2,2,3-Trimethyl-pent-3ζ-ensaeure | 4168-02-9

• 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: 2,2,3-Trimethyl-pent-3ζ-ensaeure
• 英文别名: 2,2,3-trimethyl-pent-3-enoic acid；2,2,3-Trimethyl-pent-3-ensaeure；2,2,3-Trimethylpent-3-enoic acid
• CAS: 4168-02-9
• 化学式: C₈H₁₄O₂
• mdl: MFCD20617144
• 分子量: 142.198
• InChiKey: LYHIIBXTXXJWEZ-UHFFFAOYSA-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：
  0.625
• 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：

  2,2,3-Trimethyl-pent-3ζ-ensaeure 在 二硫化碳 、 溴 作用下， 生成 3,3,4,5-tetramethyl-3H-furan-2-one
  参考文献：
  名称：

  The Mechanism of Action of Antibiotics. The Reaction of Unsaturated Lactones with Cysteine and Related Compounds

  摘要：

  DOI：

  10.1021/ja01227a037
• 作为产物：
  描述：

  alkaline earth salt of/the/ methylsulfuric acid 在 氢氧化钾 作用下， 生成 2,2,3-Trimethyl-pent-3ζ-ensaeure
  参考文献：
  名称：

  Bardhan, Journal of the Chemical Society, 1928, p. 2616

  摘要：

  DOI：

文献信息

• RELEASE-PAPER BASE PAPER AND METHOD FOR PRODUCING SAME, AND RELEASE PAPER
  申请人：Kuraray Co., Ltd.

  公开号：EP3604672A1

  公开（公告）日：2020-02-05

  Release paper base paper includes: a substrate; and a coating agent containing a modified polyvinyl alcohol (A) and sodium acetate, the substrate coated with the coating agent, wherein the modified polyvinyl alcohol (A) has 0.005 mol% or more and less than 10 mol% of double bonds derived from unsaturated carboxylic acid or a derivative thereof (B) in side chains, has 1.4 mol% or more and 2.0 mol% or less of 1,2-glycol bond units, and is water soluble, and a content of the sodium acetate relative to the modified polyvinyl alcohol (A) is 0.01 mass% or more and 10 mass% or less. The release paper base paper of the present invention is excellent in sealing properties for silicone. Use of the release paper base paper allows acceleration of curing of silicone in a release layer and improvement in adhesion between the substrate and the release layer.

  离型纸原纸包括：基材；以及含有改性聚乙烯醇（A）和醋酸钠的涂布剂，基材涂布有涂布剂，其中改性聚乙烯醇（A）的侧链中具有0.005 mol% 或更多且小于 10 mol% 的来自不饱和羧酸或其衍生物 (B) 侧链的双键，具有 1.4 mol% 或更多且小于 2.0 mol% 的 1，2-乙二醇键单元，并且是水溶性的，醋酸钠相对于改性聚乙烯醇 (A) 的含量为 0.01 质量% 或更多且小于 10 质量%。本发明的离型纸原纸对硅胶的密封性能极佳。使用本发明的离型纸原纸可加速离型层中硅胶的固化，并改善基材与离型层之间的粘附性。
• PRODUCTION METHOD FOR MODIFIED VINYL ALCOHOL POLYMER PARTICLE AND PARTICLE OBTAINED THEREBY
  申请人：Kuraray Co., Ltd.

  公开号：EP3904398A1

  公开（公告）日：2021-11-03

  A method of producing modified vinyl alcohol-based polymer particles, includes mixing vinyl alcohol-based polymer particles with a mixed medium containing unsaturated carboxylic acid, an acid catalyst, and water, wherein, by mixing the vinyl alcohol-based polymer particles with the mixed medium, the vinyl alcohol-based polymer particles are reacted with the unsaturated carboxylic acid to obtain modified vinyl alcohol-based polymer particles containing a vinyl ester unit represented by a formula (2) below, having a vinyl alcohol unit content based on the total constitutional units of 60 mol% or more and less than 95 mol%, and having an average particle diameter from 50 to 2000 µm. The production method is capable of controlling the particle shape and does not cause the problem of the residual sulfur content, and is further convenient and economically advantageous.

  一种生产改性乙烯醇基聚合物颗粒的方法，包括将乙烯醇基聚合物颗粒与含有不饱和羧酸、酸催化剂和水的混合介质混合，其中，通过将乙烯醇基聚合物颗粒与混合介质混合、乙烯醇基聚合物颗粒与不饱和羧酸反应，得到改性乙烯醇基聚合物颗粒，该颗粒含有下式（2）表示的乙烯基酯单元，其乙烯醇单元含量（基于总组成单元）为 60 摩尔%或以上且小于 95 摩尔%，平均颗粒直径为 50 至 2000 微米。该生产方法能够控制颗粒形状，不会产生残余硫含量的问题，而且更加方便和经济。
• PRODUCTION METHOD FOR MODIFIED VINYL ALCOHOL-BASED POLYMER PARTICLES AND PARTICLES OBTAINED USING SAME
  申请人：Kuraray Co., Ltd.

  公开号：EP3940004A1

  公开（公告）日：2022-01-19

  A method of producing modified vinyl alcohol-based polymer particles, includes mixing vinyl alcohol-based polymer particles with a mixed medium containing unsaturated carboxylic acid, an acid catalyst, and water, wherein, by mixing the vinyl alcohol-based polymer particles with the mixed medium, the vinyl alcohol-based polymer particles are reacted with the unsaturated carboxylic acid to obtain modified vinyl alcohol-based polymer particles containing a vinyl ester unit represented by a formula (2) below, having a vinyl alcohol unit content based on the total constitutional units from 95 to 99.99 mol%, and having an average particle diameter from 50 to 2000 µm. The production method does not cause the problem of the residual sulfur content derived from a liquid medium used for reaction and is also capable of modifying the vinyl alcohol-based polymer particles while maintaining the particle shape, and thus the method needs no process for precipitating the polymer in a large amount of poor solvent, and is convenient and economically advantageous.

  一种生产改性乙烯醇基聚合物颗粒的方法，包括将乙烯醇基聚合物颗粒与含有不饱和羧酸、酸催化剂和水的混合介质混合，其中，通过将乙烯醇基聚合物颗粒与混合介质混合，使乙烯醇基聚合物颗粒与不饱和羧酸反应，以获得改性乙烯醇基聚合物颗粒，该改性乙烯醇基聚合物颗粒含有下式(2)表示的乙烯基酯单元，其乙烯醇单元含量（基于总构型单元）为95至99.99摩尔％，其平均颗粒直径为50至2000微米。该生产方法不会引起反应所用液体介质中残留硫含量的问题，还能在保持颗粒形状的同时对乙烯醇基聚合物颗粒进行改性，因此该方法无需在大量贫溶剂中沉淀聚合物的工序，既方便又具有经济优势。
• Fleury,J.-P.; Bader,A., Bulletin de la Societe Chimique de France, 1965, p. 951 - 957
  作者：Fleury,J.-P.、Bader,A.

  DOI：——

  日期：——
• Colonge; Dumont, Bulletin de la Societe Chimique de France, 1947, p. 43
  作者：Colonge、Dumont

  DOI：——

  日期：——