(E)-3-<2-(propen-2-yl)phenyl>propenoic acid | 6116-91-2

• 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)-3-<2-(propen-2-yl)phenyl>propenoic acid
• 英文别名: (E)-2-benzylidenepent-4-enoic acid；(2E)-2-benzylidenepent-4-enoic acid
• CAS: 6116-91-2
• 化学式: C₁₂H₁₂O₂
• 分子量: 188.226
• InChiKey: BXCGGNLNNHXNIE-PKNBQFBNSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  14
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.08
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (E)-3-<2-(propen-2-yl)phenyl>propenoic acid 在 硫酸 作用下， 反应 1.5h， 以84%的产率得到5-methyl-3-<(E)-phenylmethylidene>dihydrofuran-2(3H)-one
  参考文献：
  名称：

  Efficient Synthesis of α ‐Benzylidene‐ γ ‐methyl‐ γ ‐butyrolactones

  摘要：

  A concise synthesis of alpha-benzylidene-gamma-methyl-gamma-butylolactones 5a-g from substituted benzaldehydes is described. Compounds la-g on reaction with phosphorane 2, provide the pentenoates 3a-g, which can be hydrolyzed to the acids 4a-g. The latter are cyclized to the corresponding butyrolactones 5a-g in excellent yields. The pentenoates 3a-g, on acid catalyzed cyclization, also provide 5a-g in very high yields.

  DOI：

  10.1002/1522-2675(200210)85:10<3525::aid-hlca3525>3.0.co;2-#
• 作为产物：
  描述：

  ethyl 2-(triphenyl-λ⁵-phosphanylidene)pent-4-enoate 在 氢氧化钾 、 silica gel 作用下， 以 乙醇 为溶剂， 反应 6.17h， 生成 (E)-3-<2-(propen-2-yl)phenyl>propenoic acid
  参考文献：
  名称：

  Efficient Synthesis of α ‐Benzylidene‐ γ ‐methyl‐ γ ‐butyrolactones

  摘要：

  A concise synthesis of alpha-benzylidene-gamma-methyl-gamma-butylolactones 5a-g from substituted benzaldehydes is described. Compounds la-g on reaction with phosphorane 2, provide the pentenoates 3a-g, which can be hydrolyzed to the acids 4a-g. The latter are cyclized to the corresponding butyrolactones 5a-g in excellent yields. The pentenoates 3a-g, on acid catalyzed cyclization, also provide 5a-g in very high yields.

  DOI：

  10.1002/1522-2675(200210)85:10<3525::aid-hlca3525>3.0.co;2-#

文献信息

• PDLC cell
  申请人：——

  公开号：US20020045014A1

  公开（公告）日：2002-04-18

  The invention provides a method of filing a PDLC cell, a polymerizable mixture suitable for this purpose as well as a display device provided with such a PDLC cell. The mixture in accordance with the invention comprises two types of non-volatile reactive monomers, the first type of monomer being readily miscible with liquid crystalline material and the second type of monomer being poorly miscible with the liquid crystalline material. Such mixtures prove to be very stable. In addition, when such mixtures are used in cells, problems regarding compositional drift do not occur. Cells in which the inventive mixture is used demonstrate a relatively low hysteresis as well as a relatively low switching voltage. By virtue thereof, it is very attractive to use these cells in a display device.

  本发明提供了一种制作 PDLC 电池的方法、一种适用于这一目的的可聚合混合物以 及一种装有这种 PDLC 电池的显示装置。本发明的混合物包括两种非挥发性活性单体，第一种单体容易与液晶材料混溶，第二种单体与液晶材料的混溶性较差。事实证明，这种混合物非常稳定。此外，在电池中使用这种混合物时，也不会出现成分漂移的问题。使用本发明混合物的电池具有相对较低的滞后性和相对较低的开关电压。因此，在显示设备中使用这种电池非常有吸引力。
• Gibbard, Howard C.; Moody, Christopher J.; Rees, Charles W., Journal of the Chemical Society. Perkin transactions I, 1985, p. 723 - 730
  作者：Gibbard, Howard C.、Moody, Christopher J.、Rees, Charles W.

  DOI：——

  日期：——
• PDLC CELL
  申请人：Koninklijke Philips Electronics N.V.

  公开号：EP0889942A1

  公开（公告）日：1999-01-13
• RADIATION-CURABLE COMPOSITION HAVING HIGH CURE SPEED
  申请人：DSM IP Assets B.V.

  公开号：EP0898589B1

  公开（公告）日：2004-12-15
• HOME AND FABRIC CARE COMPOSITIONS COMPRISING DYE-POLYMER COMPLEXES
  申请人：BASF SE

  公开号：EP2190966B1

  公开（公告）日：2012-12-26