| Patents for C07C 46 - Preparation of quinones (1,836) |
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| 12/29/1992 | CA1312086C Benzoquinone derivatives, their production and use |
| 10/13/1992 | US5155132 Naphthalene lipoxygenase-inhibiting agents |
| 10/07/1992 | CN1018546B Reduction of carboxylic esters |
| 10/06/1992 | US5153339 Oxidizing naphthalene and phthalic anhydride solvent extraction with hydrocarbon |
| 09/29/1992 | US5151532 Process for the production of high-purity tetrachloro-1,4-benzoquinone |
| 09/23/1992 | CN1064673A Reduction of carboxylic esters |
| 09/22/1992 | US5149880 Nitrogen-containing aromatic heterocyclic ligand-metal complexes and their use for the activation of hydrogen peroxide and dioxygen in the reaction of organic compounds |
| 09/22/1992 | US5149850 Chlorination of hydroquinone with chlorine gas in hydrochloric acid, diluting with water and heating |
| 09/22/1992 | US5149849 Process for the preparation of quinhydrones |
| 09/22/1992 | US5149834 Anticholesterol agent and enzyme inhibitors, for curing arteriosclerosis |
| 09/15/1992 | US5147628 Process for producing alkyltetrahydroanthrahydroquinones and working solutions containing them for producing hydrogen peroxide by the anthraquinone process |
| 08/18/1992 | US5140044 Antitumor and -carcinogenic agents; protein kinase C inhibitors |
| 07/28/1992 | US5134161 Enzyme inhibitors for skin disorders, antiinflammatory agents |
| 07/07/1992 | CA1304747C Naphthalene anti-psoriatic agents |
| 06/17/1992 | DE3448313C2 New avarone and avarol cpds. |
| 06/10/1992 | EP0489689A1 Photochromic naphthacenequinones, process for their production and their use |
| 06/09/1992 | US5120412 Preparation of hypericin |
| 06/09/1992 | CA1303052C Avarone and avarol pharmaceutical compositions, and process |
| 06/06/1992 | CA2056854A1 Photochromic naphthacenequinones, their preparation and the use thereof |
| 06/02/1992 | US5118823 Oxidation of dihydroxyaromatic compounds to quinones |
| 05/05/1992 | US5110995 Catalytic oxidation of benzene with nitrous oxide |
| 04/30/1992 | WO1992006944A1 Process for the preparation of naphthoquinones |
| 04/29/1992 | EP0482789A2 Benzoquinone compounds |
| 04/26/1992 | CA2054293A1 Benzoquinone compounds |
| 04/21/1992 | US5107004 Friedel-Crafts acylation of neopentylbenzene by phthalic anhydride; cyclization of the 2-(4-neopentylbenzoyl)benzoic acid using an anhydrous acid catalyst |
| 04/21/1992 | US5107003 Preparation of quinones by the ceric-catalyzed oxidation of aromatic diols |
| 04/14/1992 | US5104996 Catalytic oxidation of 2,3,6-trimethylphenol |
| 04/07/1992 | US5103029 Process for preparing 4-demethoxydaunomycinone |
| 03/18/1992 | EP0475272A2 Process for the preparation of 2,3,5-trimethyl-p-benzoquinone |
| 02/25/1992 | US5091558 Topical administeration |
| 02/25/1992 | US5091545 Catalytic oxidation of hydroxy containing aromatic compounds |
| 02/18/1992 | US5089657 Topical antiinflammatory agents |
| 01/14/1992 | US5081270 Preparation of hydroxyanthraquinones |
| 12/24/1991 | US5075463 Preparation of quinones |
| 12/24/1991 | US5075462 Oxidizing aromatic diol with peroxide in inert solvent using c atalyst comprising cerous and cupric carboxylates |
| 10/30/1991 | EP0453949A1 Process for the production of alkyltetrahydroanthrahydroquinone solutions and their use as working solution in the production of hydrogen peroxide by the anthraquinone process |
| 10/29/1991 | US5061718 Benzothiazolylmethoxy compounds, pharmaceutical compositions comprising the same and their use as anti-inflammatory or anti-allergenic agents |
| 10/26/1991 | CA2041159A1 Process for producing alkyltetrahydroanthrahydroquinones and working solutions containing them for producing hydrogen peroxide by the anthraquinone process |
| 10/15/1991 | CA1290760C Reduction of carboxylic esters |
| 10/02/1991 | EP0449629A1 Process of producing anthraquinones in one step |
| 10/01/1991 | US5053548 Biphenyl derivative composition for nerve cell degeneration repairing or protective agent and process for preparing a phenyl derivative contained in the composition |
| 10/01/1991 | US5053432 Antiprotozoa agents; treatment of malaria |
| 09/30/1991 | CA2037020A1 Process of producing anthraquinones in one step |
| 09/17/1991 | US5049236 Lignin derived quinonic compound mixtures useful for the delignification of cellulosic materials |
| 09/11/1991 | EP0445827A2 4-Hydroxytetrahydropyran-2-one derivatives useful as cholesterol and lipid reducing agents |
| 09/11/1991 | EP0445483A1 Catalytic oxidation of hydroxy containing aromatic compounds |
| 09/03/1991 | US5045548 Quinolyl methoxy compounds and their use as antiasthmatic agents |
| 08/20/1991 | US5041572 Oxidation of trimethylphenyl in presence of copper (II) halide catalyst and aliphatic alcohol solvent |
