CAS: 81-64-1; 1,4-Dihydroxyanthracene-9,10-Dione

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CAS号85-44-9 苯酐 | CAS号123-31-9 对苯二酚 | CAS号88-95-9 邻苯二甲酰氯 | CAS号28736-42-7 1,4-二氟蒽醌 | CAS号6119-74-0 9, 10-Anthracen... | CAS号26851-55-8 boric anhydride | CAS号106-48-9 对氯苯酚 | CAS号51287-54-8 3-phenylsulfany... | CAS号106-51-4 苯醌 | CAS号106752-92-5 1,4,9,10-tetram... | CAS号476-60-8 1,4-二羟基蒽醌隐色体 | CAS号17648-03-2 2,3-二氢-9,10-二羟-... | CAS号81-64-1 1,4-二羟基蒽醌 | CAS号20253-58-1 1,4-dihydroxy-2... | CAS号22297-70-7 2-Anthracenesul... | CAS号23743-40-0 1,4-dihydroxy-2... | CAS号25060-18-8 2,3-二甲基奎札因 | CAS号23861-69-0 9,10-Anthracene...

蒽醌置于硫酸,硼酸,Sodium Nitrite体系中,化学反应生成 1,4-二羟基蒽醌
参考文献:Gb346355
标题:Gb346355

专利信息

专利号:US-6712949-B2
优先权日:2001-07-22
标 题:Electrochemical synthesis of hydrogen peroxide
发明人：GOPAL RAMANATHAN
权利人:ELECTROSYNTHESIS CO INC
摘要:Improved methods and devices for the synthesis of hydrogen peroxide employing redox catalysts in a gas diffusion electrode or membrane electrode assembly in a semi-chemical/electrochemical system for the production of high purity, stable, usually acidic, aqueous solutions of peroxide at high conversion efficiencies without requiring organic solvents.

专利号:US-4405522-A
优先权日:1982-01-18
标题:Anthracycline synthesis
发明人：MITSCHER LESTER A
权利人:ADRIA LAB INC
摘要:A synthesis of 5,12-dihydroxy-1,3,4-trihydro-2,6,11-tetracenetrione and its derivatives from leucoquinizarin or a derivative of leucoquinizarin. The tetracenetriones are well-known intermediates in the synthesis of compounds related to doxorubicin.

专利号:US-5177235-A
优先权日:1992-06-11
标题 :Synthesis of tetraalkylsilanes
发明人：EISENBERG DAVID C; ROBINSON GENE C
权利人:ETHYL CORP
摘要:This invention relates to a process for preparing tetrahydrocarbylsilane in high yield, comprising: a) forming a reaction mass from molten metal and trihydrocarbylaluminum, in an hydrocarbon solvent under an inert gas atmosphere; b) maintaining the reaction mass at a temperature in the range of from about 100° to about 130° C. for a period of time sufficient to form sodium tetrahydrocarbylaluminate; c) contacting the sodium tetrahydrocarbylaluminate with organotrihalosilane; and d) heating the contacted tetrahydrocarbylaluminate and organotrihalosilane to a temperature and for a period of time sufficient to form the tetrahydrocarbylsilane, wherein the tetrahydrocarbylaluminate and tetrahydrocarbylsilane are formed at a pressure of less than about 3000 KPa and wherein the hydrocarbyl group of the tetrahydrocarbyl silane is one or a mixture of hydrocarbyl groups having less than about 8 carbon atoms each.

专利号:US-4739062-A
优先权日:1985-07-09
标题:Method of producing paraquinones
发明人：BIGI FRANCA; CASIRAGHI GIOVANNI; CASNATI GIUSEPPE; SARTORI GIOVANNI
权利人:CONSIGLIO NAZIONALE RICERCHE
摘要:A new widely-applicable method has been found for synthesis of 9,10-anthraquinones and similar chemical compounds of wide use in industry and pharmacology, by reacting suitable aromatic substrates with activated dicarboxylic acids (more particularly dichlorides) in the presence of metal halides. The special characteristics of the reaction are the good yields, high selectivity, the possibility of operating in a single reactor and the use of starting compounds which are cheap and easily available on the market.

专利号:US-3965125-A
优先权日:1971-02-08
标题:Synthesis of certain bis(phthalic anhydrides)
发明人：MEYERS ROBERT A
权利人:TRW INC
摘要:Monomeric high molecular weight dianhydrides or tetraacids can be produced by the nucleophilic coupling of a halo substituted phthalimides acid and an aliphatic or aromatic compound having polyfunctional groups capable of reacting with the halo moiety of the phthalinide followed by hydrolysis and dehydration. Specifically, 4-chlorophthalate sodium salt is converted to an imide to reduce side reactions with the carboxylic acid groups prior to reaction with 4,4'-disodiumdiphenylene oxide sulfone or 2,2-di (4-sodium phenoxide) propane. After the reaction of the imide and the sulfone or propane compounds, the diimide formed is converted to the corresponding dianhydride.

专利号:US-4973674-A
优先权日:1987-04-14
标 题:Chiral synthesis of anthracyclines from substituted anthraquinones
发明人：BRASCA MARIA G; PENCO SERGIO
权利人:ERBA CARLO SPA
摘要:Anthracycline glycosides of formula (I): ##STR1## wherein R 1 and R 2 are independently selected from hydrogen, methyl, ethyl or methoxy and pharmaceutically acceptable acid addition salts thereof, which are useful in treatment of human cancer, are prepared by a stereospecific condensation of a derivative of daunosamine of general formula (II): ##STR2## wherein R 3 is an alkyl, perfluoroalkyl or aryl group and R 4 , R 5 , R 6 and R 7 are independently selected from alkyl, aryl or aralkyl having up to ten carbon atoms, with a quinone quinizarine epoxide of general formula (III) ##STR3## and conversion of the product obtained to the anthracycline glycoside of formula (I) or salt thereof.