CAS: 95-65-8; 3,4-Xylenol

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CAS号115-11-7 2-甲基丙烯 | CAS号108-95-2 苯酚 | CAS号95-47-6 邻二甲苯 | CAS号6196-95-8 1,2-二甲基-4-(1-苯乙基)苯 | CAS号31599-61-8 3,4-二甲基碘苯 | CAS号4685-47-6 3,4-二甲基苯甲醚 | CAS号22618-23-1 3,4-二甲基苯乙酸 | CAS号1377585-21-1 N-[(2-acetoxy-5... | CAS号55499-43-9 3,4-二甲基苯硼酸 | CAS号10496-92-1 2-(羟甲基)-4,5-二甲基苯酚 | CAS号527-54-8 3,4,5-三甲基苯酚 | CAS号496-78-6 2,4,5-三甲基苯酚 | CAS号526-85-2 2,3,4-trimethyl... | CAS号36436-65-4 2'-羟基-4',5'-二甲基苯乙酮 | CAS号41438-18-0 2-甲基-4-羟基苯甲醛 | CAS号55389-75-8 双(3,4-二甲基苯基)胺 | CAS号95-47-6 邻二甲苯 | CAS号583-57-3 1,2-二甲基环己烷 | CAS号5715-23-1 3,4-二甲基环己醇

邻二甲苯置于双氧水,Bis(Triphenyl)Oxodiphosphonium Trifluoromethanesulfonate Salt体系中,用 乙醇,水 作为反应溶剂,化学反应 0.67H,以70%的收率获得产物3,4-二甲基苯酚
参考文献:在三氟甲磺酸六苯基氧二磷鎓存在下,使用过氧化氢通过芳烃的羟基化合成取代的苯酚
标题:在三氟甲磺酸六苯基氧二磷鎓存在下,使用过氧化氢通过芳烃的羟基化合成取代的苯酚
摘要:使用过氧化氢水溶液作为氧化剂和三氟甲磺酸六苯基氧二phosph作为促进剂,已经开发了一种温和而有效的从芳烃合成苯酚的方案.通过简单的步骤,在室温下于etoh-H2O中以短的反应时间进行反应.
DOI:10.2174/1570178615666180430121524

专利信息

专利号:US-2006128930-A1
优先权日:2004-12-03
标题 :Synthesis of sterically hindered phenol based macromolecular antioxidants
发明人：DHAWAN ASHISH; CHOLLI ASHOK L
权利人:DHAWAN ASHISH; CHOLLI ASHOK L
摘要:Disclosed is a method for the synthesis of sterically hindered polymeric antioxidants based on phenol type antioxidant monomers. The method includes polymerizing and alkylating a phenol containing monomer represented by the following structural formula: n n nto produce a sterically hindered polymeric macromolecular antioxidant. X, R 10 and q are as defined herein. The disclosed method is a simple, direct and economical process for the synthesis of sterically hindered polymeric macromolecular antioxidants.

专利号:US-7678877-B2
优先权日:2004-12-03
标题 :Process for the synthesis of polyalkylphenol antioxidants
发明人：YANG SUIZHOU; CHOLLI ASHOK L
权利人:POLNOX CORP
摘要:Disclosed is a method for the synthesis of sterically hindered polymeric antioxidants based on phenol type antioxidant monomers. The method includes partially etherifying, polymerizing and thermally rearranging a phenol containing monomer represented by the following structural formula: n nto produce a sterically hindered polymeric macromolecular antioxidant. X, R 10 and q are as defined herein. The disclosed method is a simple, direct and economical process for the synthesis of sterically hindered polymeric macromolecular antioxidants.

专利号:US-7148356-B2
优先权日:2001-07-13
标题:Process for the catalytic synthesis of biaryls and polymers from aryl compounds
发明人：SMITH III MILTON R; MALECZKA ROBERT E
权利人:UNIV MICHIGAN STATE
摘要:A process for producing organic substituted aromatic or heteroaromatic compounds including biaryl and biheteroaryl compounds in a two-step reaction. In the first step, the aromatic or heteroaromatic compound is borylated in a reaction comprising a borane or diborane reagent (any boron reagent where the boron reagent contains a B—H, B—B or B—Si bond) and an iridium or rhodium catalytic complex. In the second step, a metal catalyst catalyzes the formation of the organic substituted aromatic or heteroaromatic compound from the borylated compound and an electrophile such as an aryl or organic halide, triflate (OSO 2 CF 3 ), or nonaflate (OSO 2 C 4 F 9 ). The steps in the process can be performed in a single reaction vessel or in separate reaction vessels. The present invention also provides a process for synthesis of complex polyphenylenes starting from halogenated aromatic compounds.

专利号:US-10040752-B2
优先权日:2015-08-24
标 题 :Synthesis of levomethadone hydrochloride or dextromethadone hydrochloride and methods for use thereof
发明人：MKRTCHYAN GNEL; YAO QINGWEI
权利人:CODY LABORATORIES INC
摘要:Highly efficient methods for synthesis of levomethadone hydrochloride or dextromethadone hydrochloride are provided starting from D-alanine, or L-alanine, respectively, with retention of configuration. Methods for treating a subject are provided comprising administering a composition comprising an effective amount of levomethadone hydrochloride having not more than 10 ppm dextromethadone.

专利号:US-2011237832-A1
优先权日:2010-03-29
标 题:Synthesis of hdac inhibitors: trichostatin a and analogues
发明人：HELQUIST PAUL; SCHAUER DOUGLAS; COSNER CASEY C; ISKA VIJAYA B R; CHATTERJEE ANAMITRA; WIEST OLAF
权利人:UNIV NOTRE DAME DU LAC
摘要:Embodiments herein relate to histone deacetylaces (HDACs) and HDAC inhibitors, such as trichostatin A (TSA) and TSA analogues. Embodiments provide simple methods of synthesizing TSA and TSA analogues. These methods provide routes of synthesis of TSA and TSA analogues that enable the production of the HDAC inhibitors at lower cost and in greater quantities than previously were available.

专利号:US-4684749-A
优先权日:1985-05-31
标 题:Process for the synthesis of phenol
发明人：PAPARATTO GIUSEPPE
权利人:MONTEDIPE SPA
摘要:A process for the synthesis of phenol by means of a hydrolysis of iodobenzene in the liquid phase and in the presence of a Cu containing catalyst, carried out at 120 DEG -260 DEG C. in the presence of a basic acidity acceptor, selected from the group consisting of alkali metal hydroxides and alkali metal salts coming from inorganic or organic acids, showing a pKa equal to or higher than 4.5.