Patents
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Patents for C07C 46 - Preparation of quinones (1,836)
06/1985
06/26/1985EP0146145A2 Naphthalene anti-psoriatic agents
06/25/1985US4525361 Aralkyl carboxylic acid compounds in compositions for potentiating immuno activity
06/25/1985CA1189522A1 SYNTHESIS OF OPTICALLY ACTIVE D-.alpha. TOCOPHEROL
06/11/1985US4522757 Process for oxidizing a phenol to a p-benzoquinone
05/1985
05/28/1985US4519948 Process for oxidizing a phenol to a p-benzoquinone
05/21/1985US4518784 Cyclic compounds
05/08/1985EP0140492A1 L-arginine isoxicamate
05/08/1985EP0023924B1 Tetraalkyl phosphonium substituted phosphine and amine substituted transition metal complexes
05/07/1985US4515969 Cyclic compounds
04/1985
04/09/1985US4510321 Autoxidative cleavage of ketones in the presence of pulverized alkali metal hydroxide
04/09/1985US4510090 Chromic acid oxidation of phenanthrene by controlled addition of sulfuric acid
04/03/1985EP0024091B1 Hydroformylation process and novel transition metal catalysts
03/1985
03/26/1985US4507241 Method for the hydrocarbylation of naphthoquinone derivatives
03/26/1985US4507240 Process for purifying crude monochloro- and monobromoanthraquinone
03/13/1985EP0134016A2 Process for the preparation of anthracyclinones
02/1985
02/26/1985US4501700 Methylation an hydroxyketone
02/13/1985EP0132741A1 Process for the production of compounds of the vitamin K series and of ubichinones, and intermediate compounds
01/1985
01/29/1985US4496447 Aromatic-aliphatic ketones useful as photoinitiators
01/22/1985US4495104 Quinone carboxylic acids and ester derivatives
01/02/1985EP0129615A1 Process for the preparation of bromoanthraquinones
01/02/1985EP0047781B1 Dye-forming developers
01/01/1985US4491545 Dehydrobenation, oxidation, copper catalyst
12/1984
12/27/1984EP0129044A1 Synthesis of (+)-4-demethoxydaunomycinone
12/18/1984US4489206 Synthesis of (+)-4-demethoxydaunomycinone
12/18/1984US4489096 Antiasthma, antiallergen
12/12/1984EP0127888A1 Process for the production of 2,3,5-trimethylbenzoquinone
12/05/1984EP0127551A2 Process for the cyclization of orthobenzoylbenzoic acid
12/04/1984US4486349 Process for preparing para-quinone or ortho-quinone derivatives, possibly alkoxylated or aryloxylated, respectively from the corresonding hydroquinone or pyrocatechic derivatives
11/1984
11/28/1984EP0126552A2 Process for producing carbonyl compounds
11/28/1984EP0126319A2 Purification of alkylated anthraquinones
11/28/1984EP0077334B1 Method for the oxidation of reactive aromatics
11/27/1984US4485117 Antiprotozoal compounds
11/13/1984US4482756 Catalytic oxidation of phenol, then hydrogenation
11/13/1984US4482754 Oxidation of biphenols
11/13/1984US4482493 Reacting phenol with hydrogen peroxide in the presence of a ruthenium catalyst
11/13/1984US4482492 Preparation of vitamins K3 and K4 and derivatives
11/13/1984US4482438 Method of performing a chemical reaction
11/08/1984WO1984004300A1 Purification of alkylated anthraquinones
10/1984
10/31/1984EP0123238A2 Naphthoquinone derivatives
10/24/1984EP0122448A1 Tetra-substituted P-benzoquinones, their preparation and use
10/23/1984US4478752 Process for oxidizing phenol to p-benzoquinone
10/16/1984US4477380 Oxidation process of reactive aromatics with reactivation of the catalyst using potassium permanganate
10/10/1984EP0121466A1 Process for the decomposition of a complex of orthobenzoyl benzoic acid, hydrogen fluoride and boron trifluoride
08/1984
08/29/1984EP0116725A2 Process for the preparation of phenanthrene quinone
08/21/1984US4466981 Naphthalene anti-psoriatic agents
08/08/1984EP0115394A2 Phenothiazone derivatives and analogs
07/1984
07/17/1984US4460678 Tellurium imaging composition including improved reductant precursor and method
07/10/1984US4459234 Phthalic anhydride and benzene, titanium oxide or tin oxide catalyst
07/03/1984CA1170257A1 Process for the purification of anthraquinone
06/1984
06/20/1984EP0111120A2 Process for the preparation of anthraquinones
