CAS: 2215-89-6; 4,4'-Oxybis(Benzoic Acid)

上下游产品

CAS号201230-82-2 carbon monoxide | CAS号2050-47-7 4,4'-二溴二苯醚 | CAS号1579-40-4 对二甲苯基醚 | CAS号767-00-0 4-羟基苯甲腈 | CAS号2615-11-4 4-乙酰基苯酯 | CAS号623-03-0 对氯苯腈 | CAS号1194-02-1 对氟苯腈 | CAS号74-11-3 对氯苯甲酸 | CAS号99-96-7 4-羟基苯甲酸 | CAS号456-22-4 对氟苯甲酸 | CAS号7158-32-9 4,4'-氧二(苯甲酰氯) | CAS号101-62-2 4,4'-oxydibenza... | CAS号6508-04-9 双(4-氰苯基)醚 | CAS号14387-30-5 4,4’-氧代双苯甲酸二甲酯 | CAS号3096-86-4 ethyl 4-(4-etho... | CAS号101-84-8 二苯醚 | CAS号918797-35-0 4-(4-phenylmeth...

4,4'-氧代双苯甲酸二甲酯置于水,Potassium Hydroxide体系中,用 乙醇 用作溶剂,以96%的收率获得4,4'-二苯醚二甲酸
参考文献:一种4,4'-二苯醚二甲酸的合成方法
标题:一种4,4'-二苯醚二甲酸的合成方法
摘要:本发明公开了一种4,4'‑二苯醚二甲酸的合成方法,包括以下步骤:S1,在保护气下,对羟基苯甲酸酯,碱和溶剂在110‑120oc下脱水反应2‑4小时得到混合溶液;S2,向步骤s1得到的混合溶液中加入催化剂和对卤苯甲酸酯进行升温偶联反应,反应温度为145‑195°C,反应结束后加入溶剂进行萃取分液,结晶,得到固体4,4'‑二苯醚二甲酸二酯;S3,将步骤s2中4,4'‑二苯醚二甲酸二酯在碱水溶液和溶剂中升温水解,再加酸调节ph至呈酸性,经析晶,过滤得到4,4'‑二苯醚二甲酸.本发明工艺操作简单,设备要求低,两步反应总收率可达到80%以上,产品纯度高,生产过程中产生的"三废"少,对环境友好,工业化可行性高.

专利信息

专利号:US-5883221-A
优先权日:1996-11-12
标题:Synthesis of polybenzoxasole and polybenzothiazole precursors
发明人：SEZI RECAI; KUEHN EBERHARD; AHNE HELLMUT; KOCMAN SUELEYMAN
权利人:SIEMENS AG
摘要:In a method of synthesis of polybenzoxazole and polybenzothiazole precursors, a dicarboxylic acid or a dicarboxylaic acid ester is reacted with a bis-o-aminophenol or bis-o-aminothiophenol in a suitable solvent in the presence of an activating reagent having the following structure: ##STR1##

专利号:US-6180830-B1
优先权日:1995-11-08
标题 :Method for preparing a bimetallic ruthenium/tin catalyst and a process for the synthesis of aldehydes
发明人：JACQUOT ROLAND
权利人:RHODIA CHIMIE SA
摘要:The present invention relates to a new process for the preparation of a bimetallic ruthenium/tin catalyst. The process for the preparation of a bimetallic ruthenium/tin catalyst according to the invention is characterised by the fact that it consists in carrying out the reduction of a ruthenium complex having an electrovalency of -4 and a coordination number of 6, the ligands being either a halogen atom or an anion or a tin halide. The catalyst is further employed for the preparation of aldehydes by reduction, in the vapor phase, of carboxylic acids, esters and anhydrides.

专利号:US-10737239-B2
优先权日:2015-11-27
标题 :Ultrafast high space-time-yield synthesis of metal-organic frameworks
发明人：BURCKHART JULIA; MARX STEFAN; ARNOLD LENA; HOFMANN CLAUS; Müller Ulrich
权利人:BASF SE
摘要:The invention relates to a process for the preparation of metal-organic frameworks (MOFs) in form of a homogenous powder, and a process wherein the metal-organic framework is molded into shaped bodies.

专利号:US-9951095-B2
优先权日:2014-05-16
标 题:Chromium metal organic frameworks and synthesis of metal organic frameworks
发明人：ZHOU HONG-CAI; Liu tian-fu; LIAN XIZHEN; ZOU LANFANG; FENG DAWEI
权利人:TEXAS A & M UNIV SYS
摘要:The present invention relates to monocrystalline metal organic frameworks comprising chromium ions and carboxylate ligands and the use of the same, for example their use for storing a gas. The invention also relates to methods for preparing metal organic frameworks comprising chromium, titanium or iron ions and carboxylate ligands. The methods of the invention allow such metal organic frameworks to be prepared in monocrystalline or polycrystalline forms.

专利号:US-10047195-B2
优先权日:2012-04-02
标题:Monomers bearing associative groups for the synthesis of supramolecular polycondensates
发明人：GILLET JEAN-PHILIPPE; DISSON JEAN-PIERRE; VAN HEMELRYCK BRUNO
权利人:ARKEMA FRANCE
摘要:The present invention relates to the use of monomers bearing associative groups in order to manufacture a supramolecular polycondensate, to certain of these monomers, to a process for manufacturing a supramolecular polycondensate, to the polycondensate obtained, and also to an article or a composition incorporating same. The associative groups may be, for example, imidazolidone, urea or triazole groups.

专利号:US-4533725-A
优先权日:1983-01-28
标题:Synthesis of high molecular weight polybenzimidazole with arylhalo phosphorus compound catalyst
发明人：CHOE EUI W; CONCIATORI ANTHONY B
权利人:DELANESE CORP
摘要:This invention provides a two stage melt polymerization process for the production of an improved type of high molecular weight polybenzimidazole, which involves the use of an arylhalophosphine or arylhalophosphite polymerization catalyst. The process provides poly-2,2'-(m-phenylene)-5,5'-bibenzimidazole of improved color and Plugging Value, and is further characterized by an inherent viscosity of at least about 1.0 dl/g, and weight average molecular weight of at least about 100,000.