1-(9-Ethylcarbazol-3-yl)-3,4-bis(2,4,5-trimethylthiophen-3-yl)pyrrole-2,5-dione | 1454710-76-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吲哚及其衍生物
• 英文名称: 1-(9-Ethylcarbazol-3-yl)-3,4-bis(2,4,5-trimethylthiophen-3-yl)pyrrole-2,5-dione
• 英文别名: 1-(9-ethylcarbazol-3-yl)-3,4-bis(2,4,5-trimethylthiophen-3-yl)pyrrole-2,5-dione
• CAS: 1454710-76-9
• 化学式: C₃₂H₃₀N₂O₂S₂
• 分子量: 538.734
• InChiKey: ZWYQBCNJCJBQIH-UHFFFAOYSA-N

物化性质

• 熔点：
  80.2-81.1 °C
• 沸点：
  676.7±55.0 °C(predicted)
• 密度：
  1.29±0.1 g/cm3(Temp: 20 °C; Press: 760 Torr)(predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  7.7
• 重原子数：
  38
• 可旋转键数：
  4
• 环数：
  6.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  98.8
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  3-硝基-n-乙基咔唑 在 palladium 10% on activated carbon 、 一水合肼 、 三乙胺 作用下， 以 四氢呋喃 、 甲醇 、 乙醇 、 甲苯 为溶剂， 反应 25.08h， 生成 1-(9-Ethylcarbazol-3-yl)-3,4-bis(2,4,5-trimethylthiophen-3-yl)pyrrole-2,5-dione
  参考文献：
  名称：

  Carbazole N-substituent effect upon DTMA: stabilizing and photochromic modulating

  摘要：

  Dithienylmaleimide derivatives 7-27 were synthesized by introducing N-substituted carbazole for photo-stabilizing purpose, and the structures were fully confirmed. The photochromism and photo-stability were recorded via UV-vis spectra. Only ortho compounds 8-17 with N-substituents on carbazole moiety showed escalated photochromic change, while compound 7 and the para counterparts 18-27 showed no appreciable photochromism. Additionally, compounds 8-18 exhibited good photo-stability except 17 under 254 nm irradiation. The unstability of 17 may probably due to overrunning hindrance. These photochromic patterns indicated that hindrance and electronic effect mutually paid a decisive influence on the photochromism and photo-stability, which potentially exploited a new way to construct novel photochromic materials with regulable and conceivable performance. (c) 2013 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2013.07.040

文献信息

• Carbazole N-substituent effect upon DTMA: stabilizing and photochromic modulating
  作者：Zhiming Huo、Zhipeng Li、Tingting Wang、Heping Zeng

  DOI：10.1016/j.tet.2013.07.040

  日期：2013.10

  Dithienylmaleimide derivatives 7-27 were synthesized by introducing N-substituted carbazole for photo-stabilizing purpose, and the structures were fully confirmed. The photochromism and photo-stability were recorded via UV-vis spectra. Only ortho compounds 8-17 with N-substituents on carbazole moiety showed escalated photochromic change, while compound 7 and the para counterparts 18-27 showed no appreciable photochromism. Additionally, compounds 8-18 exhibited good photo-stability except 17 under 254 nm irradiation. The unstability of 17 may probably due to overrunning hindrance. These photochromic patterns indicated that hindrance and electronic effect mutually paid a decisive influence on the photochromism and photo-stability, which potentially exploited a new way to construct novel photochromic materials with regulable and conceivable performance. (c) 2013 Elsevier Ltd. All rights reserved.