1,4-bis(4-hydroxyphenyl)butan-1,4-dione | 108791-64-6

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 1,4-bis(4-hydroxyphenyl)butan-1,4-dione
• 英文别名: 1,4-bis-(4-hydroxy-phenyl)-butane-1,4-dione；1,4-Bis-(4-hydroxy-phenyl)-butan-1,4-dion；1,4-Bis(4-hydroxyphenyl)butane-1,4-dione
• CAS: 108791-64-6
• 化学式: C₁₆H₁₄O₄
• 分子量: 270.285
• InChiKey: IKIUUOBVCBMFHU-UHFFFAOYSA-N

物化性质

• 熔点：
  190-192 °C(Solv: ethyl ether (60-29-7))
• 沸点：
  526.4±35.0 °C(Predicted)
• 密度：
  1.285±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  20
• 可旋转键数：
  5
• 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：

  1,1,2,2-四溴乙烷 、 三氯化铝 、 丁二酸 、 1,4-bis(4-hydroxyphenyl)butan-1,4-dione 、 苯甲醚 生成 alkaline earth salt of/the/ methylsulfuric acid
  参考文献：
  名称：

  Desai; Wali, Proceedings - Indian Academy of Sciences, Section A, 1937, vol. 6, p. 135,142

  摘要：

  DOI：
• 作为产物：
  描述：

  对羟基苯乙酮 在 亚碘酰苯 、 三氟化硼乙醚 、 三乙胺 作用下， 以 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 2.0h， 生成 1,4-bis(4-hydroxyphenyl)butan-1,4-dione
  参考文献：
  名称：

  Moriarty, Robert; Prakash, Om; Duncan, Michael P., Journal of the Chemical Society. Perkin transactions I, 1987, p. 559 - 562

  摘要：

  DOI：

文献信息

• Media controlled photo-Favorskii type rearrangement of α-chloro acetophenones: Synthesis of phenylacetic acids
  作者：Dilip D. Dhavale、Vasant P. Mali、Surendra G. Sudrik、Harikisan R. Sonawane

  DOI：10.1016/s0040-4020(97)10081-3

  日期：1997.12

  Photolysis of substituted α-chloro acetophenones has been studied in different solvent systems wherein 1,2-aryl migration is found to be media controlled. Effect of substituents on the migratory aptitude and a direct access to phenylacetic acids, in practical yields, has been described.

  已经在不同的溶剂系统中研究了取代的α-氯乙酰苯的光解，其中发现1,2-芳基迁移受介质控制。已经描述了取代基对迁移能力和以实际产率直接获得苯乙酸的影响。
• 4-Hydroxyphenacyl Ammonium Salts: A Photoremovable Protecting Group for Amines in Aqueous Solutions
  作者：Iwona Bownik、Peter Šebej、Jaromír Literák、Dominik Heger、Zdeněk Šimek、Richard S. Givens、Petr Klán

  DOI：10.1021/acs.joc.5b01770

  日期：2015.10.2

  p-hydroxyphenacyl (pHP) ammonium caged derivatives at 313 nm releases primary and secondary amines or ammonia in nearly quantitative yields via the photo-Favorskii reaction when conducted in acidic or neutral aqueous buffered media. The reaction efficiencies are strongly dependent on the pH with the most efficient and highest yields obtained when the pH of the media maintains the ammonium and p-hydroxyl groups

  当在酸性或中性水性缓冲介质中进行光-Favorskii反应时，在313 nm处辐照N-保护的对羟基苯甲酰（pHP）铵笼蔽的衍生物会释放伯胺和仲胺或氨，并通过光-Favorskii反应以接近定量的产率释放出伯胺和仲胺或氨。当介质的pH值保持铵和对羟基为共轭酸时，反应效率主要取决于pH值，从而获得最有效和最高的收率。例如，在酸性pH值从3.9到6.6时，简单仲胺释放的总量子产率为0.5，而在中性pH 7.0时下降为0.1，在pH 8.4时下降为0.01。形态研究提供了酸碱特性，有助于定义反应的范围和限制。当p K a铵盐基团的酚醛基团比酚羟基基团的酚醛基团的胺基团的酚醛基团的酚醛基团的酚醛基团的酚醛基团的酚醛基团的铵盐基团的酚醛酸基团的酚醛基团的铵盐基团低。氨基的离去基团能力。反过来，这降低了发生光-Favorskii重排反应的倾向，并为其他竞争性光还原过程打开了反应途径。
• Poly(ester-amide) derived from p-hydroxybenzoic acid, 2,6-naphthalene-dicarboxylic acid and aromatic monomer capable of forming an amide linkage
  申请人：CELANESE CORPORATION

