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) |
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05/05/1992 | US5110994 Catalytic condensation of fluorenone with phenol |
05/05/1992 | US5110983 Hexafluoroisopropyl-containing monomers, process for their preparation and their use |
05/05/1992 | CA1300156C Process for the iodination of hydroxyaromatic and aminoaromatic compounds |
04/30/1992 | WO1992007052A1 Process for preparing alkyl phenol-sulfur condensate lubricating oil additives (pt-790) |
04/30/1992 | WO1992006936A1 Preparation of linear alkyl aromatics (pt-808) |
04/22/1992 | EP0481287A2 Method for the production of substituted cyclohexylidenebisphenols |
04/21/1992 | US5107049 Alkylating aromatic hydrocarbon with olefinic oligomer; zeolite catalyst; heat and oxygen resistant lubricants |
04/21/1992 | US5107035 Process for high purity tetrabromobisphenol-A |
04/15/1992 | EP0480800A1 Process for hydroxylating of phenolic compounds |
04/15/1992 | EP0480658A2 Phenolic resins |
04/15/1992 | EP0480308A1 Method for separating resorcinol from resorcinol precondensates |
04/15/1992 | EP0480237A1 Particular dihydroxydiphenylbicycloalkanes, their preparation and their use for the preparation of high molecular polycarbonates |
04/14/1992 | US5105029 Process for recovering a lower alcohol from a catechol-lower alcohol reaction product solution |
04/14/1992 | US5105027 Condensation of phenol with acetone |
04/14/1992 | US5105026 Process for preparing a bisphenol |
04/14/1992 | US5104939 Polymer mixture which comprises a polyamide, a polyphenylene ether and an agent to improve the impact strength |
04/09/1992 | CA2052904A1 Process for the removal of resorcinol from resorcinol precondensates |
04/08/1992 | EP0479292A1 Process for producing aromatic hydroxy compound |
04/08/1992 | CN1060088A Method of purifying bisphenol-a |
04/07/1992 | US5102962 Phenolic polymer and production thereof |
04/01/1992 | EP0478311A2 Preparation of 6-Substituted 2-Vinylnaphthalene |
03/27/1992 | CA2052185A1 Preparation of 6-substituted-2-vinylnaphthalene |
03/25/1992 | EP0476608A1 Substituted phenols |
03/25/1992 | EP0476493A1 Acyclic tocotrienol analogs in the treatment of hypercholesterolemia and hyperlipidemia |
03/24/1992 | US5099076 Method for preparing p,p'-biphenol |
03/24/1992 | US5098945 Stabilizers for organic materials against heat, oxidation and actinic degradation |
03/24/1992 | US5098879 Catalyst for preparation of ortho-alkylated phenols |
03/24/1992 | US5098531 Electrochemical synthesis of 2-aryl-hydroquinones |
03/18/1992 | EP0475893A1 Method of purifying bisphenol-A |
03/18/1992 | EP0475629A1 Process for the purification of 4-acetoxystyrene |
03/17/1992 | US5097080 By debutylation of tetra-tertiary butyl dihydroxybiphenyl in solvent using acid catalyst |
03/17/1992 | US5097079 Zinc-containing ortho-alkylation catalyst precursor and catalyst, and process of use in alkylation of phenols |
03/17/1992 | US5097078 Catalytic hydroxylation of phenols/phenol ethers |
03/17/1992 | CA1297487C Preparation of hydrocarbyloxymagnesium halides |
03/15/1992 | CA2050514A1 Acyclic tocotrienol analogs in the treatment of hypercholesterolemia and hyperlipidemia |
03/11/1992 | EP0474303A1 Process for the preparation of cyclopentane derivatives and intermediates therefor |
03/11/1992 | EP0474302A1 Cyclohexenol derivatives |
03/10/1992 | US5095144 Process for dimerizing aromatic halogen compound |
03/10/1992 | US5094722 Distillation, melt crystallization |
03/05/1992 | WO1992003400A1 Method of crystallizing bisphenol a having phenol added thereto |
03/05/1992 | WO1992003399A1 Method of preparing bisphenol a |
03/03/1992 | US5093514 Base-catalyzed dehydration of substituted cis-1,2-dihydroxycyclohexa-3,5-dienes |
03/01/1992 | CA2049241A1 Process for the purification of 4-acetoxystyrene |
02/26/1992 | EP0472395A1 Process for producing tetrabromobisphenol A. |
02/25/1992 | US5091594 Process for the production of 2,6-di-tert-butylphenol |
02/25/1992 | US5091592 Process for preparing 4,4'-dihydroxybiphenyl |
02/25/1992 | US5091591 Ammonium, alkali, alkaline earth metal or zinc salt of aliphatic mono ro dicarboxalic acid as stabilizers |
02/25/1992 | US5091499 Process for preparing phenolic formaldehyde resole resin products derived from fractionated fast-pyrolysis oils |
02/25/1992 | US5091058 Reacting excess of phenol with alpha-methyl styrene in presence of acid catalyst; neutralization |
