undecylparaben | 69679-31-8

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: undecylparaben
• 英文别名: Undecyl 4-hydroxybenzoate
• CAS: 69679-31-8
• 化学式: C₁₈H₂₈O₃
• 分子量: 292.419
• InChiKey: VNHZHSYTJBADIV-UHFFFAOYSA-N

物化性质

• 沸点：
  394.34°C (rough estimate)
• 密度：
  1.0242 (rough estimate)

计算性质

• 辛醇/水分配系数(LogP)：
  7
• 重原子数：
  21
• 可旋转键数：
  12
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.61
• 拓扑面积：
  46.5
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  undecylparaben 在 3 A molecular sieve 、 三氟化硼乙醚 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下， 以 氯仿 、 N,N-二甲基甲酰胺 为溶剂， 反应 38.0h， 生成
  参考文献：
  名称：

  New Liquid Crystal Compound: (+)-4-Alkoxycarbonylphenyl 4-[5-(2-methylbutyl)-1,3-oxathian-2-yl]benzoate

  摘要：

  New liquid crystal compound: (+)-4-Alkoxycarbonylphenyl-4-[5-(2-methylbutyl)-1,3-oxathiane-2-yl]benzoates (11) was synthesized. The mesomorphic behavior of this compound is compared with those of (+)-4-(2-methylbutoxycarbonyl)phenyl 4-(5-alkyl-1,3-oxathian-2-yl)benzoates (12), and (+)-4-alkoxy-carbonylphenyl 4-[5-(2-methylbutyl)-1,3-dioxan-2-yl]-benzoates (13), and (+)-4-Alkoxyphenyl 4-[5-(2-methylbutyl)-1,3-oxathian-2-yl]benzoates (14). Transition temperatures to the isotropic state for compound 11 were lower than those for the corresponding compounds 12 or 13. Though compound 11 exhibited the cholesteric phase, compound 12 exhibited the smectic phase. These features seem to originate in the wider molecular width of compound 11. Transition temperatures to the isotropic state for compound 11 are lower than those for 14. In this case, the difference of partial molecular width caused by carbonyl group seem to be main factor.

  DOI：

  10.1080/10587259308028794
• 作为产物：
  描述：

  十一烷醇 、 对羟基苯甲酸 在 acid 作用下， 反应 48.0h， 生成 undecylparaben
  参考文献：
  名称：

  Haramoto, Y.; Kamogawa, H., Molecular Crystals and Liquid Crystals (1969-1991), 1991, vol. 201, p. 161 - 166

  摘要：

  DOI：

文献信息

• PRODUCTION PROCESS AND PURIFICATION PROCESS OF 4-HYDROXY-BENZOIC ACID LONG CHAIN ESTER
  申请人：Ueno Fine Chemicals Industry, Ltd.

  公开号：EP3088379A1

  公开（公告）日：2016-11-02

  The present invention relates to a production process of a 4-hydroxy-benzoic acid long chain ester, that includes a step of reacting a 4-hydroxy-benzoic acid short chain ester with an aliphatic alcohol in the presence of a metal catalyst. The present invention also relates to a purification process of a 4-hydroxy-benzoic acid long chain ester, that includes a step of adding an acid aqueous solution to a crude composition including the 4-hydroxy-benzoic acid long chain ester, separating the crude composition to an organic phase and a water phase and extracting the organic phase.

  本发明涉及一种4-羟基苯甲酸长链酯的生产工艺，包括在金属催化剂存在下使4-羟基苯甲酸短链酯与脂肪醇反应的步骤。本发明还涉及一种 4-羟基苯甲酸长链酯的提纯工艺，其步骤包括向包括 4-羟基苯甲酸长链酯的粗组合物中加入酸水溶液，将粗组合物分离为有机相和水相，并萃取有机相。
• THERMOCHROMIC COLOR-MEMORY COMPOSITION AND THERMOCHROMIC COLOR-MEMORY MICROCAPSULE PIGMENT ENCAPSULATING SAME
  申请人：The Pilot Ink Co., Ltd

  公开号：EP3333240A1

  公开（公告）日：2018-06-13

  [Problems] An object of the present invention is to provide: a thermochromic color-memory composition which effectively expresses a property of being able to interchangeably memorize and retain colors and which is thus applicable to various fields; and a thermochromic color-memory microcapsule pigment encapsulating the same. [Solution] Provided is a thermochromic color-memory composition including: (a) an electron-donating color-developing organic compound; (b) an electron-accepting compound; and (c) an ester compound represented by the following Formula (1), as a reaction medium which controls color reaction between the component (a) and the component (b): (wherein, R represents an alkyl group having 3 to 18 carbon atoms, a cycloalkylalkyl group having 6 to 11 carbon atoms, a cycloalkyl group having 5 to 7 carbon atoms or an alkenyl group having 3 to 18 carbon atoms; each X independently represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 3 carbon atoms or a halogen atom; and each Y independently represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, a methoxy group, an ethoxy group or a halogen atom).

