2-(2-甲基亚丙基)丙二酸 | 4361-07-3

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 中文名称: 2-(2-甲基亚丙基)丙二酸
• 英文名称: isobutylidenemalonic acid
• 英文别名: (2-Methylpropylidene)propanedioic acid；2-(2-methylpropylidene)propanedioic acid
• CAS: 4361-07-3
• 化学式: C₇H₁₀O₄
• 分子量: 158.154
• InChiKey: KWCYLWDZYDKTCX-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  11
• 可旋转键数：
  3
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.43
• 拓扑面积：
  74.6
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  亚异丁基丙二酸二乙酯 在 sodium hydroxide 作用下， 反应 1.0h， 以62%的产率得到2-(2-甲基亚丙基)丙二酸
  参考文献：
  名称：

  Inhibitors of Thermus thermophilus Isopropylmalate Dehydrogenase

  摘要：

  In an attempt to use mechanism-based design for the discovery of inhibitors of the isopropylmalate dehydrogenase from T. thermophilus, we have prepared and studied a number of potential mimics for an intermediate in the oxidative decarboxylation of isopropyl malate, the enol or enolate of alpha-ketoisocaproate. Because hydroxamate and dicarboxylate enolate mimics are strong, uncompetitive inhibitors of the enzyme and vinyl fluoride enol mimics are weak, competitive inhibitors, it is suggested that the reaction involves the enolate. The uncompetitive inhibition by a number of anionic compounds suggests, in combination with previous studies in other laboratories, that they mimic the enolate product of the decarboxylation. An explanation for the potency of the inhibition of IMDH by these compounds is proposed based on the electrostatic interaction of product and cofactor.

  DOI：

  10.1021/jo00088a026

文献信息

• Ionic Liquid as Catalyst and Reaction Medium – A Simple, Efficient and Green Procedure for Knoevenagel Condensation of Aliphatic and Aromatic Carbonyl Compounds Using a Task-Specific Basic Ionic Liquid
  作者：Brindaban C. Ranu、Ranjan Jana

  DOI：10.1002/ejoc.200600335

  日期：2006.8

  The basic ionic liquid 1-butyl-3-methylimidazolium hydroxide, [bmIm]OH, efficiently catalyzes Knoevenagel condensation without requirement of any organic solvent. A wide range of aliphatic and aromatic aldehydes and ketones easily undergo condensations with diethyl malonate, malononitrile, ethyl cyanoacetate, malonic acid and ethyl acetoacetate. The reactions proceed at room temperature and are very

  碱性离子液体 1-丁基-3-甲基咪唑鎓氢氧化物，[bmIm]OH，无需任何有机溶剂即可有效催化 Knoevenagel 缩合。多种脂肪族和芳香族醛和酮很容易与丙二酸二乙酯、丙二腈、氰基乙酸乙酯、丙二酸和乙酰乙酸乙酯发生缩合。反应在室温下进行并且非常快（10-30 分钟）。然而，该方法最显着的特征是脂肪醛与丙二酸二乙酯的缩合，这不是很容易通过常规试剂实现，并且在提供通用和方便程序的文献中没有得到充分解决。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)
• Composés 1,1-pyridinyloxycyclopropanamines polysubstitués, leur procédé de préparation et les compositions pharmaceutiques qui les contiennent
  申请人：Les Laboratoires Servier

  公开号：EP1748043A1

  公开（公告）日：2007-01-31

  Composés de formule (I) : dans laquelle : n représente un nombre entier compris entre 1 et 6 inclus, R1 et R2 représentent un atome d'hydrogène, un groupement alkyle (C1-C6) ou arylalkyle (C1-C6), R3 et R4 représentent un atome d'hydrogène, un groupement alkyle (C1-C6), R5 et R6 représentent un atome d'hydrogène, un groupement alkyle (C1-C6), halogène, hydroxy, alkoxy (C1-C6), cyano, nitro, acyle (C2-C6), alkoxycarbonyle (C1-C6), trihalogénoalkyle (C1-C6), trihalogénoalkoxy (C1-C6) ou amino éventuellement substitué. Médicaments.

  式(I)化合物： 其中 ： n 代表 1 至 6（含 6）之间的整数、 R1 和 R2 代表氢原子或（C1-C6）烷基或（C1-C6）芳烷基、 R3 和 R4 代表氢原子或 (C1-C6) 烷基、 R5和R6代表氢原子、(C1-C6)烷基、卤素、羟基、(C1-C6)烷氧基、氰基、硝基、(C2-C6)酰基、(C1-C6)烷氧基羰基、(C1-C6)三卤代烷基、(C1-C6)三卤代烷氧基或任选取代的氨基。 药用产品。
• METHOD FOR PRODUCING SOLID CATALYST COMPONENT FOR USE IN POLYMERIZATION OF OLEFIN, CATALYST FOR USE IN POLYMERIZATION OF OLEFIN, AND METHOD FOR PRODUCING OLEFIN POLYMER
  申请人：Toho Titanium CO., LTD.

