CAS: 1079-21-6; [1,1'-Biphenyl]-2,5-Diol

上下游产品

邻苯基苯酚 2-Phenylphenol 90-43-7
间羟基联苯 3-Phenylphenol 580-51-8
O-(2-Biphenylyl)Hydroxylamine 107449-13-8
苯基对苯二酚二乙酯 2,5-Diacetoxybiphenyl 58244-28-3

📜苯基-P-苯醌置于cp*ir(6,6'-Dionato-2,2'-Bipyridine)(H2O),氢气体系中,用 2-甲基-2-丁醇 用作溶剂,以91 %的收率获得2,5-二羟基联苯
参考文献:金属配体双功能铱催化剂催化醌在大气压下氢化成对苯二酚
标题:金属配体双功能铱催化剂催化醌在大气压下氢化成对苯二酚
摘要:已经开发出在大气压下将醌氢化为氢醌的通用方法.在 [cp*ir(2,2'-Bpyo)(H 2 O)] (0.5-1 Mol %) 存在下,以高产率获得了一系列产品.此外,还将该催化体系扩展到1,4-苯醌二亚胺的氢化反应.人们发现 Bpy 配体中的官能团对于铱配合物的催化活性至关重要.
Doi:10.1021/acs.Orglett.4C00064

专利信息

专利号:US-5146008-A
优先权日:1988-06-16
标 题:Process for the synthesis of aromatic phenyl substituted diols
发明人：GARDANO ANDREA; COASSOLO ALFREDO; CASAGRANDE FRANCESCO; FOA MARCO; CHAPOY LARRY L
权利人:HIMONT ITALIA
摘要:A process for the synthesis of phenyl substituted aromatic diols, obtained by dehydrogenation of the corresponding substituted cyclohexyl derivatives in the presence of a palladium supported catalyst, said palladium supported catalyst being prepared by a process which comprises treating a palladium hydrolysis compound with reducing agents.

专利号:US-7147800-B2
优先权日:2001-01-23
标题 :Selective ether cleavage synthesis of liquid crystals
发明人：WELLINGHOFF STEPHEN T; HANSON DOUGLAS P
权利人:SOUTHWEST RES INST
摘要:A method for making platform molecules comprising: reacting 4-alkoxy benzoyl chloride with R²-hydroquinone under first conditions effective to produce bis 1,4[4-alkoxy-benzoyloxy]-R²-phenylene comprising bis terminal alkoxy groups wherein R² is a bulky organic group; and, subjecting the bis 1,4[4-alkoxy-benzoyloxy]-R²-phenylene to second conditions effective to selectively cleave the bis terminal alkoxy groups to produce a solution comprising complexes comprising diphenolic platform molecules comprising bis terminal hydroxyl groups, the second conditions also being effective to precipitate the complexes out of the solution.

专利号:US-5098531-A
优先权日:1988-03-24
标题 :Electrochemical synthesis of 2-aryl-hydroquinones
发明人：GATTI NORBERTO; FOA MARCO
权利人:DONEGANI GUIDO IST
摘要:Preparation of 2-aryl-hydroquinones of formula (I) by oxidizing by an electrochemical route a compound of formula (II): ##STR1## wherein A represents an aryl group optionally substituted with groups compatible with the reaction conditions in an acidic aqueous reaction medium, at temperatures within the range of from 10° to 100° C., and with anodes of graphite or PbO 2 . The products are used in photography and in the field of liquid-crystal polymers.

专利号:US-4847429-A
优先权日:1987-08-03
标 题:Synthesis of phenylhydroquinones
发明人：LENTZ CARL M; GUSTAFSON BRUCE L; VAN SICKLE DALE E; BOWERS JR JOSEPH S
权利人:EASTMAN KODAK CO
摘要:Process is disclosed for the preparation of phenylhydroquinones by the alkylation of hydroquinone (or derivatives thereof) with the cyclohexyl moieties, cyclohexanol or cyclohexene (or derivatives thereof), followed by dehydrogenation of the intermediate cyclohexylhydroquinone.

专利号:US-2004144954-A1
优先权日:2001-01-23
标 题 :Selective ether cleavage synthesis of liquid crystals

专利号:US-2003055280-A1
优先权日:2001-01-23
标 题:Methods for synthesis of liquid crystals