methylmaleic acid-1-ethyl ester | 116977-32-3

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: methylmaleic acid-1-ethyl ester
• 英文别名: Methylmaleinsaeure-1-aeethylester；(Z)-4-ethoxy-3-methyl-4-oxobut-2-enoic acid
• CAS: 116977-32-3
• 化学式: C₇H₁₀O₄
• 分子量: 158.154
• InChiKey: HWQBUJSWKVPMFY-PLNGDYQASA-N

物化性质

• 沸点：
  273.5±23.0 °C(Predicted)
• 密度：
  1.166±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.6
• 重原子数：
  11
• 可旋转键数：
  4
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.43
• 拓扑面积：
  63.6
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  柠康酸酐 、 potassium ethoxide 在 乙醇 作用下， 生成 methylmaleic acid-1-ethyl ester
  参考文献：
  名称：

  Veibel; Pedersen, Acta Chemica Scandinavica (1947), 1955, vol. 9, p. 1674,1678

  摘要：

  DOI：

文献信息

• Regioselective hydrolysis of diesters of (Z)- and (E)-2-methyl-butenedioic acids by PLE
  作者：Rudolf Schmid、Vassilia Partali、Thorleif Anthonsen、Henrik W Anthonsen、Lise Kvittingen

  DOI：10.1016/s0040-4039(01)01834-2

  日期：2001.11

  (Z)- and (E)-2-methyl-butenedioic acids (citraconic and mesaconic acid) were hydrolysed by pig live esterase, PLE. For the diethyl esters the enzyme showed low regioselectivity for both the (Z)- and the (E)-isomers. However, the hydrolysis of dimethyl and dipropyl (Z)-2-methyl-butenedioic acid gave a ratio of the monoesters of 95:5 and 85:15.

  （Z）-和（E）-2-甲基-丁烯二酸（柠康酸和中康酸）的二甲酯，二乙酯和二丙酯被猪活酯酶PLE水解。对于二乙酯，该酶对（Z）-和（E）-异构体均显示低的区域选择性。然而，二甲基和二丙基（Z）-2-甲基丁烯二酸的水解给出单酯的比例为95：5和85:15。
• Toner and charge control agent using pyrazolone derivative or salt of derivative
  申请人：HODOGAYA CHEMICAL CO., LTD.

  公开号：US10474050B2

  公开（公告）日：2019-11-12

  The purpose of the present invention is to provide a charge control agent for polymerized toners and particularly for color toners, which has a large charge amount and environmentally stable charging characteristics. Since a charge control agent including a pyrazolone derivative represented by a general formula (1) or a salt of the derivative as an active ingredient has a large charge amount and excellent environmental stability of charging, it has an excellent charge-imparting effect for use in polymerized toners and particularly in color toners: in the formula, R1, R2, and R3 each independently represent a substituted or unsubstituted C1 to C20 linear or branched alkyl group, a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, or a substituted or unsubstituted condensed polycyclic aromatic group.

  本发明的目的是提供一种用于聚合色调剂，特别是彩色调剂的电荷控制剂，其具有大的电荷量和环境稳定的充电特性。由于包括一种由通式（1）表示的吡唑酮衍生物或其衍生物的盐作为活性成分的电荷控制剂具有大的电荷量和优异的环境稳定性，因此它具有在聚合色调剂，特别是彩色调剂中使用的优异的充电效果：在该式中，R1，R2和R3各自独立地表示取代或未取代的C1到C20线性或支链烷基，取代或未取代的芳香烃基，取代或未取代的芳香杂环基或取代或未取代的紧缩多环芳香基。
• ABS-Formmassen mit reduziertem Restbutadiengehalt
  申请人：BAYER AG

  公开号：EP0267506A2

  公开（公告）日：1988-05-18

  Die Erfindung betrifft ABS-Formmassen mit einem auch bei hoher Verarbeitungstemperatur deutlich verminderten Restbutadiengehalt.

  本发明涉及一种即使在高温加工条件下也能显著降低残留丁二烯含量的 ABS 模塑料。
• Vinylidene fluoride copolymer, and binder composition containing the copolymer for non-aqueous solvent type secondary battery
  申请人：KUREHA KAGAKU KOGYO KABUSHIKI KAISHA

  公开号：EP0601754A1

  公开（公告）日：1994-06-15

  A vinylidene fluoride copolymer containing a carboxyl group or a carbonate group is formed by copolymerizing a monomer principally comprising vinylidene fluoride with a relatively small amount of an unsaturated dibasic acid monoester or vinylene carbonate. The copolymer has a large adhesion to various substrates or fillers and is excellent in chemical resistance, so that it is useful as a basic substance constituting a binder, an adhesive, a paint, etc. The copolymer is particularly effectively used as a binder for constituting an electrode for a non-aqueous solvent-type secondary battery together with an active substance, or an active substance and an electroconductive material, respectively in a particulate form.

  一种含有羧基或碳酸基的偏氟乙烯共聚物是由主要由偏氟乙烯组成的单体与相对少量的不饱和二元酸单酯或碳酸乙烯酯共聚而成。这种共聚物与各种基材或填料的粘合力大，耐化学性好，因此可用作构成粘结剂、粘合剂、涂料等的基本物质。该共聚物作为粘合剂，与活性物质或活性物质和导电材料分别以颗粒形式构成非水溶剂型二次电池的电极，尤其有效。
• Coating varnish composition and antifouling coating composition
  申请人：Hitachi Chemical Co., Ltd.

  公开号：EP0711813A2

  公开（公告）日：1996-05-15

  A coating varnish composition comprising a biodegradable polymer (A) comprising one or more kinds of constituent units (b) represented by the general formula (I), (II) or (III) and one or more other kinds of constituent units (a) capable of imparting bio-degradability: wherein in the formula (I), R¹ and R are independently a hydrogen atom, a chlorine atom, a bromine atom, a methyl group, an ethyl group or a phenyl group; in the formula (II), R³ and R⁴ are independently a hydrogen atom, a chlorine atom, a bromine atom, or a substituted or unsubstituted methyl or ethyl group; in the formula (III), R⁵ and R⁶ are independently a hydrogen atom, a methyl group or an ethyl group, and R⁷ is a straight, branched or cyclic alkyl group, an aryl group, a heterocyclic group or an aralkyl group, which may have one or more substituents.

  一种涂料清漆组合物，包含一种可生物降解聚合物 (A)，该聚合物包含一种或多种由通式 (I)、(II) 或 (III) 表示的组成单元 (b) 和一种或多种可赋予生物降解性的其他组成单元 (a)： 其中，在式 (I) 中，R¹ 和 R 独立地为氢原子、氯原子、溴原子、甲基、乙基或苯基；在式 (II) 中，R³ 和 R⁴ 独立地为氢原子、氯原子、溴原子或取代或未取代的甲基或乙基；在式 (III) 中，R⁵ 和 R⁶ 独立地是氢原子、甲基或乙基，R⁷ 是直链、支链或环状烷基、芳基、杂环基或芳烷基，它们可以有一个或多个取代基。