(E)-4-[4-(dimethylamino)phenyl]-3-(ethoxycarbonyl)but-3-enoic acid

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 肉桂酸及其衍生物
• 英文名称: (E)-4-[4-(dimethylamino)phenyl]-3-(ethoxycarbonyl)but-3-enoic acid
• 英文别名: (E)-4-[4-(dimethylamino)phenyl]-3-ethoxycarbonylbut-3-enoic acid
• 化学式: C₁₅H₁₉NO₄
• 分子量: 277.32
• InChiKey: OCBYWZOOUAOMTA-FMIVXFBMSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  20
• 可旋转键数：
  7
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  66.8
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  (E)-4-[4-(dimethylamino)phenyl]-3-(ethoxycarbonyl)but-3-enoic acid 、 乙酸酐 在 sodium acetate 作用下， 反应 4.0h， 生成 ethyl 4-acetoxy-6-(dimethylamino)-2-naphthoate
  参考文献：
  名称：

  The photophysical behavior of the photochromic naphthopyran derivative having photo-switching ability

  摘要：

  The photophysical behavior of the photochromic naphthopyran derivative 9 with photo-switching ability has been investigated in solution phase as well as in crystalline form. The proposed switching motifs might be a versatile framework in the development of photonic devices whose properties can be toggled between two states on exposure to electromagnetic radiations. The closed form of 9 undergoes reversible transformation upon irradiation with light by changing the molecular structure from ring closed conformation 9 to the ring opened form 10. The compound 9 exhibited first absorption signal at 238 nm with shoulder peak at 261 nm and second absorption signal at 353 nm while on photo-irradiation, the colorless solution of 9 turn to colored and there was ratiometric downfall in the signal intensity for shoulder signal at 261 nm as well as second absorption signal at 353 nm and ultimately results in the disappearance of these both signal after 20 min of irradiations. Meanwhile, the colorimetric change in the reaction solution and considerable shift in the absorption and emission signal intensity as well as position suggest the conformational changes in the molecules from less conjugate conformation 9 to the extended conjugated conformation 10. (C) 2014 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.saa.2014.10.016
• 作为产物：
  描述：

  对二甲氨基苯甲醛 、 丁二酸二乙酯 在 乙醇 、 sodium 作用下， 生成 (E)-4-[4-(dimethylamino)phenyl]-3-(ethoxycarbonyl)but-3-enoic acid
  参考文献：
  名称：

  The photophysical behavior of the photochromic naphthopyran derivative having photo-switching ability

  摘要：

  The photophysical behavior of the photochromic naphthopyran derivative 9 with photo-switching ability has been investigated in solution phase as well as in crystalline form. The proposed switching motifs might be a versatile framework in the development of photonic devices whose properties can be toggled between two states on exposure to electromagnetic radiations. The closed form of 9 undergoes reversible transformation upon irradiation with light by changing the molecular structure from ring closed conformation 9 to the ring opened form 10. The compound 9 exhibited first absorption signal at 238 nm with shoulder peak at 261 nm and second absorption signal at 353 nm while on photo-irradiation, the colorless solution of 9 turn to colored and there was ratiometric downfall in the signal intensity for shoulder signal at 261 nm as well as second absorption signal at 353 nm and ultimately results in the disappearance of these both signal after 20 min of irradiations. Meanwhile, the colorimetric change in the reaction solution and considerable shift in the absorption and emission signal intensity as well as position suggest the conformational changes in the molecules from less conjugate conformation 9 to the extended conjugated conformation 10. (C) 2014 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.saa.2014.10.016

文献信息

• Photochromic Polymer and Composition Comprising Photochromic Polymer
  申请人：Evans Richard Alexander

  公开号：US20110147681A1

  公开（公告）日：2011-06-23

  A photochromic polymer comprising at least one siloxane oligomer and at least two photochromic groups covalently linked to one or both terminuses of the siloxane oligomer and compositions containing photochromic siloxane polymers with narrow polydispersity. The photochromic polymer enhances switching speed in rigid host polymers.

  一种光致变色聚合物，包括至少一个硅氧烷寡聚物和至少两个光致变色基团，与硅氧烷寡聚物的一个或两个端点共价连接，并且含有具有狭窄聚分散度的光致变色硅氧烷聚合物的组合物。该光致变色聚合物可以提高刚性主体聚合物的切换速度。
• PHOTOCHROMIC POLYMER AND COMPOSITION COMPRISING PHOTOCHROMIC POLYMER
  申请人：Advanced Polymerik Pty Ltd

  公开号：EP2294114B1

  公开（公告）日：2012-08-15
• US8865029B2
  申请人：——

  公开号：US8865029B2

  公开（公告）日：2014-10-21
• [EN] PHOTOCHROMIC POLYMER AND COMPOSITION COMPRISING PHOTOCHROMIC POLYMER<br/>[FR] POLYMÈRE PHOTOCHROMIQUE ET COMPOSITION COMPRENANT UN POLYMÈRE PHOTOCHROMIQUE
  申请人：ADVANCED POLYMERIK PTY LTD

  公开号：WO2009146509A1

  公开（公告）日：2009-12-10

  A photochromic polymer comprising at least one siloxane oligomer and at least two photochromic groups covalently linked to one or both terminuses of the siloxane oligomer and compositions containing photochromic siloxane polymers with narrow polydispersity. The photochromic polymer enhances switching speed in rigid host polymers.
• The photophysical behavior of the photochromic naphthopyran derivative having photo-switching ability
  作者：Moon-Hwan Kim、Muhammad Saleem、Ji-Su Seo、Chang-Shik Choi、Ki Hwan Lee

  DOI：10.1016/j.saa.2014.10.016

  日期：2015.2

  The photophysical behavior of the photochromic naphthopyran derivative 9 with photo-switching ability has been investigated in solution phase as well as in crystalline form. The proposed switching motifs might be a versatile framework in the development of photonic devices whose properties can be toggled between two states on exposure to electromagnetic radiations. The closed form of 9 undergoes reversible transformation upon irradiation with light by changing the molecular structure from ring closed conformation 9 to the ring opened form 10. The compound 9 exhibited first absorption signal at 238 nm with shoulder peak at 261 nm and second absorption signal at 353 nm while on photo-irradiation, the colorless solution of 9 turn to colored and there was ratiometric downfall in the signal intensity for shoulder signal at 261 nm as well as second absorption signal at 353 nm and ultimately results in the disappearance of these both signal after 20 min of irradiations. Meanwhile, the colorimetric change in the reaction solution and considerable shift in the absorption and emission signal intensity as well as position suggest the conformational changes in the molecules from less conjugate conformation 9 to the extended conjugated conformation 10. (C) 2014 Elsevier B.V. All rights reserved.