Δ²-trans-2,5-Dimethyl-hexadien-2,4-saeure | 90199-37-4

• 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: Δ²-trans-2,5-Dimethyl-hexadien-2,4-saeure
• 英文别名: 2,5-dimethyl-hexa-2t,4-dienoic acid；2,5-Dimethyl-hexa-2t,4-diensaeure；(2E)-2,5-dimethylhexa-2,4-dienoic acid
• CAS: 90199-37-4
• 化学式: C₈H₁₂O₂
• 分子量: 140.182
• InChiKey: YGLNXMOCZLUGEO-FNORWQNLSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  10
• 可旋转键数：
  2
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  Δ²-trans-2,5-Dimethyl-hexadien-2,4-saeure 在 Pd-BaSO₄ 作用下， 生成 (E)-2,5-dimethylhex-2-enoic acid
  参考文献：
  名称：

  Inouye et al., Journal of the Agricultural Chemical Society of Japan, 1957, vol. 21, p. 5,9

  摘要：

  DOI：
• 作为产物：
  描述：

  ethyl 2,5-dimethylhexa-2,4-dienoate2,5-dimethylsorbate 在 氢氧化钾 作用下， 生成 Δ²-trans-2,5-Dimethyl-hexadien-2,4-saeure
  参考文献：
  名称：

  Crombie et al., Journal of the Chemical Society, 1957, p. 2754,2759

  摘要：

  DOI：

文献信息

• PROCESS OF PREPARING FUNCTIONALIZED POLYMERS VIA ENZYMATIC CATALYSIS
  申请人：Puskas Judit E.

  公开号：US20100240837A1

  公开（公告）日：2010-09-23

  The invention relates to functionalized, telechelic polymers synthesized by enzymatic catalysis and methods, and the functionalization of polymers via Michael addition with a lipase catalyst, and the crosslinking of mono- or difunctional (telechelic) polymers made by enzymatic catalysis, such as by using multifunctional coupling agents and enzyme catalysts. Quantitative transesterification of vinyl methacrylate with poly(ethylene glycol), poly(isobutylene) and poly(dimethylsiloxane) was achieved using Candida antarctica lipase B. In addition, methacrylate-functionalized poly(ethylene glycol) monomethyl ether has been successfully coupled to aminoethoxy poly(ethylene glycol) monomethyl ether via Michael addition using Candida antarctica lipase B. Amine-functionalized poly(ethylene glycol)s have also been used for the preparation of poly(ethylene glycol)-based dendrimers and gels through Michael addition of the polymer onto triacryloyl hexahydro-triazine using the same enzyme. 1 H and 13 C NMR spectroscopy verified the structure of the functionalized polymers.

  本发明涉及通过酶催化合成的官能化、末端官能基聚合物及其方法，以及通过脂肪酶催化剂的Michael加成对聚合物进行官能化，以及通过使用多功能偶联剂和酶催化剂制备的单官能基（末端官能基）聚合物的交联。使用南极嗜酸性酵母脂肪酶B实现了乙烯基甲基丙烯酸酯与聚乙二醇、聚异丁烯和聚二甲基硅氧烷的定量转酯化反应。此外，使用南极嗜酸性酵母脂肪酶B，成功地将甲基丙烯酸酯官能化的聚乙二醇单甲醚与氨基乙氧基聚乙二醇单甲醚进行了Michael加成偶联。氨基官能化的聚乙二醇也被用于通过将聚合物通过Michael加成反应接枝到三丙烯酰基六氢-三嗪上制备聚乙二醇基树枝状聚合物和凝胶。1H和13C NMR光谱验证了官能化聚合物的结构。
• Process for producing t-butyl methacrylate
  申请人：MITSUBISHI RAYON CO., LTD.

  公开号：EP0268999A2

  公开（公告）日：1988-06-01

  A process for producing methacrylic acid which comprises reacting methacrylic acid and iso­butylene in the presence of a sulfonic acid group-­containing ion exchange resin by a continuous process while controlling the reaction at a reaction temperature of -20°C to +20°C so as to fulfil the following relation:     y < 100 - 50x wherein x is the ratio of the total molar number of isobutylene and its reaction products to the total molar number of methacrylic acid and its reaction products and y is conversion (%) of isobutylene, followed by degassing the unreacted isobutylene, distilling off the low boiling substances by distillation under reduced pressure, and then sending the remainder to a t-butyl methacrylate purifying tower where a product of high purity is obtained from the distillate side and unreacted meth­acrylic acid is withdrawn from the tower bottom side and circulated into the reaction step.

  一种生产甲基丙烯酸的工艺，包括在含磺酸基团的离子交换树脂存在下，通过连续工艺使甲基丙烯酸和异丁烯反应，同时将反应温度控制在-20℃至+20℃，以满足以下关系式： y < 100 - 50x 其中 x 是异丁烯及其反应产物的总摩尔数与甲基丙烯酸及其反应产物的总摩尔数之比，y 是异丁烯的转化率（%），然后对未反应的异丁烯进行脱气，通过减压蒸馏蒸出低沸点物质、然后将剩余物送入甲基丙烯酸叔丁酯纯化塔，从馏分侧获得高纯度产品，未反应的甲基丙烯酸从塔底侧抽出，循环进入反应步骤。
• THERMOPLASTIC RESIN COMPOSITION
  申请人：Kaneka Corporation

  公开号：EP1398353A1

  公开（公告）日：2004-03-17

  A thermoplastic resin composition comprising a thermoplastic resin (a) and a block copolymer (b) containing a methacrylic polymer block (A) and an acrylic polymer block (B).

  一种热塑性树脂组合物，由热塑性树脂（a）和嵌段共聚物（b）组成，嵌段共聚物含有甲基丙烯酸聚合物嵌段（A）和丙烯酸聚合物嵌段（B）。
• Lubricant composition containing copolymers of polyisobutylenemethacrylate
  申请人：BASF SE

  公开号：US11214752B2

  公开（公告）日：2022-01-04

  The present invention is directed to the use of poly(polyisobutylenemethacrylate) as viscosity index improving component in lubricating oil compositions. The invention is further related to lubricating oil compositions comprising poly(polyisobutylenemethacrylate) with enhanced shear stability.

  本发明涉及在润滑油组合物中使用聚（聚异丁烯甲基丙烯酸酯）作为粘度指数改进成分。本发明还涉及包含具有增强剪切稳定性的聚（聚异丁烯甲基丙烯酸酯）的润滑油组合物。
• Thermoplastic resin composition
  申请人：——

  公开号：US20040147674A1

  公开（公告）日：2004-07-29

  A thermoplastic resin composition comprising a thermoplastic resin (a) and a block copolymer (b) containing a methacrylic polymer block (A) and an acrylic polymer block (B).

  一种热塑性树脂组合物，由热塑性树脂（a）和嵌段共聚物（b）组成，嵌段共聚物含有甲基丙烯酸聚合物嵌段（A）和丙烯酸聚合物嵌段（B）。