02/19/1992 | EP0471498A2 Optical resolution method |
02/12/1992 | EP0470669A2 Preparation of fluorophenols, fluorohalophenols, N-acylfluoroanilines, and N-acylfluorohaloanilines |
02/11/1992 | US5087772 Reacting 4-acetoxystyrene with an alcohol in presence of a basic catalyst |
02/11/1992 | US5087771 Process for the purification of monotertiarybutyl hydroquinone |
02/11/1992 | US5087769 Preparation of 6-substituted-2-vinylnaphthalene |
02/11/1992 | US5087768 Esterification, crystallization and recovering biphenyl diester and converting diester to dihydroxybiphenyl |
02/11/1992 | US5087767 From acetone and phenol, removing water generated with pervaporation with selectively water permeable membrane |
02/11/1992 | US5087766 Reacting phenol with allyl halide; claisen rearrangement |
02/07/1992 | CA2048286A1 Optical resolution method |
02/05/1992 | EP0470000A1 Allylation reagent and method of synthesis using it |
02/05/1992 | EP0469689A2 Process for the production of a bisphenol |
01/29/1992 | EP0468477A1 Process for producing dihydric phenols |
01/27/1992 | CA2047629A1 Process for producing dihydric phenols |
01/23/1992 | WO1992000943A1 Process for purifying bisphenol-a |
01/22/1992 | EP0467847A1 Polyarylene ether with tetraphenylethylene units |
01/22/1992 | CN1058014A Polymerizable antioxidant and olefin polymers containing bound antioxidant |
01/21/1992 | US5082978 With p-dimethoxybenzene and acid catalyst |
01/21/1992 | CA2047381A1 Polyarylene ethers containing tetraphenylethylene units |
01/15/1992 | EP0466545A1 Zeolites based on silica and oxides of tetravalent elements, method for their synthesis and their use |
01/15/1992 | EP0466263A2 Polymerizable antioxidant and olefin polymers containing bound antioxidant |
01/15/1992 | EP0370054B1 Catalyst composition and method for selective dehydrogenation |
01/14/1992 | US5081249 From gaseous fluorine and solution of pyridinesulfonate |
01/14/1992 | US5081087 Olefin polymerization catalysts |
01/14/1992 | US5080871 Apparatus for alkylation of organic aromatic compounds |
01/11/1992 | CA2046487A1 Polymerizable antioxidant and olefin polymers containing bound antioxidant |
01/08/1992 | EP0464472A2 Partially fluorinated biphenyls, method of making them and their application |
01/08/1992 | EP0464154A1 Alkylation of aromatics. |
01/02/1992 | EP0287675B1 Process for producing biphenols |
12/27/1991 | EP0259450B1 Process for the preparation of tribromotetramethylbiphenol and related compounds |
12/24/1991 | USRE33779 Preparation process of 4,4-dihydroxybiphenyl |
12/24/1991 | US5075511 Process and alkylmercaptoamine catalyst for production of bisphenol-A |
12/24/1991 | US5075496 Manufacture of 2,6-hydroxynaphthoic acid |
12/18/1991 | CN1015104B Deprotection of allylic esters and ethers |
12/17/1991 | US5073360 Bridge/lamellar metallic oxides |
12/17/1991 | CA1293266C Synthesis of (1-phenyl-ethyl) hydroquinone |
12/17/1991 | CA1293265C Preparation process of 4,4'-biphenol, precursor of same and preparation process of precursor |
12/12/1991 | WO1991018858A1 Process for para-methylolating phenolic compound |
12/11/1991 | EP0460240A1 Catalyst for hydrogenation, dehydrosilylation or hydrosilylation, and its use |
12/11/1991 | EP0452411A4 Acid catalyzed process |
12/10/1991 | US5072055 Dealkylated in ortho position |
12/10/1991 | US5072054 Alkylating phenolic compound with olefin, alcohol, or alkyl ha lide using synthetic porous crystalline catalyst having specif ic X-ray diffraction pattern |
12/10/1991 | US5072017 Process for the preparation of p-substituted o-benzylphenols |
12/04/1991 | EP0459572A2 Process for purifying phenol |
12/04/1991 | EP0459267A2 Process for the preparation of pure 4,4'-dihydroxybiphenyl |
12/04/1991 | EP0458965A1 Process for the preparation of vinyl ethers. |
12/04/1991 | CN1056679A Method of extracting fresh-keeping agent from tea |
12/03/1991 | US5070118 Radiation-self-sensitized silicone polymers |
12/02/1991 | CA2043721A1 Process for purifying phenol |
11/27/1991 | EP0458684A1 Reagent and process for the perfluoroalkylation of nucleophilic substrates by sodium perfluoroalkanesulfinates in an oxidising medium |
11/26/1991 | US5068463 Oxidative bromination of alkylidinediphenols with a bromination agent and hydrogen peroxide in the presence of a solvent |
11/26/1991 | US5068455 3-(2-hydroperoxy-2-propyl)phenol and method of producing resorcinol using the same |