2-(diphenylmethylidene)malonic acid | 4472-94-0

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2-(diphenylmethylidene)malonic acid
• 英文别名: benzhydrylidene-malonic acid；Benzhydryliden-malonsaeure；2-Benzhydrylidenepropanedioic acid
• CAS: 4472-94-0
• 化学式: C₁₆H₁₂O₄
• 分子量: 268.269
• InChiKey: KHMIRLPPSIGTQD-UHFFFAOYSA-N

物化性质

• 沸点：
  393.5±30.0 °C(Predicted)
• 密度：
  1.325±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.6
• 重原子数：
  20
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  74.6
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  2-(diphenylmethylidene)malonic acid 在 草酰氯 、 三乙胺 、 N,N-二甲基甲酰胺 作用下， 以 二氯甲烷 为溶剂， 反应 7.0h， 生成 (S,S)-N,N'-bis(2-hydroxy-1-isopropylethyl)-2-diphenylmethylidenemalonamide
  参考文献：
  名称：

  具有sp 2杂桥碳的丙二酸酯型双（恶唑啉）配体：合成及其在Friedel-Crafts烷基化和烯丙基烷基化中的应用

  摘要：

  合成了一系列简单且新颖的C 2对称的二苯基亚甲基丙二酸酯型双（恶唑啉）配体，并将其应用于Friedel-Crafts反应和烯丙基烷基化反应。铜（II）配合物的配体的图4b带有苄基，得到良好至优异的对映选择性为˚F - Ç吲哚和亚丙二之间加合物（高达> 99％ee）的，和钯配合物的配体的4C带有苯基，得到对烯丙基烷基化产物具有优异的对映选择性（高达94％ee）。

  DOI：

  10.1016/j.tet.2011.09.106
• 作为产物：
  描述：

  二氯二苯甲烷 在 氢氧化钾 、 乙醚 、 乙醇 作用下， 生成 2-(diphenylmethylidene)malonic acid
  参考文献：
  名称：

  Adickes, Journal fur praktische Chemie (Leipzig 1954), 1936, vol. <2> 145, p. 235,242

  摘要：

  DOI：

文献信息

• Epoxy resin compositions as used in producing composites with high wet glass transition temperatures and in adhesive applications
  申请人：HERCULES INCORPORATED

  公开号：EP0319008A2

  公开（公告）日：1989-06-07

  Thermosetting epoxy resin compositions, comprising a polyfunctional epoxy resins, dianhydride or diamine hardeners, and amide, imide, or amideimide oligomers,and their uses in making adhesives, or thermoset composites that exhibit a critical stress intensity factor (K1C) greater than 1.0 MPam½ while maintaining a wet Tg greater than about 120°C upon curing in the presence of inorganic or organic fibers, are described; the oligomers are terminated with amine, isocyanate or carboxylic acid derivative groups, have a number average moleculer weight from about 1000 to about 50,000 and a glass transition temperature of above about 150°C, while being soluble in the combination of the epoxy resin and the hardener at a temperature under about 150° C.

  本发明描述了由多官能团环氧树脂、二酸酐或二胺固化剂以及酰胺、亚胺或酰胺亚胺低聚物组成的热固性环氧树脂组合物及其在制造粘合剂或热固性复合材料中的用途，该组合物在无机或有机纤维存在下固化时，临界应力强度因子（K1C）大于1.0 MPam½，同时在无机或有机纤维存在下固化时保持大于约 120°C 的湿 Tg；所述低聚物以胺、异氰酸酯或羧酸衍生物基团为端基，具有约 1000 至约 50,000 的平均分子量和高于约 150°C 的玻璃化转变温度，同时在低于约 150°C 的温度下可溶于环氧树脂和固化剂的组合中。
• Bismaleimide compositions containing high glass transition temperature and soluble reactive oligomers and composites prepared therefrom
  申请人：HERCULES INCORPORATED

  公开号：EP0363524A1

  公开（公告）日：1990-04-18

  Described are (1) terminally unsaturated oligomers having terminal amine groups or terminal carboxylic acid derivative groups and glass transition temperatures (Tg) above about 170°, in which the unsaturated moieties have two double bonds in conjugated relationship, and which are soluble in uncured multifunctional maleimides, and (2) thermosetting resins com­prising mixtures of the terminally unsaturated oligomers and the multifunctional maleimides. The cured resins have a fracture toughness, KIC of at least 1.0 MPam1/2 and glass transition temperatures of at least 200°C.

