CAS: 22803-05-0; [1,1'-Biphenyl]-3,3',4,4'-Tetracarboxylic Acid

相似化合物

63297-02-9 915978-19-7 36978-37-7

上下游产品

CAS号86-90-8 4-溴邻苯二甲酸酐 | CAS号87639-57-4 4-溴邻苯二甲酸二甲酯 | CAS号7500-55-2 4-Cyclohexene-1... | CAS号63297-02-9 3,3'-二甲基-[1,1'-... | CAS号36978-37-7 3,3',4,4'-联苯四甲酸四甲酯 | CAS号6301-60-6 4-碘邻苯二甲酸 | CAS号2420-87-3 3,3',4,4'-联苯四羧酸二酐

4,4'-二甲基联苯置于吡啶,Aluminum (III) Chloride,Potassium Permanganate,水体系中,用 二氯甲烷 用作溶剂,化学反应生成3,3'4,4'-联苯四羧酸
参考文献:3,3`,4,4`-联苯四甲酸的合成方法
标题:3,3`,4,4`-联苯四甲酸的合成方法
摘要:本发明公开了一种3,3',4,4'‑联苯四甲酸的合成方法,它是以4,4'‑二甲基联苯为起始原料,先与式ⅰ的环状酸酐进行傅克酰基化反应得到中间体ⅱ,再经氧化反应得到3,3',4,4'‑联苯四甲酸,式ⅰ的环状酸酐为丁二酸酐,戊二酸酐,己二酸酐或者马来酸酐.本发明的方法无需价格昂贵的催化体系,大大降低了合成3,3',4,4'‑联苯四甲酸的生产成本;本发明的方法操作简单,反应条件温和,而且三废少,废水易于处理,对环境也友好;本发明采用的原料4,4'‑二甲基联苯为医药中间体沙坦联苯的副产物,该副产物占沙坦联苯生产量的10%左右,将该副产物应用到合成3,3',4,4'‑联苯四甲酸上,还能实现变废为宝.

专利信息

专利号:US-2008146772-A1
优先权日:2006-11-02
标题 :Materials and methods for co-crystal controlled solid-state synthesis of imides and imines
发明人：ZAWOROTKO MICHAEL J; CHENEY MIRANDA L
权利人:UNIV SOUTH FLORIDA
摘要:The subject invention pertains to methods for solid-state synthesis of imides and imines using co-crystals. The co-crystal formers utilized are substrates of condensation reactions and co-crystals can be obtained in high yield via methods such as slurrying, solvent evaporation, solvent crystallization, treatment with supercritical fluid(s), melting plus crystallization, slurry conversion, grinding of solids, blending of powders, heating of solids, solvent-drop grinding, or grinding plus melting.

专利号:WO-2024140771-A1
优先权日:2022-12-30
标 题 :Catalyst for synthesis of polyimide, preparation method therefor and use thereof
发明人：DUAN PINGPING; HE JUNPENG; DING MINGYUE; WU HONGSHENG
权利人:BYD CO LTD
摘要:A catalyst for synthesis of polyimide. The structural formula of the catalyst is as shown in formula (I), wherein Ar 1 and Ar 2 are independently selected from a substituted or unsubstituted aryl group or a substituted or unsubstituted heterocyclic aryl group, and R 1 is oxygen, sulfur, a sulfone group, a sulfoxide group, a carbonyl group, a secondary amine group, an alkylene group, an alkenylene group, an alkynylene group, an alicyclic group, a heterocycloarylene group, a fused ring arylene group, or a single bond.

专利号:US-10808079-B2
优先权日:2015-03-27
标 题:Synthesis of copolyimides containing fluorine and silicon surface modifying agents
发明人：CONNELL JOHN W; WOHL JR CHRISTOPHER J; DOSS JEREME R; CROW ALLISON M; KIM WILLIAM T; LIN YI
权利人:NASA
摘要:Various embodiments provide random copolyimides that may possess the mechanical, thermal, chemical and optical properties associated with polyimides yet achieve a low energy surface. In various embodiments, the copolyimides may be prepared using a minor amounts of a diamino terminated fluorinated alkyl ether oligomer and a diamino terminated siloxane oligomer. The various embodiments include processes for making the copolyimides containing fluorine and silicon surface modifying agents and anisotropic coatings and articles of manufacture from them. Thus the coatings and articles of manufacture made with the copolyimides of the various embodiments may be characterized as having an anisotropic fluorine and silicon composition and low surface energy.

专利号:US-5104944-A
优先权日:1989-07-18
标题:Process for nucleophilic derivatization of materials having an imide group conjugated to an aromatic moiety
发明人：GOLDBERG MARTIN J; MORRIS DANIEL P; VIEHBECK ALFRED
权利人:IBM
摘要:A process for the synthesis of derivatives of materials containing an imide group conjugated to an aromatic moiety to form an ester, a thioester, an amide, a ketone, and silylesters. Electrons are supplied to redox sites to form a reduced imide material. The reduced imide material is contacted with a nucleophile which opens the imide ring of the reduced imide and chemically combines with a carbonyl carbon atom of the open imide ring to form an imide derivative.

专利号:US-9040604-B2
优先权日:2012-12-13
标题:Multifunctional hyperbranched organic intercalating agent, method for its manufacture and its use
发明人：SU WEN-CHIUNG; JENG RU-JONG; JUANG TZONG-YUAN; SHAU SHI-MIN; CHEN GUAN-LIANG; Lin han-sheng
权利人:CHUNG SHAN INST OF SCIENCE; CHUNG SHAN INST OF SCIENCE
摘要:A facile synthesis of amphiphilic hyperbranched polymers consisting of poly(amic acid) and polyimide was developed via “A 2 +B 3 â€? approach from difunctional anhydride and trifunctional hydrophilic poly(oxyalkylene)triamine. Various amphiphilic hyperbranched poly(amic acid)s (HBPAAs) with terminal amine functionalities and amic acid structures were prepared through ring-opening polyaddition at room temperature, followed by thermal imidization process for the formation of hyperbranched polyimides (HBPIs), accordingly. The resulting HBPIs were analyzed by GPC, indicating the molecule weights of 5000Ëœ7000 g/mol with a distribution of polydispersity between 2.0 and 3.8. The amine titration for HBPIs indicated the peripheral total-amine contents to be 8.32Ëœ18.32 mequiv/g dependent on compositions.

专利号:US-11220480-B2
优先权日:2016-12-31
标题 :Synthesis of reactive intermediates for polyetherimides, and uses thereof
发明人：GUGGENHEIM THOMAS LINK; CHIONG HENDRICH; QUEVEDO SANCHEZ BERNABE; MISIEGO ARPA CARMEN ROCIO; RODRIGUEZ ORDONEZ JUAN JUSTINO; NIEVES REMACHA JAVIER
权利人:SHPP GLOBAL TECH BV
摘要:A method for producing a reactive intermediate composition, including: reacting a substituted phthalic anhydride of the formula (I) with a diamine of the formula H 2 N—R—NH 2 in the presence of an aromatic dianhydride in an amount of 10 to 50 mole percent based on the total moles of anhydride functionality in the reaction; wherein the reacting is conducted in an aprotic solvent in a reactor, under conditions effective to produce the reactive intermediate composition; and wherein X comprises a halogen or a nitro group, and R comprises a C 6-36 aromatic hydrocarbon group or a halogenated derivative thereof, a straight or branched chain C 2-20 alkylene or a halogenated derivative thereof, or a C 3-8 cycloalkylene or a halogenated derivative thereof.