  公开号：EP0063881A1

  公开（公告）日：1982-11-03

  A melt processable poly(ester-amide) which is capable of forming an anisotropic melt phase is provided. The poly(ester-amide) of the present invention consists essentially of the recurring units (a) p-oxybenzoyl moiety, (b) 2,6-dicarboxynaphthalene moiety, (c) aromatic moiety capable of forming an amide linkage in the polymer, and, optionally, (d) p-dioxyphenyl moiety and (e) other carbocyclic dicarboxyl moiety, in the proportions indicated. Preferably, the aromatic moiety capable of forming an amide linkage is derived from p-aminophenol or p-phenylene-diamine. The carbocyclic dicarboxyl moiety is preferably aromatic. The resulting poly-(ester-amide) exhibits a melting temperature below approximately 400°C, preferably below approximately 350°C. The poly(ester-amide) of the present invention is preferably formed by a melt polymerization technique.

  本发明提供了一种能够形成各向异性熔相的可熔融加工聚（酯-酰胺）。本发明的聚（酯-酰胺）主要由以下递归单元组成：(a) 对氧苯甲酰基；(b) 2,6-二甲萘基；(c) 能在聚合物中形成酰胺键的芳香基；以及，任选地，(d) 对二氧苯基和 (e) 其他碳环二羧基，比例如图所示。能形成酰胺连接的芳香基团最好来自对氨基苯酚或对苯二胺。碳环二羧基最好是芳香族。所得聚酯酰胺的熔点低于约 400°C，最好低于约 350°C。本发明的聚（酯-酰胺）最好通过熔融聚合技术形成。
• Liquid-crystalline resin composition and precision moldings of the composition
  申请人：TORAY INDUSTRIES, INC.

  公开号：EP0856558A1

  公开（公告）日：1998-08-05

  Disclosed are a liquid-crystalline resin composition comprising (A) from 20 to 99 parts by weight of a liquid-crystalline resin and (B) from 1 to 80 parts by weight of aluminium borate whiskers of which the grain size distribution as obtained through laser diffractometry is such that D90/D10 is from 7.5 to 20, and precision moldings of the composition.

  本发明公开了一种液晶树脂组合物，该组合物包含 (A) 20 至 99 份（按重量计）液晶树脂和 (B) 1 至 80 份（按重量计）硼酸铝晶须，通过激光衍射仪获得的晶粒尺寸分布使 D90/D10 为 7.5 至 20。
• LIQUID CRYSTAL POLYESTER RESIN FOR LAMINATE, LIQUID CRYSTAL POLYESTER RESIN COMPOSITION, LAMINATE, AND LIQUID CRYSTAL POLYESTER RESIN FILM
  申请人：Toray Industries, Inc.

  公开号：EP3842468A1

  公开（公告）日：2021-06-30

  Disclosed is a liquid crystal polyester resin for laminate, wherein, in the molecular weight distribution of an absolute molecular weight measured by the gel permeation chromatograph/light scattering method, the area fraction of the portion having an absolute molecular weight of 10,000 or less is 10 to 40%, and the area fraction of the portion having an absolute molecular weight of 50,000 or more is 3 to 20%, relative to 100% of the total peak area. Provided is a liquid crystal polyester resin for laminate, which is capable of obtaining a film having excellent metal adhesion and tensile properties. Also provided are a liquid crystal polyester resin composition which has excellent solubility and is capable of handling at a low temperature and obtaining a film which is free from cracks and has a uniform thickness, and a laminate and a liquid crystal polyester resin film comprising the same.

  本发明公开了一种层压板用液晶聚酯树脂，其中，相对于总峰值面积的 100%，在凝胶渗透色谱/光散射法测定的绝对分子量分布中，绝对分子量为 10,000 或以下的部分的面积分数为 10 至 40%，绝对分子量为 50,000 或以上的部分的面积分数为 3 至 20%。本发明提供了一种层压板用液晶聚酯树脂，它能获得具有优异金属粘附性和拉伸性的薄膜。此外，还提供了一种液晶聚酯树脂组合物，该组合物具有优异的溶解性，能够在低温下处理并获得无裂纹且厚度均匀的薄膜，以及包含该组合物的层压板和液晶聚酯树脂薄膜。