1.1-Di-(4-carboxyphenyl)-ethan | 35026-58-5

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 异戊烯醇脂质
• 英文名称: 1.1-Di-(4-carboxyphenyl)-ethan
• 英文别名: 4,4'-ethylidene-di-benzoic acid；4,4'-Aethyliden-di-benzoesaeure；α.α-Bis-(4-carboxy-phenyl)-aethan；(α.α-Diphenyl-aethan)-dicarbonsaeure-(4.4')；bis(p-carboxyphenyl)ethane；4-[1-(4-Carboxyphenyl)ethyl]benzoic acid
• CAS: 35026-58-5
• 化学式: C₁₆H₁₄O₄
• 分子量: 270.285
• InChiKey: OLZBOWFKDWDPKA-UHFFFAOYSA-N

物化性质

• 熔点：
  275 °C
• 沸点：
  480.0±38.0 °C(Predicted)
• 密度：
  1.280±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.1
• 重原子数：
  20
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.12
• 拓扑面积：
  74.6
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  1.1-Di-(4-carboxyphenyl)-ethan 在 氯化亚砜 作用下， 生成 dimethyl 4,4'-(ethane-1,1-diyl)dibenzoate
  参考文献：
  名称：

  SYNTHESIS OF 1,1-DI-( p-CARBOXYPHENYL)ETHANE AND ITS ESTERS

  摘要：

  氯苯与乙基亚乙酸乙烯酯在氟磺酸-氢氟酸催化剂存在下的缩合反应已经改进，可以高产率地得到1,1-二-(对氯苯基)乙烷，通过改进的铜氰化物方法将其转化为相应的二腈。对二腈的碱性水解得到1,1-二-(对羧基苯基)乙烷。其甲酯和2-乙基己酯可以直接从二酸或通过二酸氯化物制备。

  DOI：

  10.1139/v56-056
• 作为产物：
  描述：

  2,2-bis-(4-carboxy-phenyl)-propionic acid 生成 1.1-Di-(4-carboxyphenyl)-ethan
  参考文献：
  名称：

  Haiss, Chemische Berichte, 1882, vol. 15, p. 1481

  摘要：

  DOI：

文献信息

• Aromatic Amide Compound
  申请人：Nair Kamlesh P.

  公开号：US20130048911A1

  公开（公告）日：2013-02-28

  An aromatic amide compound having the following general formula (I) is provided: wherein, X 1 and X 2 are independently C(O)HN or NHC(O); G 1 , G 2 and G 3 are independently hydrogen, C(O)HN-phenyl, or NHC(O)-phenyl, wherein at least one of G 1 , G 2 and G 3 is C(O)HN-phenyl or NHC(O)-phenyl; Q 1 , Q 2 , and Q 3 are independently hydrogen, C(O)HN-phenyl, or NHC(O)-phenyl, wherein at least one of Q 1 , Q 2 , and Q 3 is C(O)HN-phenyl or NHC(O)-phenyl; R 5 is halo, haloalkyl, alkyl, alkenyl, aryl, heteroaryl, cycloalkyl, or heterocyclyl; and m is from 0 to 4.

  提供了一种具有以下通式(I)的芳香酰胺化合物：其中，X1和X2独立地为C(O)HN或NHC(O)；G1、G2和G3独立地为氢、C(O)HN-苯基或NHC(O)-苯基，其中至少一个G1、G2和G3为C(O)HN-苯基或NHC(O)-苯基；Q1、Q2和Q3独立地为氢、C(O)HN-苯基或NHC(O)-苯基，其中至少一个Q1、Q2和Q3为C(O)HN-苯基或NHC(O)-苯基；R5为卤素、卤代烷基、烷基、烯基、芳基、杂芳基、环烷基或杂环烷基；m为0至4。
• Hydroxylamine esters as polymerization initiators
  申请人：——

  公开号：US20030216494A1

  公开（公告）日：2003-11-20

  The invention relates to novel cyclic and open-chain hydroxylamine esters and polymerizable compositions comprising these hydroxylamine esters and an ethylenically unsaturated monomer or oligomer. The invention also relates to use as polymerization initiators and to the use of known hydroxylamine esters selected from the group consisting of HALS compounds and the novel hydroxylamine esters for the controlled degradation of polypropylene and for achieving a controlled increase in the molecular weight of polyethylene.

  该发明涉及新型环状和开链羟胺酯以及包括这些羟胺酯和乙烯基不饱和单体或寡聚物的可聚合组合物。该发明还涉及用作聚合引发剂以及用于控制聚丙烯降解和实现聚乙烯分子量控制增加的已知羟胺酯，所述羟胺酯来自HALS化合物和新颖羟胺酯的组合。
• N-substituted carbamoyllactam functional compounds and polylactam block copolymers derived therefrom
  申请人：STAMICARBON B.V.

