CAS: 319-89-1; 2,3,5,6-Tetrahydroxycyclohexa-2,5-Diene-1,4-Dione

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CAS号118-76-3 玫瑰红酸二水合物 | CAS号87-89-8 肌醇 | CAS号608-80-0 异氰酸-1-萘酯 | CAS号551-72-4 1L-手性纤维醇 | CAS号15206-55-0 苯甲酰甲酸甲酯 | CAS号523-21-7 玫瑰红酸钠 | CAS号488-86-8 克酮酸 | CAS号20129-59-3 (4-acetyloxy-2,... | CAS号20129-61-7 (2,4,5-triacety... | CAS号4358-87-6 DL-扁桃酸甲酯 | CAS号608-80-0 异氰酸-1-萘酯 | CAS号5096-13-9 Ethyl 4-is°Cyan... | CAS号1202-36-4 diphenyltellurium | CAS号527-31-1 环己六酮水合物 | CAS号70-55-3 对甲苯磺酰胺 | CAS号118-76-3 玫瑰红酸二水合物

专利信息

专利号:WO-2009034398-A1
优先权日:2007-09-11
标题:Process for the synthesis of 6-hydroxymethyl-l,4- androstadien-3.17-dione
发明人：HANTOS GABOR; HERINE BERTA MONIKA; TEGDES ANIKO; BARTHO ISTVAN; DEVENYI TAMAS; GALIK GYOERGY; PECSNE RAZSO AGNES; GANCSOS VALERIA; KOENCZOEL KALMAN; MAHO SANDOR
权利人:RICHTER GEDEON NYRT; HANTOS GABOR; HERINE BERTA MONIKA; TEGDES ANIKO; BARTHO ISTVAN; DEVENYI TAMAS; GALIK GYOERGY; PECSNE RAZSO AGNES; GANCSOS VALERIA; KOENCZOEL KALMAN; MAHO SANDOR
摘要:The invention relates to a novel process for the synthesis of 6-hydroxymethyl-l,4- androstadien-3,17-dione which means dehydrogenating 6-hydroxymethyl-4-androsten- 3,17-dione in the presence of a biocatalyst.

专利号:US-10266503-B1
优先权日:2016-05-24
标 题 :Sulfoxide ligand metal catalyzed oxidation of olefins
发明人：WHITE M CHRISTINA; AMMANN STEPHEN E; LIU WEI; MA RULIN
权利人:UNIV ILLINOIS
摘要:The enantioselective synthesis of isochroman motifs has been accomplished via Pd(II)-catalyzed allylic C—H oxidation from terminal olefin precursors. Critical to the success of this goal was the development and utilization of a novel chiral aryl sulfoxide-oxazoline (ArSOX) ligand. The allylic C—H oxidation reaction proceeds with the broadest scope and highest levels asymmetric induction reported to date (avg. 92% ee, 13 examples ≥90% ee). Additionally, C(sp 3 )-N fragment coupling reaction between abundant terminal olefins and N-triflyl protected aliphatic and aromatic amines via Pd(II)/sulfoxide (SOX) catalyzed intermolecular allylic C—H amination is disclosed. A range of 52 allylic amines are furnished in good yields (avg. 76%) and excellent regio- and stereoselectivity (avg. >20:1 linear:branched, >20:1 E:Z). For the first time, a variety of singly activated aromatic and aliphatic nitrogen nucleophiles, including ones with stereochemical elements, can be used in fragment coupling stiochiometries for intermolecular C—H amination reactions.

专利号:WO-2005121077-A1
优先权日:2004-06-10
标题:Preparation and applications of polymer-supported halogenated benzoquinones as oxidative agents
发明人：COULADOUROS ELIAS; STRONGILOS ALEXANDROS
权利人:COULADOUROS ELIAS; STRONGILOS ALEXANDROS
摘要:This invention provides a general method for the synthesis of polymer-supported benzoquinones described by the following generic structure I: wherein: •, X, R1, R2 and R3 are described in the main text. The general concept of the method consists of the use of a halogenated starting material of the general structure II (Figure 1) which by an nucleophilic substitution reaction (NSR) or a palladium mediated coupling (PMC) is either directly loaded on a resin to afford IIIa (Path A) or transformed to intermediate IIIb (Path B) which is subsequently (with or without modification) loaded on a resin to afford once again IIIa. Deprotection and/or oxidation of IIIa, if needed, afford target solid-supported oxidants I The polymer-supported benzoquinones I are used for the oxidation of hydroquinones to quinones, for the oxidation of benzylic alcohols the aldehydes, for the removal of p-methoxybenzyl and related protective groups, for the dehydrogenation of tetrahydronaphthalene derivatives and for the dehydrogenation of steroid 4-en-3-ones. The polymer-supported reagent after its use is regenerated upon treatment with an oxidative agent.

专利号:US-3652603-A
优先权日:1968-06-11
标 题:Method for production of 2 3-di(lower alkoxy)-5-methyl-1 4-benzoquinone
发明人：KAWAMATSU YUTAKA; SUGIHARA HIROSADA; MORIMOTO HIROSHI
权利人:TAKEDA CHEMICAL INDUSTRIES LTD
摘要:2,3-DI(LOWER ALKOXY) -5-METHYL-1,4-BENZOQUINORES ARE PRODUCED BY OXIDIZING 3,4,5-TR-(LOWER ALKOXY) TOLUENE WITH A PEROXIDE. THESE MATERIALS ARE USEFUL AS STARTING MATERIALS FOR THE SYNTHESIS OF UBIQUINONES, THE LATTER COMPOUNDS, WHICH ARE MEDICINALLY IMPORTANT SUBSTANCES USED IN THE ELECTRON TRANSFERRING ACTIVITY OF MITOCHONDRIA IN LIVING TISSUES.

专利号:US-2011098466-A1
优先权日:2007-08-31
标题:Synthesis Of Triphenodioxazine Pigments
发明人：KEMPTER PETER; STRECK WILHELM
权利人:CLARIANT FINANCE BVI LTD
摘要:The invention relates to a process for the preparation of compounds of the general formula (I) where X are halogen atoms, the rings labeled A are linearly or angularly fused in position 1,2; 2,3 or 3,4, and in position 8,9; 9,10 or 10,11, to a 5- or 6-membered heterocyclic ring containing in the ring one nitrogen atom and one oxygen atom, or containing in the ring two nitrogen atoms, comprising an oxidation of a 3,6-bisarylamino-2,5-dihalobenzoquinone of the formula (II) in an aprotic-polar organic solvent in the presence of an organic sulfonic acid.

专利号:US-3564025-A
优先权日:1966-06-28
标 题:2-methoxy-6-multiprenyl-1,4-benzoquinones and a process of making
发明人：FOLKERS KARL; DAVES GLENN DOYLE JR
权利人:MERCK & CO INC
摘要:2-METHOXY-6-MULTIPRENYL-1,4-BENZOQUINONES ARE PREPARED BY REACTING A 2-METHOXY-6-MULTIPRENYLPHENOL WITH POTASSIUM NITRODISULFONATE. THE PRODUCTS ARE USEFUL AS INTERMEDIATES IN THE MICROBIOLOGICAL SYNTHESIS OF COENZYME Q COMPOUNDS.