| Patents for C07C 46 - Preparation of quinones (1,836) |
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| 09/27/1995 | CN1109046A The preparation of benzoquinones by oxidation of phenols |
| 09/20/1995 | EP0672019A1 Process for recovering sulfur and hydrogen from hydrogen sulfide |
| 09/12/1995 | US5449580 Organic photosensitive material for electrophotography |
| 08/30/1995 | EP0669309A1 Process for the preparation of tetrachloro-1,4-benzoquinone |
| 08/03/1995 | DE4402333A1 Organo rhenium derivs. used as catalysts |
| 08/02/1995 | EP0665209A1 Process for the catalytic oxidation of aromatic compounds |
| 08/02/1995 | CN1105976A Preparation of tetrachlor-1,4-benzochinon |
| 07/25/1995 | US5435991 Use of persistent heterocyclic free-radicals in magnetic resonance imaging |
| 07/12/1995 | EP0662073A1 Process for preparing 5,8-dihydronaphthoquinone derivatives, novel 5,8-dihydronaphthoquinone derivatives and their use as anticancer agent |
| 07/12/1995 | EP0662004A1 Use of persistent free-radicals in magnetic resonance imaging |
| 07/06/1995 | WO1995018082A1 Ozonide reducing agent |
| 07/05/1995 | CN1029227C Composition for denatured denaturation or protection agent for nerve cell and process for preparing benzene derivatives used for composition |
| 06/28/1995 | EP0659727A1 Process for the preparation of benzoquinones by oxidation of phenoles |
| 05/24/1995 | CN1028518C Process for preparing anthracyclinones |
| 05/02/1995 | US5412124 Preparation process of naphthoquinone derivative and intermediate for the preparation thereof |
| 04/26/1995 | EP0649830A1 Process for the preparation of tetrachloro-1,4-Benzoquinone |
| 04/18/1995 | US5407885 Photochromic naphthacenequinones, process for their preparation and the use thereof |
| 03/29/1995 | EP0644869A1 Ion pairs of hypericin compounds having antiviral activity |
| 03/09/1995 | DE4405929C1 Process for the preparation of tetrachloro-1,4-benzoquinone |
| 03/09/1995 | DE4336323C1 Process for the preparation of tetrachloro-1,4-benzoquinone |
| 02/07/1995 | US5387704 Diels-Alder reaction of an N-butadienylcarbamic acid ester with a 1,4-naphthoquinone; oxidation of carbamoyl-substituted intermediate in a tertiary amine in the presence of a copper salt |
| 02/02/1995 | WO1995003267A1 1,2-benzoquinones |
| 02/02/1995 | CA2167504A1 1,2-benzoquinones |
| 02/01/1995 | EP0636598A1 Preparation process of naphthoquinone derivatives and intermediates for the preparation thereof |
| 01/31/1995 | US5385648 Process for preparing a ceric ion-containing aqueous acid solution |
| 01/27/1995 | CA2117412A1 Preparation process of naphthoquinone derivative and intermediate for the preparation thereof |
| 01/26/1995 | WO1995002572A1 Process for preparing 5,8-dihydronaphthoquinone derivatives, novel 5,8-dihydronaphthoquinone derivatives and their use as anticancer agent |
| 01/26/1995 | CA2144518A1 Process for preparing 5,8-dihydronaphtoquinone derivatives, novel 5,8-dihydronaphtoquinone derivatives and their use as anticancer agent |
| 01/25/1995 | EP0635479A1 Perylene quinones (UCN-1028 D) derivatives |
| 11/15/1994 | US5364946 Process for the preparation of substituted pentaalkylchromenes |
| 10/05/1994 | CN1026103C Preparation method for new benzoquinone compound |
| 10/04/1994 | US5352845 Vitamin e |
| 09/07/1994 | EP0613877A1 Preparation process of quinone derivative and intermediate for the preparation thereof |
| 09/02/1994 | CA2116611A1 Preparation process of quinone derivative and intermediate for the preparation thereof |
| 08/10/1994 | CN1025608C New fluoro-naphthacenediones, their glycosilatede derivatives and their manufacture procedures |
| 08/04/1994 | WO1994017055A1 Antiviral naphthoquinone compounds, compositions and uses thereof |
| 08/03/1994 | CN1025559C Synthetic method for 1,2-dihydroxyanthraquinone |
| 08/02/1994 | US5334735 Process for preparing chloranil |
| 08/02/1994 | US5334363 Process for recovering sulfur and hydrogen from hydrogen sulfide |
| 07/12/1994 | US5329027 Oxidative dehalogenation process for the production of perchlorinated quinones |
| 07/12/1994 | US5329026 Process for preparation of 2-substituted 1,4-naphthoquinone |
| 06/22/1994 | CN1088234A Triphenodioxazine dyes and preparation and application of same |
| 06/09/1994 | WO1994012431A1 Process for recovering sulfur and hydrogen from hydrogen sulfide |
| 06/07/1994 | US5318993 Antihyperlipidemic benzoquinones |
| 06/01/1994 | EP0599307A1 St.-John's-wort dry extract, process for its preparation and its use |
| 05/18/1994 | EP0597287A1 Process for the preparation of anthraquinones |
| 05/17/1994 | CA1329621C Naphthoquinones in the treatment or prophylaxis of pneumocystis carinii infections |
| 05/10/1994 | US5310762 Medicaments |
| 04/20/1994 | EP0593397A1 Polymerisable photochromic naphthacendiones, polymers of these monomers, their process of preparation and their use |
