Patents
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Patents for C07C 50 - Quinones (2,441)
05/1984
05/23/1984EP0109360A1 Metallic conductive (2-fluoro-5,6,11,12-tetraselenotetracene)2-bromide, process for the preparation thereof and the use thereof
05/22/1984US4450111 Oxidation with hypochlorite
05/15/1984US4448724 Synthesis of 4-demethoxydaunomycinone
05/09/1984EP0107806A1 Process for preparing optically active derivatives of hydroquinone and d-alpha-tocopherol
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
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
04/04/1984EP0104937A2 Process for oxidizing a phenol to a p-benzoquinone
03/1984
03/21/1984EP0103381A1 Substituted anthra(1,9-cd)pyrazol-6(2H)-ones
03/21/1984EP0103361A1 Quinone compounds, their production and use
03/20/1984CA1163850A1 Developer solution containing phenolic or naphtholic compounds which form dyes on oxidation
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
11/08/1983US4414226 1,4-Naphtoquinone derivatives and their use in treating coccidiosis
11/08/1983CA1156666A1 Manufacture of 1,4 naphtoquinone
10/1983
10/26/1983EP0092136A1 Benzoquinone derivatives and production thereof
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
09/20/1983US4405522 Anthracycline synthesis
08/1983
08/24/1983EP0086430A1 Anthracyclinone derivatives and process for their production
08/16/1983CA1152064A1 Process for producing 1,4,4a,9a- tetrahydroanthraquinone compound
07/1983
07/27/1983EP0084448A2 Process for oxidizing phenol to p-benzoquinone
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
04/27/1983EP0077550A2 1.4-Naphthoquinones, methods for their preparation and veterinary formulations thereof
04/27/1983EP0077334A1 Method for the oxidation of reactive aromatics.
04/05/1983US4379092 Process for the preparation of anthraquinone and its substituted derivatives
03/1983
03/01/1983CA1142177A2 Anthracycline synthesis
02/1983
02/22/1983US4374984 Aromatic-aliphatic ketones useful as photoinitiators
02/08/1983CA1140923A1 Antitumor agents
02/01/1983US4371604 Photographic material suited for use in diffusion transfer photography
01/1983
01/26/1983EP0070665A1 Process for oxidising phenol to P-benzoquinone
01/25/1983US4370497 Oxidation process using tellurium oxide catalysts
01/04/1983CA1138861A1 Process for producing anthraquinone
12/1982
12/14/1982CA1137502A1 Process for purifying naphthoquinone
12/07/1982US4362668 Substituted ortho-quinone dimer
11/1982
11/24/1982EP0065368A1 A process for preparing chromans
11/23/1982CA1136159A1 Method for the purification of dicarboxylic acids produced by fermentation
11/16/1982CA1135713A1 Quinone derivatives
11/09/1982US4358461 Antiallergic agent
11/02/1982CA1134802A1 Coated catalysts and their preparation
10/1982
10/28/1982WO1982003625A1 Method for the oxidation of reactive aromatics
10/26/1982CA1134192A1 Diffusion transfer photographic material containing a quinone-type compound with photographically useful group and ballast group
10/19/1982US4355026 Microbiocides, antitumor
10/12/1982US4354047 Nickel catalysts for oxidative coupling of phenols
09/1982
09/07/1982CA1131219A1 Process for preparing mononitro-1,2,3,4-tetrahydro- anthraquinones
09/01/1982EP0058945A2 A process for preparing an optically active d-alpha-tocopherol and compounds for its preparation
08/1982
08/24/1982US4346103 Multiple sclerosis
08/18/1982EP0058057A1 Method of producing quinone derivatives
08/17/1982US4345016 Homo- or copolymers of unsaturated sulfonyl hydroqinones as scavengers for oxidized developers; antifogging agents
08/03/1982CA1128953A1 Method for preparing para-benzoquinones
07/1982
07/20/1982US4340569 Treatment of carbonylation residues
07/20/1982EP0047781A4 Dye-forming developers.
07/14/1982EP0055951A1 Process for the preparation of anthraquinone and its substituted derivatives
06/1982
06/22/1982CA1126267A1 Improved process for preparing anthraquinone in an aqueous solution
06/22/1982CA1126008A1 Rust inhibiting coating compositions
06/15/1982US4335050 Process for the preparation of the 5- and 6-nitro derivatives of 1,2,3,4-tetrahydro-anthraquinone from 1,2,3,4,4a,9a-hexahydro-9,10-anthracene-dione
06/02/1982EP0052853A1 Bis-aminomethyl-anthraquinone derivatives, process for their manufacture, compositions containing them and their use
05/1982
05/25/1982CA1124234A1 Anthracycline synthesis
04/1982
04/14/1982EP0049403A2 Novel anthracycline derivative, process for production thereof, and pharmaceutical composition comprising said compound
04/06/1982US4323431 Controlled pressure in a continuous rectification process
04/06/1982CA1121348A1 Method for preparing 5 and 6-nitro derived 1,2,3,4- tetrahydroanthraquinone from 1,2,3,4,4a,9a-hexahydro- 9,10 anthracenedione
03/1982
03/24/1982EP0047781A1 Dye-forming developers.
03/17/1982EP0047323A1 1,4-naphthoquinone derivatives and use thereof
02/1982
02/23/1982US4316985 Cyclic compounds
02/23/1982CA1118797A1 Catalytic oxidation/decarbonylation of polynuclear aromatic compounds
02/16/1982CA1118355A1 Compsitions containing alkannin derivatives for treating skin disorders
02/02/1982US4313887 Anthraquinone dyes
01/1982
01/26/1982US4312811 Dehydrochlorination of ortho-benzoylbenzoic acid chloride
01/13/1982EP0043435A1 Intermediate products occurring in anthracycline synthesis
01/12/1982US4310465 Oxidation in a nitrosodisulfonate quaternary ammonium salt
12/1981
12/29/1981US4308211 Octahydroanthraquinone, melt, catalyst of group 8 metal or oxide, dehydrogenation
12/15/1981US4305879 Process for producing a 2-tertiary-alkyl substituted anthraquinones
11/1981
11/17/1981US4301243 Photographic recording material
10/1981
10/28/1981EP0038674A1 Medicinal composition for treatment of allergic diseases
10/21/1981EP0038160A1 Quinone compounds, their production and use
10/21/1981EP0038092A1 Photographic material suited for use in diffusion transfer photography
10/01/1981WO1981002797A1 Dye-forming developers
09/1981
09/30/1981EP0036502A1 2-Alkyl-5-hydroxy-1,4-naphthoquinones, process for their manufacture and pharmaceutical preparations containing these compounds
09/22/1981CA1109481A1 Process for the preparation of para-benzoquinone
09/17/1981WO1981002574A1 1,4-naphthoquinone derivatives,process for their preparation,and use thereof
09/15/1981US4289706 By-product inhibition
08/1981
08/18/1981US4284576 And naphthalene and phthalic anhydride, reacting with oxygen
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