methyl (E)-3-(4-acetamidophenyl)-2-cyanoprop-2-enoate

• 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: methyl (E)-3-(4-acetamidophenyl)-2-cyanoprop-2-enoate
• 化学式: C₁₃H₁₂N₂O₃
• 分子量: 244.25
• InChiKey: ZZKGGAYDHNIOPZ-YRNVUSSQSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.1
• 重原子数：
  18
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.15
• 拓扑面积：
  79.2
• 氢给体数：
  1
• 氢受体数：
  4

文献信息

• UV-absorbing condensation polymeric compositions and products therefrom
  申请人：EASTMAN KODAK COMPANY (a New Jersey corporation)

  公开号：EP0232204A2

  公开（公告）日：1987-08-12

  Compositions comprising polyester or polycarbonate having reacted therein a total of from about 1.0 to about 5,000 parts by weight per million parts by weight of polyester of at least one UV absorbing compound of the formula wherein R is alkyl or the like, X is carbonyl or sulfonyl, R' is hydrogen or a substituent, and Y and Z are hydrogen or substituents such as cyano or alkoxycarbonyl, with the provision that at least one of R, R1, Y, and Z is, or forms part of, or contains one or more reactive groups capable of undergoing a condensation reaction under polyester forming conditions, such that the UV absorbing compound is reacted into the polymer. The compound has a maximum light absorbance within the range of from about 320 nm to about 380 nm, which is nonextractable from the polyester and stable under the polyester processing conditions, for imparting UV screening properties to the polymer. Many products such as fruit juices, soft drinks, wines, food products, cosmetics and shampoos are deleteriously affected by UV light when packaged in clear plastic containers which pass significant portions of the available light at any wavelength from approximately 250 to 390 nm. By use of the present compounds polymeric containers can be manufactured which absorb these harmful wavelengths and therefore reduce or eliminate the UV light degradation of products packaged therein. A further advantage of the present polymeric compositions is that conventional polyester dyes and other additives such as pigments, fillers, brighteners and the like may be incorporated therein, and the UV screening properties of the methine compounds impart significant stabilization to both the polyester and the dyes.

  包含聚酯或聚碳酸酯的组合物，其中每百万份重量的聚酯中至少有一种紫外线吸收化合物与之发生反应，反应总量为约 1.0 至约 5000 份（按重量计）。 其中 R 是烷基或类似物，X 是羰基或磺酰基，R'是氢或取代基，Y 和 Z 是氢或取代基，如氰基或烷氧羰基，但 R、R1、Y 和 Z 中至少有一个是，或构成其中的一部分，或含有一个或多个反应基团，能在聚酯形成条件下发生缩合反应，从而使紫外线吸收化合物反应到聚合物中。该化合物的最大光吸收率在约 320 纳米到约 380 纳米的范围内，可从聚酯中分离出来，并在聚酯加工条件下保持稳定，从而赋予聚合物紫外线屏蔽性能。许多产品，如果汁、软饮料、葡萄酒、食品、化妆品和洗发水，在用透明塑料容器包装时，会受到紫外线的有害影响，因为透明塑料容器会通过大约 250 至 390 纳米波长的大部分可用光。使用本化合物可以制造出吸收这些有害波长的聚合容器，从而减少或消除其中包装产品的紫外线降解。本聚合物组合物的另一个优点是可以加入传统的聚酯染料和其他添加剂，如颜料、填料、增白剂等，而甲胺化合物的紫外线屏蔽特性可显著稳定聚酯和染料。
• US4661566A
  申请人：——

  公开号：US4661566A

  公开（公告）日：1987-04-28