α,α'-dibromo-2,4,5,6-tetrachloro-m-xylene | 21969-67-5

• 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: α,α'-dibromo-2,4,5,6-tetrachloro-m-xylene
• 英文别名: α,α'-Dibrom-2,4,5,6-tetrachlor-m-xylol；1,3-bis-(bromomethyl)-2,4,5,6-tetrachlorobenzene；1,3-Bis(bromomethyl)-2,4,5,6-tetrachlorobenzene
• CAS: 21969-67-5
• 化学式: C₈H₄Br₂Cl₄
• 分子量: 401.74
• InChiKey: XCBJIROLICUXQV-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.6
• 重原子数：
  14
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为产物：
  描述：

  Alpha,Alpha,2,4,5,6-六氯间二甲苯 在 potassium bromide 作用下， 以 丙酮 为溶剂， 生成 α,α'-dibromo-2,4,5,6-tetrachloro-m-xylene
  参考文献：
  名称：

  2,6-二氯苄基碘化物和一些 α,α'-m-二甲苯基卤化物的内旋转屏障。苯扎卤化物中过渡态构象的实验证据

  摘要：

  α,α'-di-X-2,4,5,6-dichloro-m-二甲苯 (X = Cl, Br, I ) 的内旋势垒由质子磁共振能带分析确定。它们的大小是实验性的……

  DOI：

  10.1139/v74-350

文献信息

• Method for the preparation of bis-(bromomethyl)-tetrachlorobenzenes and
  申请人：Dynamit Nobel Aktiengesellschaft

  公开号：US03981936A1

  公开（公告）日：1976-09-21

  A process for preparing a bis-(bromomethyl)-tetrachlorobenzene which comprises contacting a bis-(chloromethyl)-tetrachlorobenzene with a bromide of an element of the first to the third group of the Periodic Table, preferably in a solvent of the bis-(chloromethyl)-tetrachlorobenzene which solvent is a non-solvent for the bis-(bromomethyl)-tetrachlorobenzene being prepared; a stabilized polymeric composition comprising a polymer and a bis-(bromomethyl)-tetrachlorobenzene, preferably containing additionally a compound of antimony or boron.

  一种制备双-(溴甲基)-四氯苯的方法，包括将双-(氯甲基)-四氯苯与周期表第一至第三族元素的溴化物接触，优选在双-(氯甲基)-四氯苯的溶剂中进行，该溶剂对所制备的双-(溴甲基)-四氯苯是非溶剂；一种稳定的聚合物组合物，包括聚合物和双-(溴甲基)-四氯苯，优选还包括锑或硼化合物。
• Effect of porphyrin ring distortion on the spectral and electrochemical properties of short-chain basket-handle porphyrins
  作者：Mangalampalli Ravikanth、Damodar Reddy、Ashutosh Misra、Tavarekere K. Chandrashekar

  DOI：10.1039/dt9930001137

  日期：——

  The effect of porphyrin ring distortion on the spectral and electrochemical properties of short-chain basket-handle porphyrins has been investigated. The covalent attachment of opposite phenyl rings of meso-5,10,15,20-tetraphenylporphyrin (H2tpp) by short bridging groups of varying nature and length induces distortion in the porphyrin ring. Optical absorption studies indicate large bathochromic shifts (502-1139 cm-1) for both Q and Soret bands and the magnitude of these shifts are linearly correlated with the degree of distortion. The potential values for the porphyrin ring oxidation and reduction were shifted to less-positive (180-260 mV) and to more-negative (280-390 mV) values respectively relative to planar H-2tpp. The magnitude of the shifts in the optical absorption bands and redox potentials are independent of the nature of the bridging chain. The origin of these shifts are traced to structural effects caused due to the introduction of a short bridging group rather than to the electronic effect of the bridging group. Introduction of Cu2+ into the porphyrin core does not affect the degree of distortion and ESR studies indicate no significant change in the electronic structure of the Cu2+ ion relative to [Cu(tpp)].
• ENDGLAENDER F.; FUENTEN H. AUS DER; STEFFEN K.-D.; WEISGERBER G.; ZOCHE G+, CHEM.-ZTG., 1979, 103, NO 1, 9-17
  作者：ENDGLAENDER F.、 FUENTEN H. AUS DER、 STEFFEN K.-D.、 WEISGERBER G.、 ZOCHE G+

  DOI：——

  日期：——
• US3981936A
  申请人：——

  公开号：US3981936A

  公开（公告）日：1976-09-21
• US4039587A
  申请人：——

  公开号：US4039587A

  公开（公告）日：1977-08-02