CAS: 2373-98-0; 4,4'-Diamino-[1,1'-Biphenyl]-3,3'-Diol

上下游产品

CAS号119-90-4 3,3'-二甲氧基联苯胺 | CAS号6264-77-3 o-Diphenetidine | CAS号738545-25-0 3,3'-bis-sulfoo... | CAS号7647-01-0 盐酸 | CAS号6309-66-6 2-methyl-6-(2-m... | CAS号7664-93-9 硫酸 | CAS号56716-06-4 3-[2-amino-5-[4... | CAS号6309-67-7 Acetamide,N,N'-...

2,6-二硝基苯酚置于ammonium Hydroxide,硫酸,Palladium On Activated Charcoal,Platinum On Activated Charcoal,氢气,双氧水,Copper(II) Sulfate,三乙胺,Sodium Iodide,Sodium Nitrite体系中,用 甲醇,乙酸乙酯,1,2-二氯乙烷,异丙醇,甲苯 用作溶剂,20.0~110.0 °C,800.01 Kpa 条件下,反应生成3,3'-二羟基联苯胺
参考文献:一种利用芳烃硝化副产物合成苯并恶唑类化合物及应用
标题:一种利用芳烃硝化副产物合成苯并恶唑类化合物及应用
摘要:本发明公开了一种利用芳烃硝化副产物合成苯并恶唑类化合物的方法及应用.其主要过程可表述为:将2,4‑二硝基氯化苯生产企业的硝化副产物,经分步结晶的方式,得到2,4‑二硝基氯化苯,2,6‑二硝基氯化苯(I)及少量残留物.其中2,6‑二硝基氯化苯(I)为主要起始原料,经过水解,选择性催化加氢还原,环合,卤代及碳碳偶联等过程合成苯并恶唑类化合物;再以上述过程得到的化合物为主要原料,合成一系列具有重要用途的化工中间体,如邻氨基苯酚,2‑氨基‑4‑硝基苯酚,2‑氨基‑5‑硝基苯酚及其盐酸盐等.该公开方法将工业副产转化为高附加值的芳香族氨基酚类产品,减少了2,4‑二硝基氯化苯生产企业工业危废,拓展了企业展品范围,增加了企业经济效益.

专利信息

专利号:US-5194562-A
优先权日:1989-02-22
标题:Nucleophilic displacement method for synthesis of non-rigid PBZ polymers
发明人：INBASEKARAN MUTHIAH N; MULLINS MICHAEL J
权利人:DOW CHEMICAL CO
摘要:Azole rings, such as oxazole and thiazole rings, can activate an aromatic ring bonded to a leaving group such as a halogen atom so that the aromatic ring will undergo aromatic nucleophilic substitution. The reaction is useful for making ethers, thioethers and amines containing azole rings. In particular, monomers having azole rings, activated aromatic rings with leaving groups and nucleophilic moieties can react under conditions of aromatic nucleophilic displacement to form non-rigid rob PBZ polymers. The non-rigid rod PBZ polymers can be used to form molecular composites with rigid rod PBZ polymers which molecular composites are not substantially phase separated.

专利号:US-5216110-A
优先权日:1989-02-22
标题 :Monomers useful in nucleophilic displacement synthesis of polybenzazole polymers
发明人：INBASEKARAN MUTHIAH N; MULLINS MICHAEL J
权利人:DOW CHEMICAL CO
摘要:Azole rings, such as oxazole and thiazole rings, can activate an aromatic ring bonded to a leaving group such as a halogen atom so that the aromatic ring will undergo aromatic nucleophilic substitution. The reaction is useful for making ethers, thioethers and amines containing azole rings. In particular, monomers having azole rings, activated aromatic rings with leaving groups and nucleophilic moieties can react under conditions of aromatic nucleophilic displacement to form non-rigid rod PBZ polymers. The non-rigid rod PBZ polymers can be used to form molecular composites with rigid rod PBZ polymers which molecular composites are not substantially phase separated.

专利号:US-5104960-A
优先权日:1989-02-22
标 题:Nucleophilic displacement method for synthesis of non-rigid PBZ polymers
发明人：INBASEKARAN MUTHIAH N; MULLINS MICHAEL J
权利人:DOW CHEMICAL CO
摘要:Azole rings, such as oxazole and thiazole rings, can activate an aromatic ring bonded to a leaving group such as a halogen atom so that the aromatic ring will undergo aromatic nucleophilic substitution. The reaction is useful for making ethers, thioethers and amines containing azole rings. In particular, monomers having azole rings, activated aromatic rings with leaving groups and nucleophilic moieties can react under conditions of aromatic nucleophilic displacement to form non-rigid rod PBZ polymers. The non-rigid rod PBZ polymers can be used to form molecular composites with rigid rod PBZ polymers which molecular composites are not substantially phase separated.

专利号:US-2012329958-A1
优先权日:2011-06-01
标题:Polymer synthesis and thermally rearranged polymres as gas separation membranes
发明人：FREEMAN BENNY D; SANDERS DAVID; RIBEIRO JR CLAUDIO P; SMITH ZACHARY; MCGRATH JAMES E; GUO RUILAN
权利人:FREEMAN BENNY D; SANDERS DAVID; RIBEIRO JR CLAUDIO P; SMITH ZACHARY; MCGRATH JAMES E; GUO RUILAN; VIRGINIA TECH INTELL PROP; UNIV TEXAS
摘要:The present invention includes a polymer formed by the thermal rearrangement of an ortho-functional polyimide synthesized via chemical imidization with permeation properties for gas separation membranes higher than those synthesized via thermal imidization and a method for forming that polymer having tailored transport properties and different chemical resistance. The present invention also includes a polymer formed by the thermal rearrangement of an ortho-functional polyimide in which a portion of the ortho-position functional group is lost during thermal rearrangement to yield a thermally rearranged polymer with higher permeability than would be seen without the ortho-position group. This ortho-position group can be the result of chemical imidization, or the result of a post-imidization modification reaction.

专利号:US-2024010794-A1
优先权日:2020-09-29
标题:Synthesis of self-healing benzoxazine polymers through melt polymerization

专利号:US-12410280-B2
优先权日:2020-04-15
标 题:Synthesis, purification, and properties of ring-opened benzoxazine thermoplastic
发明人：ZHOU TIANLEI; YAO HAIQING; MIYAUCHI MASAHIKO
权利人:KANEKA CORP
摘要:A crosslinkable thermoplastic resin composition may include a polymer formed from the reaction between a bis-benzoxazine monomer and a bifunctional comonomer having phenol, amine, and/or thiol functional groups, wherein the polymer contains at least one crosslinkable group. A method of forming a crosslinkable thermoplastic resin composition may include reacting a bis-benzoxazine monomer and a bifunctional comonomer to form a polymer containing at least one crosslinkable group. A method of forming a cured thermoplastic resin may include curing the crosslinkable thermoplastic resin composition by applying an external stimulus.