06/13/1984EP0110369A1 Process for the purification of raw monochloro and monobromo anthraquinone
06/12/1984CA1169056A1 Process for oxidizing aromatic substances
05/1984
05/29/1984CA1168242A1 Quinone compounds, their production and use
05/22/1984US4450111 Oxidation with hypochlorite
05/09/1984EP0107806A1 Process for preparing optically active derivatives of hydroquinone and d-alpha-tocopherol
05/08/1984US4447656 Solvent system for oxidative coupling process
05/08/1984CA1167034A1 Process for the production of quinizarine derivatives which are disubstituted in the 5- and 8-positions by hydroxyl or chlorine
05/02/1984EP0107512A1 1,4-Acyloxynaphthalene derivatives, topical compositions containing them, methods for their preparation, and intermediates therefor
05/02/1984EP0107427A1 Process for oxidizing a phenol to a p-benzoquinone
05/02/1984EP0107176A1 Method for preparing a benzoquinone
05/01/1984US4446070 Catalytic oxidation of polynuclear aromatic hydrocarbons
04/1984
04/25/1984EP0106341A2 Physiologically active substance P-23924, its production and use
04/24/1984CA1166263A1 Process for producing 1,4-naphthoquinone
04/17/1984US4443604 Oxidation resistance, dispersants
04/11/1984EP0105067A2 Process for oxidizing phenol to p-benzoquinone
04/10/1984US4442127 Naphthoquinone anti-psoriatic agents
04/10/1984US4442036 Bivalent copper catalyst
04/04/1984EP0104937A2 Process for oxidizing a phenol to a p-benzoquinone
03/1984
03/21/1984EP0103361A1 Quinone compounds, their production and use
03/20/1984US4438284 Cobalt-containing catalyst
03/20/1984US4438037 Anthraquinones from anthracenes
03/20/1984CA1163850A1 Developer solution containing phenolic or naphtholic compounds which form dyes on oxidation
03/14/1984EP0102762A2 Method of performing a chemical reaction
03/13/1984US4436753 Cardiovascular disorders
02/1984
02/21/1984US4433159 Oxidation of phythol, reduction, hydrogenation, and cyclization
01/1984
01/11/1984EP0098020A2 Imaging film and film-forming composition, method for recording electromagnetic radiation, quinone compounds and method of synthesizing quinone compounds
01/03/1984US4424389 Synthesis of 6-hydroxychroman-2-methanol derivatives
12/1983
12/27/1983CA1159451A1 Photographic material suited for use in diffusion transfer photography
12/06/1983US4419368 Naphthoquinone anti-psoriatic agents
11/1983
11/22/1983CA1157469A1 Process for the preparation of anthraquinone
11/16/1983EP0093880A1 Process for the preparation of 2,3,5-trimethyl-p-benzoquinone
11/09/1983EP0093696A2 Benzo-1,4-chinones
11/09/1983EP0093540A2 Production of Hydroquinone
11/08/1983CA1156666A1 Manufacture of 1,4 naphtoquinone
10/1983
10/11/1983US4409391 Reacting an polyphenolic alcohol with an aromatic dialdehyde in presence of aromatic boronic acid
10/04/1983US4407757 Immunology agent, muscle relaxant
09/1983
09/20/1983US4405523 Process for preparation of benzophenone, anthraquinone and O-dibenzoylbenzene
09/13/1983US4404140 Manufacture of alkylanthraquinones
08/1983
08/23/1983US4400324 Process for preparing anthraquinone
08/09/1983US4397785 Preparation of 3,3'5,5'-tetratertiary butyl diphenoquinone
07/1983
07/27/1983EP0084448A2 Process for oxidizing phenol to p-benzoquinone
07/20/1983EP0083791A2 Shaped articles containing silica, processes for their preparation and their use
07/19/1983US4394315 Hypohalite oxidation of hydroquinones, quaternary ammonium phase transfer catalyst
07/12/1983US4393221 Process to produce hexahydronaphthacene derivatives
07/12/1983US4393075 Quinone compounds and their use in suppressing the production of SRS-A in mammals
06/1983
06/07/1983US4387054 Process for the preparation of quinizarin
05/1983
05/18/1983EP0078922A1 Process for the preparation of vitamins K3 and K4 and of their derivatives
05/03/1983CA1145761A1 Quinone derivatives
04/1983
04/27/1983EP0077551A2 1.4-Naphthoquinones, methods for their preparation, pharmaceutical and veterinary formulations thereof
04/27/1983EP0077334A1 Method for the oxidation of reactive aromatics.
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