CAS: 1965-09-9; 4,4-Oxydiphenol

上下游产品

CAS号1655-74-9 双(4-甲氧基二苯基)醚 | CAS号28896-49-3 4-碘二苯基醚 | CAS号123-31-9 对苯二酚 | CAS号101-80-4 4,4'-二氨基二苯醚(ODA) | CAS号459-57-4 对氟苯甲醛 | CAS号2444-89-5 4-氯苯酯 | CAS号2050-47-7 4,4'-二溴二苯醚 | CAS号95-57-8 邻氯苯酚 | CAS号104-92-7 对溴苯甲醚 | CAS号1122-93-6 potassium p-met... | CAS号105329-34-8 4-(4-hydroxy-3-... | CAS号108-94-1 环己酮 | CAS号123-31-9 对苯二酚 | CAS号108-93-0 环己醇 | CAS号108-95-2 苯酚 | CAS号23446-80-2 4,4'-Diacetoxyd... | CAS号1655-74-9 双(4-甲氧基二苯基)醚 | CAS号189039-68-7 4-[3,4-bis(2-ph... | CAS号7494-55-5 Phenol,4,4'-oxy... | CAS号47169-38-0 4-(4-hydroxy-3-...

右旋奎宁酸置于amberlyst-15体系中,用 甲苯,乙腈 用作溶剂,化学反应 185.0H,反应生成4,4'-二羟基二苯醚
参考文献:奎宁酸的生物质基和无氧化剂制备对苯二酚
标题:奎宁酸的生物质基和无氧化剂制备对苯二酚
摘要:来自非化石来源的对苯二酚:对苯二酚是由基于生物质的原料通过无金属和无氧化剂的方法制得的.在温和的条件下,以聚合物为基础的amberlyst-15干燥形式促进了奎尼酸向氢醌的转化,而未催化的过程则要求不切实际的反应条件.
Doi:10.1002/ejoc.201600616

专利信息

专利号:US-6639099-B1
优先权日:1999-08-27
标题 :Process for synthesis of Di(meth)acrylic acid esters
发明人：KNEBEL JOACHIM; CARL JOACHIM; GRAEFF GUENTER; WITTKOWSKI ANDREA
权利人:ROEHM GMBH
摘要:A process for the synthesis and recovery of di(meth)acrylic acid esters at a high degree of purity. Di(meth)acrylic acid esters are produced by transesterfication of (meth)acrylic acid esters of C1 to C4 alcohols with 1,n-diols (where n>=3) in the presence of a zirconium catalyst that comprises a chelate of zirconium with a 1,3-dicarbonyl compound. These catalysts can be readily separated or removed from the reaction mixture by precipitation with phosphoric acid, thus providing a convenient and inexpensive method of producing a di(meth)acrylic acid ester with a reduced level of zirconium.

专利号:US-2023348657-A1
优先权日:2020-07-23
标题 :Synthesis of linear polyoxazolidinones using uretdiones as diisocyanate component
发明人：QUELL AGGELIKI; THOMAS HANS-JOSEF; ELING BEREND
权利人:BASF SE
摘要:A process for preparing a thermoplastic polymer involves reacting at least components (a) to (b), in the presence of a catalyst composition (c). Component (a) is an isocyanate composition containing at least one uretdione diisocyanate (a-i), and component (b) is an epoxide composition containing at least one diepoxide (b-i). The catalyst composition (c) contains at least one ionic liquid (c-i), preferably selected from 1-ethyl-3-methyl imidazolium bromide, 1-benzyl-3-methyl imidazolium chloride. 1-butyl-1-methylpiperidinium chloride, 1-ethyl-2,3-dimethylimidazolium bromide, 1-(2-hydroxyethyl)-3-methyl imidazolium chloride, butyl-1-methylpiperidinium acetate, or mixtures of two or more thereof. A thermoplastic polymer obtained or obtainable from the process is useful for the preparation of a fibre or a molded article or as a modifier for another thermoplastic material.

专利号:US-2009043069-A1
优先权日:2007-08-06
标 题 :Activated esters for synthesis of sulfonated telechelic polycarbonates
发明人：BRUNELLE DANIEL J; COLONNA MARTINO; FIORINI MAURIZIO; BERTI CORRADO; BINASSI ENRICO
权利人:GEN ELECTRIC
摘要:A process of making a sulfonated telechelic polycarbonate is described. A dihydroxy compound, a carbonate ester, and an activated ester of a sulfobenzoic acid salt are reacted together. The method results in a sulfonated telechelic polycarbonate which has a high percentage of sulfonated end groups, is soluble, and is transparent.

专利号:US-6096853-A
优先权日:1998-12-21
标 题 :Synthesis of phenolic monomers containing imide or diimide moieties and high heat carbonate polymers prepared therefrom
发明人：AMERIK VALENTINA; HOEKS THEODORUS L; LIKIBI PARFAIT JEAN MARIE; NELSON MARK
权利人:GEN ELECTRIC
摘要:A process has been surprisingly discovered that can produce a high heat carbonate polymer (i.e., one with a Tg greater that 150° C.), without the drawbacks encountered in attempts to produce a high heat carbonate polymer. The process of the instant invention comprises the steps of: n (1) reacting an aromatic amine with a dihydric phenol to prepare an aminophenol; n (2) reacting an anhydride or dianhydride with the aminophenol to prepare a phenolic precursor; and n (3) reacting the phenolic precursor with a carbonate precursor to prepare a high heat carbonate polymer.

专利号:US-2006115536-A1
优先权日:2004-11-12
标 题 :Glycerin based synthesis of silver nanoparticles and nanowires
发明人：YACAMAN MIGUEL J; ELECHIGUERRA JOSE L; BURT JUSTIN L; MORONES JOSE R; LOPEZ LETICIA L
权利人:UNIV TEXAS
摘要:The present invention includes compositions and methods for the production of noble metal nanoparticles and nanowires conjugated to polyols or polymers. The present invention allows the incorporation of noble metal nanoparticles to a wide range of products such as body care products to exploit the biocidal properties of silver nanoparticles against bacteria, viruses and fungi.

专利号:US-5214118-A
优先权日:1990-10-05
标 题:Process for synthesis of polyestercarbonate-siloxane copolymers
发明人：HAWKINS CHRISTOPHER M; ROSENQUIST NILES R
权利人:GEN ELECTRIC
摘要:A process for synthesizing polyestercarbonate-siloxane copolymers which have a smaller concentration of low molecular weight species and greater thermal stability has been described. Essentially the process includes adding the comonomer, diacid chloride siloxane, after approximately 1/3 of the phosgene has been added, in a conventional interfacial copolymerization, (as opposed to addition at the beginning of the polymerization).