| 04/19/1994 | US5304663 Tetraalkyl-substituted 1,4-benzoquinones as intermediates for tetra- or penta-alkyl substituted 6-hydroxy-chromenes |
| 04/16/1994 | CA2108291A1 Polymerisable photochromic naphthacenediones, polymers of these monomers, process for their preparation and the use thereof |
| 04/13/1994 | CN1024188C Process for preparing 2,3,5-trimethyl benzoquinone |
| 04/06/1994 | EP0591010A1 Organic photosensitive material for electrophotography |
| 04/05/1994 | US5300663 Photochromic naphthacenequinones, process for their preparation and the use thereof |
| 03/31/1994 | DE4231451A1 Waraterpol(s),terpene analogous metabolites from penicillium sp. - are antimycotics and antibacterials for treating human infections and also effective against phytopathogenic fungi and fungi which destroy food |
| 03/22/1994 | US5296107 Oxidizing cerium III to cerium IV in electrolytic cell by flowing electrolyte stream containing cerium III ions over anode at turbulent flow rates |
| 03/16/1994 | CN1024000C Process for preparing 4-demethoxydaunomycinone |
| 03/15/1994 | US5294724 4-hydroxytetrahydropyran-2-ones and the corresponding dihydroxycarboxylic acid derivatives, salts and esters and a process for their preparation |
| 02/23/1994 | EP0583440A1 Indirect cerium mediated electrosynthesis |
| 02/22/1994 | US5288390 Polycyclic aromatic ring cleavage (PARC) process |
| 02/03/1994 | DE4325342A1 Prodn. of cerium ion solns. in diaphragm-free electrolytic bath - by oxidn. of cerium ion solns. in presence of heterocyclic cpd. to improve current yield |
| 02/01/1994 | US5283355 Benzoquinone compounds |
| 01/29/1994 | CA2100930A1 Process for preparing a ceric ion-containing aqueous acid solution |
| 01/26/1994 | EP0580185A1 Medicaments |
| 12/29/1993 | EP0576123A1 Watersoluble triphenodioxazine dye |
| 11/16/1993 | US5262552 Reacting mevalonolactol derivative with benzene magnesium chloride derivative to obtain phenylpentanetriol compound, acylation, reduction oxidation |
| 11/16/1993 | CA1324377C Lignin derived quinonic compound mixtures useful in the wood pulping process |
| 10/06/1993 | EP0564254A1 Polycyclic aromatic ring cleavage (parc) process |
| 10/01/1993 | CA2091743A1 Polycyclic aromatic ring cleavage (parc) process |
| 09/29/1993 | CN1076735A Indirect cerium mediated electrosynthesis |
| 09/14/1993 | US5245059 Method for the preparation of 2,3,5-trimethylbenzoquinone |
| 09/05/1993 | WO1993018208A1 Indirect cerium mediated electrosynthesis |
| 08/19/1993 | WO1993015607A1 Ion pairs of hypericin compounds having antiviral activity |
| 08/19/1993 | CA2130090A1 Ion pairs of hypericin compounds having antiviral activity |
| 08/03/1993 | US5233056 Tocopherol derivatives; decyclizing a tricyclic benzoquinone monometal |
| 07/06/1993 | US5225578 2-(1-alkylaminoalkyl)-3-hydroxy-1,4-naphthoquinone, process for its production and processes for producing 2-(1-alkenyl)-3-hydroxy-1,4-naphthoquinone and 2-alkyl-3-acyloxy-1,4-naphthoquinone by using it |
| 07/06/1993 | US5225184 Medicaments |
| 06/15/1993 | US5220042 1,4-benzoquinone derivatives and benzene derivatives, and process for preparing the same |
| 05/26/1993 | EP0543346A1 Method for the preparation of substituted pentaalkylchromenes |
| 05/21/1993 | CA2082003A1 Process for the preparation of substituted pentaalkylchromenes |
| 05/12/1993 | CN1020592C Process for preparation of 4-demethoxydaunomycinone, aglycone of 4-demethoxydaunoubicin |
| 05/04/1993 | US5208354 Contrast agents, light absorbers or optical recording media |
| 04/27/1993 | US5206437 Form complexes and absorb ultraviolet rays |
| 04/27/1993 | US5206268 Medicaments |
| 03/31/1993 | EP0348464B1 2-neopentylanthraquinone |
| 03/18/1993 | WO1993002710A3 Use of persistent free radicals in magnetic resonance imaging |
| 03/16/1993 | CA1314553C Bicyclic compounds, processes for preparation thereof and pharmaceutical composition comprising the same |
| 02/23/1993 | CA1313879C Process for the production of high-purity tetrachloro -1,4-benzoquinone |
| 02/23/1993 | CA1313878C Process for the production of high-purity tetrachloro -1,4-benzoquinone |
| 02/18/1993 | WO1993002711A1 Use of persistent free-radicals in magnetic resonance imaging |
| 02/18/1993 | WO1993002710A2 Use of persistent free radicals in magnetic resonance imaging |
| 02/18/1993 | CA2115260A1 Use of persistent free-radicals in magnetic resonance imaging |
| 01/19/1993 | US5180842 Purification of quinones |
| 01/19/1993 | US5180758 Process for preparing anthracyclinones |
| 01/19/1993 | US5180742 Lipoxygenase Inhibitors |
| 01/12/1993 | CA1312615C Process for preparing 2,3,5-trimethylbenzoquinone |
| 01/12/1993 | CA1312550C Pervaporation of phenols |
| 01/05/1993 | US5177227 Photochromic naphthacenequinones, process for their preparation and the use thereof |
| 12/29/1992 | US5175319 Naphthoquinone derivatives |
| 12/29/1992 | US5175318 Catalytic peroxidation of phenols |