1,2-Bis(2-bromobenzoyl)benzene | 152897-29-5

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 1,2-Bis(2-bromobenzoyl)benzene
• 英文别名: [2-(2-Bromobenzoyl)phenyl]-(2-bromophenyl)methanone
• CAS: 152897-29-5
• 化学式: C₂₀H₁₂Br₂O₂
• 分子量: 444.122
• InChiKey: SBDBGHXXMHVOHM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6
• 重原子数：
  24
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  34.1
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  1,2-Bis(2-bromobenzoyl)benzene 在 正丁基锂 、 ammonium cerium(IV) nitrate 、 Celite 、 red P₄ 、 氢碘酸 、 碘 、 pyridinium chlorochromate 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 81.0h， 生成 <16>Orthocyclophanepentaone
  参考文献：
  名称：

  Orthocyclophanes. 2. Starands, a new family of macrocycles of spirobicyclic polyketals with a 2n-crown-n moiety

  摘要：

  Synthesis and functionalization of higher members of the [1n]orthocyclophanes, or [1n]OCPs, have been investigated. Oxidation of the benzylic methylenes in [1n]OCPs gave the polyoxo derivatives. Exhaustive oxidation of all methylenes in even-numbered [1n]OCPs gave rearranged isomers of the cyclopolyketal structure instead of the corresponding polyoxo derivatives. We propose the class name ''starands'' for this new family of crown compounds for their star-shaped crown ether structure. Detailed synthesis and characterization of two starands are described.

  DOI：

  10.1021/jo00077a044
• 作为产物：
  描述：

  1-acetoxybuta-1,3-diene 、 1,4-Bis(2-bromophenyl)-2-butyne-1,4-dione 以 苯 为溶剂， 反应 24.0h， 以82%的产率得到1,2-Bis(2-bromobenzoyl)benzene
  参考文献：
  名称：

  Orthocyclophanes. 2. Starands, a new family of macrocycles of spirobicyclic polyketals with a 2n-crown-n moiety

  摘要：

  Synthesis and functionalization of higher members of the [1n]orthocyclophanes, or [1n]OCPs, have been investigated. Oxidation of the benzylic methylenes in [1n]OCPs gave the polyoxo derivatives. Exhaustive oxidation of all methylenes in even-numbered [1n]OCPs gave rearranged isomers of the cyclopolyketal structure instead of the corresponding polyoxo derivatives. We propose the class name ''starands'' for this new family of crown compounds for their star-shaped crown ether structure. Detailed synthesis and characterization of two starands are described.

  DOI：

  10.1021/jo00077a044

文献信息

• Poly(arylene thioether)block copolymer and production process thereof
  申请人：KUREHA KAGAKU KOGYO KABUSHIKI KAISHA

  公开号：EP0369620A2

  公开（公告）日：1990-05-23

  Disclosed herein are a poly(arylene thioether) block copolymer alternately comprising (A) at least one poly-(arylene thioether-ketone) block having predominant recurring units of the formula wherein the -CO- and -S- are in the para position to each other and (B) at least one poly(arylene thioether) block having predominant recurring units of the formula (a) the ratio of the total amount of the poly(arylene thioether) block (B) to the total amount of the poly-(arylene thioether-ketone) block (A) being within a range of 0.05-5 by weight, (b) the average polymerization degree of the poly(arylene thioether) block (B) being at least 10, and (c) said block copolymer having a melt viscosity of 2-100,000 poises as measured at 350 C and a shear rate of 1,200/sec as well as a production process the poly(arylene thioether) block copolymer. The invention also provides a stabilized poly(arylene thioether) block copolymer containing a basic compound either alone or in combination with an antioxidant.

  本文公开了一种聚(芳基硫醚)嵌段共聚物，它交替包含(A)至少一个聚(芳基硫醚酮)嵌段，该嵌段具有如下式的主要循环单元 其中-CO-和-S-互为对位，以及 (B) 至少一个具有式中主要递归单元的聚(芳基硫醚)嵌段 (a) 聚(芳基硫醚)嵌段(B)的总量与聚(芳基硫醚酮)嵌段(A)的总量之比为 0.(b) 聚(芳基硫醚)嵌段(B)的平均聚合度至少为 10，(c) 所述嵌段共聚物在 350℃和 1,200/sec 的剪切速率下测得的熔融粘度为 2-100,000 波，以及聚(芳基硫醚)嵌段共聚物的生产工艺。本发明还提供了一种稳定的聚芳基硫醚嵌段共聚物，其中含有一种碱性化合物，可以单独使用，也可以与抗氧化剂结合使用。
• US5120808A
  申请人：——

  公开号：US5120808A

  公开（公告）日：1992-06-09
• US5153264A
  申请人：——

  公开号：US5153264A

  公开（公告）日：1992-10-06
• US5153278A
  申请人：——

  公开号：US5153278A

  公开（公告）日：1992-10-06
• US5153279A
  申请人：——

  公开号：US5153279A

  公开（公告）日：1992-10-06