  描述了(1)具有末端胺基或末端羧酸衍生物基团且玻璃化转变温度（Tg）高于约 170°的末端不饱和低聚物，其中不饱和分子具有两个共轭双键，且可溶于未固化的多功能马来酰亚胺，以及(2)由末端不饱和低聚物和多功能马来酰亚胺混合物组成的热固性树脂。固化树脂的断裂韧性、KIC 至少为 1.0 MPam1/2，玻璃化温度至少为 200°C。
• READILY BONDABLE POLYESTER FILM
  申请人：TORAY INDUSTRIES, INC.

  公开号：EP0696502A1

  公开（公告）日：1996-02-14

  A readily bondable polyester film excellent in antistatic performance, slipperiness, bondability, blocking resistance, water solubility, solvent resistance, chipping resistance, and so forth, and suitable as magnetic recording material, various photographic materials, wrapping material, electrical insulation material, general industrial materials, and so forth. This film is composed of a polyester base and, formed on at least one side thereof, a layer formed from a mixture mainly comprising a copolyester composition and oxidized wax and/or natural wax, which composition contains a polyoxyalkylene glycol component in an amount of 1 wt. % or above to less than 40 wt. %.

  一种易于粘合的聚酯薄膜，具有优异的抗静电性能、滑爽性、粘合性、抗阻塞性、水溶性、耐溶剂性、抗崩裂性等，适用于磁性记录材料、各种照相材料、包装材料、电绝缘材料、一般工业材料等。该薄膜由聚酯基底和至少在其一侧形成的一层混合物组成，混合物主要由共聚聚酯组合物和氧化蜡和/或天然蜡组成，该组合物含有聚氧亚烷基二醇成分，含量在 1 wt.% 或以上至 40 wt.% 以下。
• Novel photostabilizers, UV absorbers, and methods of photostabilizing a sunscreen composition
  申请人：——

  公开号：US20040057912A1

  公开（公告）日：2004-03-25

  Derivatives of fluorene, including diesters and polyesters of diphenylmethylenemalonic acid and derivatives of cyano(9H-fluoren-9-ylidene) acetic acid; and sunscreen compositions including a mixture of a photoactive compound and any one of the foregoing derivatives are disclosed herein. Also disclosed are methods for stabilizing a sunscreen composition by the addition of one or more of the foregoing derivatives and methods of filtering out ultra-violet light from a substrate by the use of one or more such derivatives.

  本文公开了芴的衍生物，包括二苯亚甲基丙二酸的二酯和聚酯以及氰基（9H-芴-9-亚基）乙酸的衍生物；以及包括光活性化合物和前述任何一种衍生物的混合物的防晒组合物。此外，还公开了通过添加一种或多种前述衍生物来稳定防晒组合物的方法，以及通过使用一种或多种此类衍生物来滤除基质中紫外线的方法。
• Novel photostabilizers, UV absorbers, and methods of photostablizing a sunscreen composition
  申请人：THE C.P. HALL COMPANY

  公开号：US20040057916A1

  公开（公告）日：2004-03-25

  Polymers and compounds including a diphenylmethylene or a 9H-fluorene moiety; and sunscreen compositions including a mixture of a photoactive compound and any one of the foregoing derivatives are disclosed herein. Also disclosed are methods for stabilizing a sunscreen composition by the addition of one or more of the foregoing derivatives, methods of filtering out ultra-violet light from a substrate by the use of one or more such derivatives; and methods for terminating a polymerization reaction by the addition of derivatives of diphenylmethylene and/or 9H-fluorene. Synergistic combinations of the polymer with (1) diesters or polyesters of a naphthalene dicarboxylic acid, or (2) oxybenzone enhance the photostability of sunscreen compositions containing a photodegradable sunscreen active compound, such as avobenzone.

  本文公开了包括二苯基亚甲基或 9H-芴分子的聚合物和化合物；以及包括光活性化合物和上述任何一种衍生物的混合物的防晒组合物。本文还公开了通过添加一种或多种前述衍生物稳定防晒组合物的方法、通过使用一种或多种此类衍生物滤除基质中紫外线的方法；以及通过添加二苯亚甲基和/或 9H-芴衍生物终止聚合反应的方法。该聚合物与（1）萘二羧酸二酯或聚酯，或（2）氧苯酮的协同组合可提高含有光降解防晒活性化合物（如阿伏苯酮）的防晒组合物的光稳定性。