2-methylene-3-methyl-succinic anhydride | 14219-09-1

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: 2-methylene-3-methyl-succinic anhydride
• 英文别名: 2-methyl-3-methylenesuccinic anhydride；methylitaconic anhydride；methyl-methylene-succinic acid-anhydride；Methyl-methylen-bernsteinsaeure-anhydrid；3-Methyl-4-methylideneoxolane-2,5-dione
• CAS: 14219-09-1
• 化学式: C₆H₆O₃
• 分子量: 126.112
• InChiKey: CMTRLIROAHANBX-UHFFFAOYSA-N

物化性质

• 沸点：
  233.3±19.0 °C(Predicted)
• 密度：
  1.19±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.7
• 重原子数：
  9
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  43.4
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  2-methylene-3-methyl-succinic anhydride 、 水 生成 2-methyl-3-methylenesuccinic acid
  参考文献：
  名称：

  Fittig; Kettner, Justus Liebigs Annalen der Chemie, 1899, vol. 304, p. 158

  摘要：

  DOI：
• 作为产物：
  描述：

  2,3-二甲基马来酸酐 在 sodium hydroxide 、 乙酰氯 作用下， 反应 68.0h， 以62%的产率得到2-methylene-3-methyl-succinic anhydride
  参考文献：
  名称：

  摘要：

  Simple bromination of olefins almost invariably yields the trans-1,2-dibromo-product, and in many cases the corresponding cis-product is an unknown compound. Approaches towards a reagent which will generally, mildly and stereospecifically cis-brominate olefins are now discussed.

  DOI：

  10.1071/ch01016

文献信息

• Resin composition for optical material
  申请人：Yonezawa Jun

  公开号：US20080266493A1

  公开（公告）日：2008-10-30

  An optical material having a high birefringence and a small absolute value of a photoelastic coefficient is provided by use of a resin composition for an optical material comprising a resin (a) having a positive photoelastic coefficient and a negative inherent birefringence and a resin (b) having a negative photoelastic coefficient and a negative inherent birefringence.

  通过使用光学材料的树脂组合物，提供具有高双折射和小光弹性系数绝对值的光学材料。该组合物包括具有正光弹性系数和负固有双折射的树脂(a)和具有负光弹性系数和负固有双折射的树脂(b)。
• Water-absorbing polymer composition
  申请人：ARCO CHEMICAL TECHNOLOGY INC.

  公开号：EP0210754A1

  公开（公告）日：1987-02-04

  A water-absorbing polymer composition which comprises a copolymer comprising recurring units of an α, β -unsaturated monomer bearing two groups each independently selected from the group consisting of a carboxyl group and a group convertible to a carboxyl group, and recurring units of a copolymerizable monomer; and a polyether derived from C2 to C10 alkylene oxides; wherein at least a portion of the said two groups attached to the recurring α, β -unsaturated monomer units ofthe copolymer either have hydrogen atoms thereen or are reacted to form hydrogen atoms thereon; and, wherein at least a portion of the oxide groups of the polyether are interacted with the hydrogen atoms such that the copolymer and the polyether are associated through hydrogen bonds, is disclosed.

  一种吸水聚合物组合物，它包括一种共聚物，该共聚物由α，β-不饱和单体的递归单元组成，该单体带有两个各自独立地选自羧基和可转化为羧基的基团组成的组的基团，以及一种可共聚单体的递归单元；和一种聚醚，该聚醚衍生自 C2 至 C10 烯氧化物；本发明公开了一种聚醚，其中至少有一部分连接到共聚物的循环α、β-不饱和单体单元上的上述两个基团上有氢原子，或者在其上反应形成氢原子；以及，其中至少有一部分聚醚的氧化物基团与氢原子相互作用，从而使共聚物和聚醚通过氢键结合在一起。
• Water absorbent polymer composition
  申请人：ARCO CHEMICAL TECHNOLOGY INC.

  公开号：EP0217481A1

  公开（公告）日：1987-04-08

  Water-insoluble, water swellable polymer compositions comprising an at least partially hydrolyzed copolymer of styrene and an α,β- ethylenically unsaturated dicarboxylic acid anhydride and a multi arm block copolymer of styrene and ethylene oxide attached to the copolymer by hydrogen bonding. In a preferred embodiment, the anhydride groups of the anhydride-containing copolymer are treated with a strong base to further enhance absorption capacity.

  不溶于水、可遇水膨胀的聚合物组合物，包括至少部分水解的苯乙烯和 α，β- 乙烯基不饱和二羧酸酐共聚物，以及通过氢键连接到共聚物上的苯乙烯和环氧乙烷的多臂嵌段共聚物。在一个优选的实施方案中，含酐共聚物的酐基团用强碱处理，以进一步提高吸收能力。
• Extended shelf life water-absorbing composition which facilitates fiber formation
  申请人：CAMELOT SUPERABSORBENTS LTD

  公开号：EP0264208A2

  公开（公告）日：1988-04-20

  A copolymer of recurring units of at least one α,β -unsaturated monomer and recurring units of at least one copolymerizable comonomer comprising, in its preferred embodiment from about 20 to about 80 percent pendant carboxylic acid units and from about 80 to about 20 percent pendant carboxylate salt units, is blended with at least one monomer containing at least two hydroxyl groups to produce a water-absorbing composition upon curing. The composition is particularly suitable for fiber forma­tion.

  一种由至少一种 α、β-不饱和单体的重复单元和至少一种可共聚共聚单体的重复单元组成的共聚物，在其优选的实施方案中，包含约 20% 至约 80% 的悬垂羧酸单元和约 80% 至约 20% 的悬垂羧酸盐单元，该共聚物与至少一种含有至少两个羟基的单体混合，在固化后产生一种吸水组合物。 该组合物特别适用于纤维的形成。
• Water-absorbent polymer composition, method of forming it and article containing it
  申请人：CAMELOT SUPERABSORBENTS LTD

  公开号：EP0272074A2

  公开（公告）日：1988-06-22

  A copolymer of recurring units of at least one α , β -unsaturated monomer and recurring units of at least one copolymerizable comonomer comprising, in its preferred embodiment from about 20 to about 80 percent pendant carboxylic acid units and from about 80 to about 20 percent pendant carboxylate salt units, is blended with at least one disaccharide or oligosaccharide to produce a water-absorbing composition upon curing. The composi­tion is particularly suitable for fiber formation.

  一种由至少一种 α、β-不饱和单体的重复单元和至少一种可共聚共聚单体的重复单元组成的共聚物，在其优选的实施方案中，包含约 20% 至约 80% 的悬垂羧酸单元和约 80% 至约 20% 的悬垂羧酸盐单元，与至少一种二糖或寡糖混合，固化后产生一种吸水组合物。 该组合物特别适用于纤维的形成。