CAS: 620-92-8; 4,4'-Methylenediphenol

上下游产品

CAS号611-99-4 4,4'-二羟基二苯甲酮 | CAS号486-25-9 9-芴酮 | CAS号108-95-2 苯酚 | CAS号3277-26-7 1,1,3,3-四甲基二硅氧烷 | CAS号1745-81-9 2-烯丙基酚 | CAS号69552-26-7 bis(4-hydroxyph... | CAS号122-25-8 5,5'-亚甲基二水杨酸 | CAS号50-00-0 甲醛 | CAS号726-18-1 4,4'-二甲氧基二苯基甲烷 | CAS号623-05-2 对羟基苯甲醇 | CAS号500-85-6 靛酚 | CAS号21825-03-6 4,4'-methyleneb... | CAS号2150-58-5 N,N-二甲基吲哚苯胺 | CAS号90-96-0 4,4'-二甲氧基二苯甲酮 | CAS号91-22-5 喹啉 | CAS号99-96-7 4-羟基苯甲酸 | CAS号108-95-2 苯酚 | CAS号123-08-0 4-羟基苯甲醛; 对羟基苯甲醛 | CAS号123-31-9 对苯二酚 | CAS号3046-82-0 5-[(3-formyl-4-...

对羟基苯甲醇置于ytterbium(Iii) Triflate体系中,用 乙腈 作为反应溶剂,以31 %的收率获得产物4,4'-二羟基二苯甲烷
参考文献:β-受体阻滞剂富马酸比索洛尔相关化合物的合成与表征
标题:β-受体阻滞剂富马酸比索洛尔相关化合物的合成与表征
摘要:比索洛尔是一种用于治疗高血压的β受体阻滞剂.在比索洛尔的合成和放大过程中,会产生几种相关化合物.在本文中,我们公开了比索洛尔五种相关化合物的化学合成方法,即 3,3'-((亚甲基双(4,1-亚苯基))双(氧基))双(1-(异丙氨基)) 丙-2-醇) (2),(比索洛尔 Ph.Eur 杂质-C),3,3'-(((氧基双(亚甲基))双(4,1-亚苯基))双(氧基))双(1-(异丙氨基)丙-2-醇) (3),(比索洛尔 Ph.Eur 杂质-D),(+/-) 2-(4-((2-异丙氧基乙氧基)甲基)苯氧基)-3-(异丙氨基) Propan-1-Ol (4),(比索洛尔 Ph.Eur 杂质-F),(+/-) 4-((3-异丙基-2-氧代恶唑烷-5-基)甲氧基)苯甲醛 (17) (比索洛尔 Ph.Eur 杂质)-T),(+/-)5-((4-(羟甲基)苯氧基)甲基)-3-异丙基恶唑烷-2-酮(18)(比索洛尔ph
DOI:10.1007/s11696-023-03118-2

专利信息

专利号:US-2003130433-A1
优先权日:2001-10-30
标题 :Process for the production of graft polymers
发明人：WENZ ECKHARD; BUCHHOLZ VERA; EICHENAUER HERBERT; WOLF UDO; BORN RALF-JURGEN; JANSEN ULRICH; DIETZ WOLFGANG
摘要:A process of preparing a graft polymer (e.g., an ABS graft copolymer), which involves determining the concentration of at least one reaction component during the course of the reaction by means of Raman spectroscopy, is disclosed. The process, more particularly, comprises: (a) synthesizing the graft polymer from a reaction mixture comprising reactive components (e.g., monomers such as styrene and acrylonitrile, and a graft base); (b) analyzing the reaction mixture, at intervals, during the synthesis of the graft polymer, by means of Raman spectra; (c) recording the results of the Raman spectra analysis; (d) determining the concentration of at least one of said reactive components (e.g., styrene) by means of spectral evaluation of the recorded Raman spectra; and (e) terminating the synthesis reaction of the graft polymer when the concentration of at least one of the reactive components has reached a predetermined concentration value.

专利号:US-9815809-B2
优先权日:2013-07-05
标题:Formation of chiral 4-chromanones using chiral pyrrolidines in the presence of phenols or thiophenols
发明人：LETINOIS ULLA; NETSCHER THOMAS
权利人:DSM IP ASSETS BV
摘要:The present invention relates to a synthesis of chromanones or chromanes in a stereospecific matter in view of the 2-position in the chromanone or chromane ring. It has been found that this synthesis is particularly possible in the presence of a chiral compound of formula of a specific type and of at least one phenol or thiophenol.

专利号:US-11292873-B2
优先权日:2013-11-05
标 题 :Etheramines prepared from a mixture of two or more multifunctional alcohol initiators, and their use as curatives or intermediates for polymer synthesis
发明人：ZHOU HUI; LEWIS DAVID C; KLEIN HOWARD P; RENKEN TERRY L; PATTERSON LEAH
权利人:HUNTSMAN PETROCHEMICAL LLC
摘要:Implementations described herein generally relate to etheramine mixtures formed from a mixture of two or more multifunctional alcohol initiators, processes for the etheramine mixtures production, and its use as a curing agent or as a raw material in the synthesis of polymers. In one implementation, the process comprises mixing a polyol initiator having a melting point greater than a processing temperature and a polyol initiator having a melting point less than the processing temperature to form a polyol initiator mixture having a melting point less than the processing temperature, charging the polyol initiator mixture to an alkoxylation reaction zone, contacting the polyol initiator mixture with an alkylene oxide in the alkoxylation reaction zone to provide a mixture of alkoxylated precursor polyols and charging the mixture of alkoxylated precursor polyols to a reductive amination zone and reductively aminating the mixture of alkoxylated precursor polyols to form the etheramine mixture.

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-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.