  公开号：EP0404254A1

  公开（公告）日：1990-12-27

  Disclosed are conversion products of N-substituted carbamoyllactam functional compounds characterized by the general formula: where: A represents an oxygen atom or an NH group; R represents an alkyl, aralkyl, alkaryl or aryl group, where alkyl and alkyl bound in aralkyl or alkaryl may also be cycloalkyl; P represents a residue of a compound P(AH)x with a number average molecular weight of at least 150, with one or more OH or NH₂ groups, P(AH)x being a liquid crystalline compound or a compound with liquid crystalline segments in the main chain and/or the side chain, or a compound which forms with lactam-­blocked polyisocyanate a compound with liquid crystalline properties; (-L-) represents an opened lactam ring; (-L) represents a non-opened lactam ring; x is a whole number higher than or equal to 1; y is equal to 0 or 1; and a is a whole number higher than or equal to 1. Further, the present invention relates to polylactam block copolymers obtained by lactam polymerization at a lactam group.

  本发明涉及一种N-取代的羰胺内酰胺功能化合物的转化产物，其特征在于通用公式：其中：A代表氧原子或NH基团；R代表烷基、芳基烷基、芳基烷基或芳基基团，其中芳基烷基或芳基基团中的烷基和烷基也可以是环烷基；P代表具有平均分子量至少为150的P(AH)x化合物的残基，其中P(AH)x是液晶化合物或具有主链和/或侧链中液晶片段的化合物，或者与内酰胺阻化聚异氰酸酯形成具有液晶性能的化合物；(-L-)代表打开的内酰胺环；(-L)代表未打开的内酰胺环；x是大于或等于1的整数；y等于0或1；a是大于或等于1的整数。此外，本发明涉及通过内酰胺基团的内酰胺聚合获得的聚内酰胺嵌段共聚物。
• Acid halide and/or acyllactam functional compounds and polylactam block copolymers derived therefrom
  申请人：STAMICARBON B.V.

  公开号：EP0404255A1

  公开（公告）日：1990-12-27

  The invention relates to acid halide and/or acyllactam functional compounds, to polylactam block copolymers derived therefrom by lactam polymerization at a lactam group, and to the use of such block copolymers in polyamide mixtures. The compounds contain liquid crystalline compounds or compounds which combine with acyllactam to form a compound with liquid crystalline properties. The products of this invention are useful as accelerators in the preparation of nylon block copolymers, in particular block copolymers with improved stiffness. The block copolymers are useful in products requiring good tensile strength, chemical resistance and/or heat resistance, and are particularly useful in electrical engineering applications and in the aircraft industry.

  该发明涉及酸卤和/或酰乳酰胺功能化合物，以及由此类化合物通过在乳酰胺基团上进行乳酰聚合而衍生的聚乳酰块共聚物，以及在聚酰胺混合物中使用这种块共聚物。这些化合物含有液晶化合物或与酰乳酰胺结合形成具有液晶性能的化合物。该发明的产品可用作尼龙块共聚物制备中的催化剂，特别是改善了刚度的块共聚物。这些块共聚物适用于需要良好抗拉强度、化学抵抗力和/或耐热性的产品，尤其适用于电气工程应用和航空工业中。
• Liquid-crystalline polyester production method
  申请人：Ohtomo Shinji

  公开号：US20050080227A1

  公开（公告）日：2005-04-14

  A liquid-crystalline polyester production method with a shortened reaction time and improved productivity per unit time by using an organic basic compound containing one nitrogen atom in a molecule is achieved by a liquid-crystalline polyester production method comprising carrying out acylation reaction and/or ester-exchange in the presence of an organic basic compound containing one nitrogen atom in one molecule and satisfying the following inequality (1): 0< A+ 0.4× B (1) wherein, A and B satisfy A=(Ec h+ −Ec)/(Ep h+ −Ep)}−1 and B=(φf/φfp)−1; Ec denotes the heat of formation of the organic basic compound; Ec h+ denotes the heat of formation of a compound coordinated by proton; Ep denotes the heat of formation of pyridine; and Ep h+ denotes the heat of formation of pyridine coordinated by proton to the nitrogen atom; φf and φfp independently denote parameters relevant to the steric angles.

  通过使用分子中含有一个氮原子的有机碱性化合物，实现了一种缩短反应时间和提高单位时间生产率的液晶聚酯生产方法，其包括在有机碱性化合物的存在下进行酰化反应和/或酯交换，并满足以下不等式(1)：0