  问题 本发明的目的是提供：一种热致变色颜色记忆组合物，该组合物能有效表达可互换记忆和保留颜色的特性，因此适用于各种领域；以及一种封装该组合物的热致变色颜色记忆微胶囊颜料。 [解决方案］ 本发明提供了一种热致变色颜色记忆组合物，该组合物包括：(a)一种电子捐赠显色有机化合物；(b)一种电子接受化合物；以及(c)一种由下式(1)表示的酯类化合物，作为反应介质，该反应介质可控制组分(a)和组分(b)之间的颜色反应： (其中，R 代表具有 3 至 18 个碳原子的烷基、具有 6 至 11 个碳原子的环烷基、具有 5 至 7 个碳原子的环烷基或具有 3 至 18 个碳原子的烯基；每个 X 独立地代表氢原子、具有 1 至 4 个碳原子的烷基、具有 1 至 3 个碳原子的烷氧基或卤素原子；每个 Y 独立地代表氢原子、具有 1 至 4 个碳原子的烷基、甲氧基、乙氧基或卤素原子）。
• REVERSIBLE THERMOCHROMIC COMPOSITION, REVERSIBLE THERMOCHROMIC MICROCAPSULE PIGMENT COMPRISING SAME, AND WRITING INSTRUMENT USING SAME
  申请人：THE PILOT INK CO., LTD.

  公开号：EP3950068A1

  公开（公告）日：2022-02-09

  [Problems] Provided are a highly marketable reversibly thermochromic composition that provides a black color during color development by using a fluoran derivative having a specific structure as an electron-donating color-developing organic compound, turns colorless during decoloration, and is excellent in contrast between a colored state and a decolored state and a microcapsule pigment encapsulating the same. [Solution] Disclosed are a reversibly thermochromic composition including: (a) a fluoran derivative having a specific structure as an electron-donating color-developing organic compound; (b) an electron-accepting compound; and (c) a reaction medium which reversibly induces an electron transfer reaction between the component (a) and the component (b) in a specific temperature range, and a reversibly thermochromic microcapsule pigment encapsulating the same.

  [问题]提供了一种极具市场前景的可逆热致变色组合物，该组合物通过使用具有特定结构的芴衍生物作为电子捐赠显色有机化合物，在显色过程中提供黑色，在脱色过程中变成无色，并且在有色状态和脱色状态之间具有极佳的对比度，同时还提供了封装该组合物的微胶囊颜料。 [解决方案]本发明公开了一种可逆热变色组合物，包括：（a）具有特定结构的氟烷衍生物，作为电子捐赠显色有机化合物；（b）电子接受化合物；以及（c）反应介质，该介质可在特定温度范围内可逆地诱导组分（a）和组分（b）之间的电子转移反应，以及封装该组合物的可逆热变色微胶囊颜料。
• Thermochromic color-memory composition and thermochromic color-memory microcapsule pigment encapsulating same
  申请人：THE PILOT INK CO., LTD.

  公开号：US10358570B2

  公开（公告）日：2019-07-23

  [Problems] An object of the present invention is to provide: a thermochromic color-memory composition which effectively expresses a property of being able to interchangeably memorize and retain colors and which is thus applicable to various fields; and a thermochromic color-memory microcapsule pigment encapsulating the same. [Solution] Provided is a thermochromic color-memory composition including: (a) an electron-donating color-developing organic compound; (b) an electron-accepting compound; and (c) an ester compound represented by the following Formula (1), as a reaction medium which controls color reaction between the component (a) and the component (b): (wherein, R represents an alkyl group having 3 to 18 carbon atoms, a cycloalkylalkyl group having 6 to 11 carbon atoms, a cycloalkyl group having 5 to 7 carbon atoms or an alkenyl group having 3 to 18 carbon atoms; each X independently represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 3 carbon atoms or a halogen atom; and each Y independently represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, a methoxy group, an ethoxy group or a halogen atom).

  [问题] 本发明的目的是提供：一种热致变色颜色记忆组合物，该组合物有效地表达了能够互换记忆和保留颜色的特性，因此适用于各种领域；以及一种封装了该组合物的热致变色颜色记忆微胶囊颜料。 [解决方案]提供了一种热致变色颜色记忆组合物，包括：(a) 电子捐赠显色有机化合物；(b) 电子接受化合物；和 (c) 由下式 (1) 表示的酯类化合物，作为反应介质，控制组分 (a) 和组分 (b) 之间的颜色反应： (其中，R 代表具有 3 至 18 个碳原子的烷基、具有 6 至 11 个碳原子的环烷基、具有 5 至 7 个碳原子的环烷基或具有 3 至 18 个碳原子的烯基；每个 X 独立地代表氢原子、具有 1 至 4 个碳原子的烷基、具有 1 至 3 个碳原子的烷氧基或卤素原子；每个 Y 独立地代表氢原子、具有 1 至 4 个碳原子的烷基、甲氧基、乙氧基或卤素原子）。
• REVERSIBLY THERMOCHROMIC COMPOSITE FIBER
  申请人：THE PILOT INK CO., LTD.

  公开号：US20210355608A1

  公开（公告）日：2021-11-18

  To provide a reversibly thermochromic composite fiber having a reversible color change due to a temperature change, having such excellent flame retardancy that flame is hard to spread even if ignition occurs once, and having high safety. [Solution] Disclosed is a sheath-core type reversibly thermochromic composite fiber including a core comprising a resin, a reversibly thermochromic pigment, and a flame retardant, and a sheath comprising a resin and a flame retardant.