| 08/20/1991 | US5041571 Cooling first reaction of phthalic anhydrides and benzenes over catalyst mixture of hydrogen fluoride and trifluorobro-mine, heating second reaction without separation of chemical intermediates |
| 08/14/1991 | EP0441116A2 Process and intermediates for the manufacture of optically active chroman derivatives |
| 08/07/1991 | CN1013442B Bicyclic compound processes for prepn. thereof and pharmaceutical composition comprising same |
| 08/06/1991 | US5037970 Antitumor agents |
| 07/25/1991 | WO1991010634A1 Nitrogen-containing aromatic heterocyclic ligand-metal complexes and their use for the activation of hydrogen peroxide and dioxygen in the reaction of organic compounds |
| 07/24/1991 | EP0438376A1 Photochromic naphthacenchinones, process for their production and their use |
| 07/19/1991 | CA2034316A1 Photochromic naphthacenequinones, process for their preparation and the use thereof |
| 07/17/1991 | CA2034167A1 Nitrogen-containing aromatic heterocyclic ligand-metal complexes and their use for the activation of hydrogen peroxide and dioxygen in the reaction of organic compounds |
| 07/10/1991 | EP0436474A1 New fluoro-naphtacenediones, their glycosilated derivatives and methods of making them |
| 07/03/1991 | CN1052659A Fluoro-naphthacenediones, their glycosilated derivatives and their manufacture procedures |
| 07/02/1991 | CA1285575C Naphthalene anti-psoriatic agents |
| 06/26/1991 | CN1012953B Synthesis of phenanthrene quinone |
| 06/25/1991 | CA1285280C Quinone derivatives, their production and use |
| 06/19/1991 | EP0432496A2 Preparation of hypericin |
| 06/05/1991 | EP0430434A2 Process for the preparation of fluoroaromatic and fluoroheteroaromatic compounds |
| 06/05/1991 | EP0430164A2 Process for preparation of 2-substituted-1,4-naphthoquinone |
| 06/04/1991 | US5021570 Aqueous solution containing fat-soluble vitamin K |
| 05/14/1991 | US5015745 Ketalization, sulfonylation, amination and diazotization to form a demethoxydaunomycinone |
| 05/14/1991 | CA2029715A1 Fluoro-naphthacenediones, their glycosilated derivatives and their manufacture procedures |
| 05/01/1991 | CN1012495B Quinone derivatives, their production and use |
| 04/24/1991 | EP0423583A1 Process for the preparation of hydroxyanthraquinones |
| 04/23/1991 | CA1283410C Anthraquinoylcarboxylic acid hydrazides, curable compositions and use thereof |
| 04/21/1991 | CA2026904A1 Preparation of hydroxyanthraquinones |
| 04/02/1991 | CA1282420C Process for producing 2-methyl-1,4-naphthoquinone |
| 03/27/1991 | EP0418648A1 4-Hydroxytetrahydropyran-2-ones as well as the corresponding dehydroxy carbon acid derivatives, salts and esters, process for their preparation, pharmaceutical preparations as well as precursors |
| 03/26/1991 | US5002634 Method for the delignification of wood pulp utilizing fused ring quinone compounds prepared from lignin or lignin derived substances |
| 03/19/1991 | US5001282 Method of treating diabetes mellitus with bisphenol derivatives |
| 02/20/1991 | EP0413224A1 Fungicidal agent containing 1,2-naphthoquinones |
| 02/12/1991 | US4992469 Method of obtaining an antiplatelet effect |
| 02/07/1991 | WO1991001288A1 Method of preparation of chloranil |
| 01/30/1991 | EP0410343A2 Use of bisphenol derivatives in treating diabetes mellitus |
| 01/30/1991 | EP0410172A2 2-Halogeno-3-phenoxy-1,4-naphthoquinone derivatives |
| 01/24/1991 | DE3924177A1 Verfahren zur herstellung von chloranil Process for the preparation of chloranil |
| 01/01/1991 | US4982015 Dihydrodihydroxynaphthalene substituted with electron withdrawing group |
| 01/01/1991 | US4981982 Neutralization |
| 01/01/1991 | US4981874 Preventing pneumoxystis pneumonia in aids patients |
| 12/25/1990 | US4980489 2-(1-alkylaminoalkyl)-3-hydroxy-1,4-naphthoquinone |
| 11/27/1990 | US4973720 Hydroquinone, hydrogen peroxide, iodine or iodide catalyst |
| 11/14/1990 | EP0397137A1 Production process of quinizarin |
| 11/13/1990 | US4970328 Miticide, fungicide |
| 11/13/1990 | CA1276144C Method for oxidation |
| 10/30/1990 | US4966984 Heating in presence of superactive bleaching clay |
| 10/23/1990 | US4965384 Reacting a copper halide and tetramethylenediamine in the presence of an acidic phenol |
| 10/23/1990 | US4965274 Quinolyl methoxy compounds, processes for preparation thereof and pharmaceutical composition comprising the same |
| 10/03/1990 | EP0390181A2 Perylenequinone (UCN-1028D) derivatives |
| 10/02/1990 | US4960914 Method for the preparation of naphthoquinone |
| 09/19/1990 | EP0387820A2 Process for the preparation of 2,3,5-trimethyl-p-benzoquinone |
| 09/12/1990 | CN1045259A Process for preparing anthracyclinones |
| 09/12/1990 | CN1009549B Process for the manufacture of optically active compounds |
| 09/11/1990 | CA1273893A1 Method for electrolyzing cerous sulfate |
| 09/05/1990 | EP0385354A1 Process for preparing anthracyclinones |
| 09/03/1990 | WO1990009974A1 Process for preparing anthracyclinones |