-carbamic acid esters and their use as plant protection agents
06/03/1981EP0029695A1 Removal of phenols from phenol-containing streams
06/02/1981US4271322 Process for preparation of phenols
06/02/1981US4271091 Oxides of molybdenum, tungsten, vanadium and/or antimony
06/02/1981US4271083 6-Hydroxy-1,4-benzoquinone compounds
05/1981
05/27/1981EP0029333A1 Long-chain alkylphenols
05/26/1981US4270010 Heating an aqueous solution of p-aminophenol or a salt with an organic sulfonic acid; solvent extraction; from nitrobenzene reduction
05/26/1981US4270003 Reacting a 3-magne
05/26/1981US4269735 Magnesium oxide catalyst
05/26/1981CA1101891A1 Process for the preparation of resorcinol or alkylsubstituted derivatives thereof
05/20/1981EP0028931A1 Process for producing resorcinol
05/20/1981EP0028910A1 Improved process for producing phenolic compounds from aralkyl hydroperoxides
05/19/1981US4268694 Process for preparing pyrogallol
05/19/1981US4268647 Organic materials having meta, para-isopropylidene diphenoxy units and method
05/19/1981CA1101436A1 Process for the preparation of polyhydric phenols
05/13/1981EP0028522A1 Process for producing phenolic compounds
05/12/1981US4267394 Phenol alkylation
05/12/1981US4267392 Process for obtaining para-cresol and meta-cresol from a mixture of methylated and ethylated phenols containing meta-para-cresol
05/12/1981US4267391 Process for obtaining para-cresol and meta-cresol from a mixture of methylated and ethylated phenols characterized by urea clathration of metal-cresol
05/12/1981US4267390 Process for obtaining para-cresol and meta-cresol from a mixture of methylated and ethylated phenols characterized by selective complexation with calcium bromide and sodium acetate
05/12/1981US4267389 Process for separating para-cresol from a mixture of methylated and ethylated phenols
05/12/1981US4267380 Decomposition of cumene hydroperoxide using a Lewis acid catalyst
05/12/1981US4267379 Decomposition of cumene hydroperoxide and recovery of boron trifluoride catalyst
05/12/1981US4267378 2,2-Dialkoxy-6-chlorocyclohexanones
05/12/1981CA1100999A1 Process for preparing 2-allyl phenol
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