r-1,t-3-Bis(1-methyl-2-pyridinio)-c-2,t-4-bis(2-pyridyl)cyclobutan-diiodid | 82649-87-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪类
• 英文名称: r-1,t-3-Bis(1-methyl-2-pyridinio)-c-2,t-4-bis(2-pyridyl)cyclobutan-diiodid
• CAS: 82649-87-4
• 化学式: C₂₆H₂₆N₄*2I
• 分子量: 648.328
• InChiKey: TWXQSLKKSFEJSB-ZBOJRSDKSA-M

反应信息

• 作为反应物：
  描述：

  trimethoxonium tetrafluoroborate 、 r-1,t-3-Bis(1-methyl-2-pyridinio)-c-2,t-4-bis(2-pyridyl)cyclobutan-diiodid 以 硝基甲烷 为溶剂， 以74%的产率得到r-1,c-2,t-3,t-4-Tetrakis(1-methyl-2-pyridinio)cyclobutan-tetra(tetrafluoroborat)
  参考文献：
  名称：

  Horner, Michael; Huenig, Siegfried, Liebigs Annalen der Chemie, 1982, # 6, p. 1183 - 1210

  摘要：

  DOI：
• 作为产物：
  描述：

  (E)-6-Methyl-6-azonia-2'-azastilbene iodide 反应 16.0h， 以99%的产率得到r-1,t-3-Bis(1-methyl-2-pyridinio)-c-2,t-4-bis(2-pyridyl)cyclobutan-diiodid
  参考文献：
  名称：

  [2+2] Photodimerization of bispyridylethylenes by a controlled shift of the protonation equilibrium

  摘要：

  Irradiation of trans-4,4'-bispyridylethylene in the presence of I equiv of concd HCl produced a syn dimer with high selectivity, whereas irradiation in the presence of more than 2 equiv of concd HCl or in the absence of HCl gave a mixture of dimers and by-products with much lower selectivity. This indicated that a suitable amount of acid served as a catalyst for the [2+2] photodimerization of BPEs through cation-pi interactions between the pyridinium and pyridine rings. (C) 2013 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2013.05.075

文献信息

• Azastilbenes. 2. Photodimerization
  作者：J. Vansant、S. Toppet、G. Smets、J. P. Declercq、G. Germain、M. Van Meerssche

  DOI：10.1021/jo01297a003

  日期：1980.4