  公开号：EP2876118A1

  公开（公告）日：2015-05-27

  A method for producing a solid catalyst component for olefin polymerization produces a novel solid catalyst component for olefin polymerization that achieves excellent olefin polymerization activity and activity with respect to hydrogen during polymerization, and can produce an olefin polymer that exhibits a high MFR, high stereoregularity, and excellent rigidity. The method includes a first step that brings a magnesium compound, a tetravalent titanium halide compound, and one or more first internal electron donor compounds selected from specific aromatic dicarboxylic diesters into contact with each other to effect a reaction, followed by washing, a second step that brings a tetravalent titanium halide compound and one or more second internal electron donor compounds into contact with a product obtained by the first step to effect a reaction, followed by washing, and a third step that brings one or more third internal electron donor compounds into contact with a product obtained by the second step to effect a reaction.

  一种生产烯烃聚合用固体催化剂组分的方法可生产出一种新型的烯烃聚合用固体催化剂组分，该组分具有优异的烯烃聚合活性和聚合过程中对氢的活性，并可生产出具有高MFR、高立体规整度和优异刚性的烯烃聚合物。该方法包括第一步，使镁化合物、四价卤化钛化合物和一种或多种选自特定芳香族二羧酸二酯的第一内部电子供体化合物相互接触以发生反应，然后进行洗涤、第二步：使四价卤化钛化合物和一种或多种第二内部电子供体化合物与第一步得到的产物接触，以发生反应，然后进行洗涤；第三步：使一种或多种第三内部电子供体化合物与第二步得到的产物接触，以发生反应。
• PRODUCTION METHOD FOR SOLID CATALYST COMPONENT FOR POLYMERIZING OLEFINS, CATALYST FOR POLYMERIZING OLEFINS, AND PRODUCTION METHOD FOR POLYMERIZED OLEFINS
  申请人：TOHO TITANIUM CO., LTD.

  公开号：EP2963063A1

  公开（公告）日：2016-01-06

  A method for producing a solid catalyst component for olefin polymerization produces a novel solid catalyst component for olefin polymerization that achieves excellent olefin polymerization activity and activity with respect to hydrogen during polymerization, and can produce an olefin polymer that exhibits a high MFR, high stereoregularity, and excellent rigidity. The method includes a first step that brings a magnesium compound, a tetravalent titanium halide compound, and one or more first internal electron donor compounds excluding an aromatic dicarboxylic acid diester into contact with each other to effect a reaction, followed by washing; a second step that brings a tetravalent titanium halide compound and one or more second internal electron donor compounds into contact with a product obtained by the first step to effect a reaction, followed by washing; and a third step that brings one or more third internal electron donor compounds into contact with a product obtained by the second step to effect a reaction.

  一种生产烯烃聚合用固体催化剂组分的方法可生产出一种新型的烯烃聚合用固体催化剂组分，该组分具有优异的烯烃聚合活性和聚合过程中对氢的活性，并可生产出具有高MFR、高立体规整度和优异刚性的烯烃聚合物。该方法包括第一步，使镁化合物、四价卤化钛化合物和一种或多种第一内部电子供体化合物（不包括芳香族二羧酸二酯）相互接触以发生反应，然后进行洗涤；第二步，使四价卤化钛化合物和一种或多种第二内部电子供体化合物与第一步得到的产物接触，以发生反应，然后进行洗涤；以及第三步，使一种或多种第三内部电子供体化合物与第二步得到的产物接触，以发生反应。
• Solid catalyst component for olefin polymerization, catalyst for olefin polymerization, and method for producing olefin polymer
  申请人：TOHO TITANIUM CO., LTD.

  公开号：US11192965B2

  公开（公告）日：2021-12-07

  Provided is a solid catalyst component for olefin polymerization comprising an electron-donating compound other than a phthalate, the solid catalyst component being equal in the olefin-polymerizing activity and in the primary physical properties of the resulting polymer such as stereoregularity and molecular weight distribution to those with use of a phthalate as an electron-donating compound. A solid catalyst component for olefin polymerization comprises a magnesium atom, a titanium atom, a halogen atom, an ester compound (A) represented by a general formula (1) and a diester compound (B) represented by a general formula (2), wherein a ratio represented by the following expression: (content (mass %) of ester compound (A)/content (mass %) of diester compound (B)) is 0.05 to 50.

  本发明提供了一种用于烯烃聚合的固体催化剂组分，该组分包括邻苯二甲酸酯以外的一种电子供体化合物，该固体催化剂组分在烯烃聚合活性和所得聚合物的主要物理性质（如立体规整度和分子量分布）方面与使用邻苯二甲酸酯作为电子供体化合物的催化剂组分相同。用于烯烃聚合的固体催化剂组分包括镁原子、钛原子、卤素原子、通式（1）表示的酯化合物 （A）和通式（2）表示的二酯化合物（B），其中 由以下表达式表示的比例： (酯化合物（A）的含量（质量百分比）/二酯化合物（B）的含量（质量百分比）) 为 0.05 至 50。