1-(2-bromophenyl)-2-(3-bromophenyl)ethyne | 292868-55-4

• 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-bromophenyl)-2-(3-bromophenyl)ethyne
• 英文别名: 2,3'-dibromodiphenylacetylene；1-Bromo-2-[2-(3-bromophenyl)ethynyl]benzene
• CAS: 292868-55-4
• 化学式: C₁₄H₈Br₂
• 分子量: 336.026
• InChiKey: FKCRTOKISIOTEV-UHFFFAOYSA-N

物化性质

• 熔点：
  54-56 °C
• 沸点：
  403.3±30.0 °C(Predicted)
• 密度：
  1.74±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  5.3
• 重原子数：
  16
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  N,N'-dimethyl-N-phenyl-1,4-benzenediamine 、 1-(2-bromophenyl)-2-(3-bromophenyl)ethyne 在 tris(dibenzylideneacetone)dipalladium (0) 、 sodium t-butanolate 作用下， 以 甲苯 为溶剂， 以53%的产率得到1-N,4-N-dimethyl-4-N-[3-[2-[2-[N-methyl-4-(N-methylanilino)anilino]phenyl]ethynyl]phenyl]-1-N-phenylbenzene-1,4-diamine
  参考文献：
  名称：

  Ferromagnetic Spin Alignment in Head-to-Tail Coupled Oligo(1,4-phenyleneethynylene)s and Oligo(1,4-phenylenevinylene)s Bearing Pendant p-Phenylenediamine Radical Cations

  摘要：

  The intramolecular and long-range ferromagnetic coupling between p-phenylenediamine radical cations in head-to-tail coupled oligo(1,4-phenyleneethynylene)s and oligo(1,4-phenylenvinylene)s between neighbors and next-nearest neighbors is described. UV/vis/near-IR experiments show that the radical cations are localized in the pendant p-phenylenediamine units of the conjugated oligomers. The ESR spectra of these oligo(1,4-phenyleneethynylene) and oligo(1,4-phenylenvinylene) di(radical cation)s are consistent with those of a triplet state. A linear behavior is observed for the doubly integrated ESR intensity of the Delta M-s = +/-1 and Delta M-s = +/-2 signals with the inverse temperature (I similar to 1/T), consistent with Curie's law. This behavior indicates a triplet ground-state diradical with a large triplet-singlet energy gap or possibly a degeneracy of singlet and triplet states.

  DOI：

  10.1021/jo000548o
• 作为产物：
  描述：

  (2-溴苯乙炔基)三甲基硅烷 在 bis-triphenylphosphine-palladium(II) chloride 、 copper(l) iodide 、 四丁基氟化铵 、 三乙胺 作用下， 以 四氢呋喃 为溶剂， 反应 3.0h， 生成 1-(2-bromophenyl)-2-(3-bromophenyl)ethyne
  参考文献：
  名称：

  Ferromagnetic Spin Alignment in Head-to-Tail Coupled Oligo(1,4-phenyleneethynylene)s and Oligo(1,4-phenylenevinylene)s Bearing Pendant p-Phenylenediamine Radical Cations

  摘要：

  The intramolecular and long-range ferromagnetic coupling between p-phenylenediamine radical cations in head-to-tail coupled oligo(1,4-phenyleneethynylene)s and oligo(1,4-phenylenvinylene)s between neighbors and next-nearest neighbors is described. UV/vis/near-IR experiments show that the radical cations are localized in the pendant p-phenylenediamine units of the conjugated oligomers. The ESR spectra of these oligo(1,4-phenyleneethynylene) and oligo(1,4-phenylenvinylene) di(radical cation)s are consistent with those of a triplet state. A linear behavior is observed for the doubly integrated ESR intensity of the Delta M-s = +/-1 and Delta M-s = +/-2 signals with the inverse temperature (I similar to 1/T), consistent with Curie's law. This behavior indicates a triplet ground-state diradical with a large triplet-singlet energy gap or possibly a degeneracy of singlet and triplet states.

  DOI：

  10.1021/jo000548o

文献信息

• Double Elimination Protocol for Convenient Synthesis of Dihalodiphenylacetylenes: Versatile Building Blocks for Tailor-Made Phenylene-Ethynylenes
  作者：Akihiro Orita、Kazuhiko Miyamoto、Mikio Nakashima、Fangguo Ye、Junzo Otera

  DOI：10.1002/adsc.200404014

  日期：2004.6

  Dihalodiphenylacetylenes are conveniently synthesized by a double elimination reaction of β-substituted sulfones which are readily obtained from halogen-substituted benzyl sulfone and benzaldehyde derivatives. Halogens can be incorporated at any desired positions in the diphenylacetylene skeleton simply by choosing the substitution position of the halogen on the aromatic rings of the starting compounds

  二卤代二苯基乙炔可通过β-取代的砜的双消除反应方便地合成，所述β-取代的砜容易从卤素取代的苄基砜和苯甲醛衍生物获得。仅通过选择起始化合物的芳环上卤素的取代位置，就可以在二苯乙炔骨架中的任何所需位置掺入卤素。由此获得的具有不同卤素取代基的二苯基乙炔由于卤素的不同反应性而经历了顺序的碳-碳键形成。因此，可以在任何位置的二苯基乙炔骨架上结合各种部分，从而可以设计各种具有调节的结构和组成的量身定制的亚苯基-亚乙炔基。
• Ferromagnetic Spin Alignment in Head-to-Tail Coupled Oligo(1,4-phenyleneethynylene)s and Oligo(1,4-phenylenevinylene)s Bearing Pendant <i>p</i>-Phenylenediamine Radical Cations
  作者：Pauline J. van Meurs、René A. J. Janssen

  DOI：10.1021/jo000548o

  日期：2000.9.1

  The intramolecular and long-range ferromagnetic coupling between p-phenylenediamine radical cations in head-to-tail coupled oligo(1,4-phenyleneethynylene)s and oligo(1,4-phenylenvinylene)s between neighbors and next-nearest neighbors is described. UV/vis/near-IR experiments show that the radical cations are localized in the pendant p-phenylenediamine units of the conjugated oligomers. The ESR spectra of these oligo(1,4-phenyleneethynylene) and oligo(1,4-phenylenvinylene) di(radical cation)s are consistent with those of a triplet state. A linear behavior is observed for the doubly integrated ESR intensity of the Delta M-s = +/-1 and Delta M-s = +/-2 signals with the inverse temperature (I similar to 1/T), consistent with Curie's law. This behavior indicates a triplet ground-state diradical with a large triplet-singlet energy gap or possibly a degeneracy of singlet and triplet states.