N-<(4-Nitrophenyl)thio>-7-tert-butyl-1-aminopyrene

• 分子结构分类: 有机化合物 - 苯类化合物 - 芘
• 英文名称: N-<(4-Nitrophenyl)thio>-7-tert-butyl-1-aminopyrene
• 英文别名: 7-tert-butyl-N-(4-nitrophenyl)sulfanylpyren-1-amine
• 化学式: C₂₆H₂₂N₂O₂S
• 分子量: 426.539
• InChiKey: WTQTVLTXAADHQK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  8.5
• 重原子数：
  31
• 可旋转键数：
  4
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.15
• 拓扑面积：
  83.2
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  4,4'-二硝基二苯二硫醚 在 氯 、 三乙胺 作用下， 以 四氢呋喃 为溶剂， 反应 2.5h， 生成 N-<(4-Nitrophenyl)thio>-7-tert-butyl-1-aminopyrene
  参考文献：
  名称：

  Generation, Isolation, and Characterization of N-(Arylthio)-7-tert-butyl- and N-(Arylthio)-2,7-di-tert-butyl-1-pyrenylaminyl Radicals

  摘要：

  N-(Arylthio)-7-tert-butyl-1-pyrenylaminyl (2) and N-[(4-nitrophenyl)thio]-2,7-di-tert-butyl-1-pyrenylaminyl radicals (3) are prepared by PbO2 oxidation of N-(arylthio)-7-tert-butyl-1-aminopyrenes and N-[(4-nitrophenyl)thio] -2,7-di-tert-butyl-1-aminopyrene, respectively, and studied by ESR and ENDOR spectroscopy. The kinetic ESR study shows that, while aminyls 2 gradually decompose in solution at room temperature, aminyl 3 is quite persistent, even in refluxing benzene, and shows no tendency to dimerize, even at low temperatures. These interesting properties of 3 permit us to isolate 3 as radical crystals in 28-31% yield. The hyperfine splitting (hfs) constants of 2 and 3, determined by ESR and ENDOR spectroscopic methods, show an extensive delocalization of the unpaired electron onto the pyrene ring. Comparison of the hfs constants of 2 and 3 shows that a more extensive delocalization of the spin into the pyrene ring takes place in 3. This is accounted for in terms of the difference in the conformations of 2 and 3.

  DOI：

  10.1021/jo00091a015

文献信息

• Generation, Isolation, and Characterization of N-(Arylthio)-7-tert-butyl- and N-(Arylthio)-2,7-di-tert-butyl-1-pyrenylaminyl Radicals
  作者：Yozo Miura、Eiji Yamano、Akio Tanaka、Jun Yamauchi

  DOI：10.1021/jo00091a015

  日期：1994.6

  N-(Arylthio)-7-tert-butyl-1-pyrenylaminyl (2) and N-[(4-nitrophenyl)thio]-2,7-di-tert-butyl-1-pyrenylaminyl radicals (3) are prepared by PbO2 oxidation of N-(arylthio)-7-tert-butyl-1-aminopyrenes and N-[(4-nitrophenyl)thio] -2,7-di-tert-butyl-1-aminopyrene, respectively, and studied by ESR and ENDOR spectroscopy. The kinetic ESR study shows that, while aminyls 2 gradually decompose in solution at room temperature, aminyl 3 is quite persistent, even in refluxing benzene, and shows no tendency to dimerize, even at low temperatures. These interesting properties of 3 permit us to isolate 3 as radical crystals in 28-31% yield. The hyperfine splitting (hfs) constants of 2 and 3, determined by ESR and ENDOR spectroscopic methods, show an extensive delocalization of the unpaired electron onto the pyrene ring. Comparison of the hfs constants of 2 and 3 shows that a more extensive delocalization of the spin into the pyrene ring takes place in 3. This is accounted for in terms of the difference in the conformations of 2 and 3.