2,4-di-t-butylphenyl-4-hydroxybenzoate

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 缩酚酸和缩酚酸环醚类
• 英文名称: 2,4-di-t-butylphenyl-4-hydroxybenzoate
• 英文别名: (2,4-Ditert-butylphenyl) 4-hydroxybenzoate
• 化学式: C₂₁H₂₆O₃
• 分子量: 326.436
• InChiKey: YUTOAPNUQARDTR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.3
• 重原子数：
  24
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  46.5
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  2,4-二叔丁基苯酚 、 对羟基苯甲酸甲酯 在 lithium methanolate 作用下， 140.0~150.0 ℃ 、95.0 kPa 条件下， 反应 11.0h， 以82%的产率得到2,4-di-t-butylphenyl-4-hydroxybenzoate
  参考文献：
  名称：

  一种通过酯交换制备苯甲酸酚酯类紫外线吸收剂的方法

  摘要：

  本发明提供了一种通过酯交换制备苯甲酸酚酯类紫外线吸收剂的方法，先使至少一种式I的受阻酚与碱在100‑140℃反应得到受阻酚盐，再使受阻酚盐与至少一种式II的苯甲酸酯类化合物在110‑195℃反应，即得。本发明的方法避免了传统酰氯法工艺带来的生产成本高、工业废水量大等弊端；也避免了酯化法带来的产品选择性差和酸酐法带来的原子利用率低等弊端，且该方法生产成本低廉、操作简单易行、反应速度较快、产品单次收率较高且未反应的原料可回收套用，因此更适用于工业化生产。

  公开号：

  CN110407690B

文献信息

• PHOTOCHROMIC COMPOSITION
  申请人：THE PILOT INK CO., LTD.

  公开号：US20220049103A1

  公开（公告）日：2022-02-17

  Disclosed is a photochromic composition comprising a naphthopyran-based photochromic compound having a specific structure and an oligomer.

  本发明涉及一种光致变色组合物，包括一种具有特定结构的萘噻吩类光致变色化合物和一种低聚物。
• Method of changing color of a toy and colour changing toy
  申请人：THE PILOT INK CO., LTD.

  公开号：EP1415692A1

  公开（公告）日：2004-05-06

  A toy comprises a toy element comprising a photochromic layer which contains a photochromic compound having a photo memory function (color-memorizing photochromic property), maintains a coloring state by developing a color through the irradiation of ultraviolet rays or sunlight containing ultraviolet rays and changes into decolorizing state through its decolorization by the irradiation of visible light, and a color-changing means which contains at least one of an ultraviolet ray absorbent and a light-shading pigment capable of shading at least ultraviolet rays, changes the photochromic compound of the coloring state into decolorizing state by cutting off ultraviolet rays of sunlight and thereby effecting irradiation of visible light, and maintains the changed state, wherein a function to memorize and maintain coloring and decolorizing states alternately is expressed by arranging the color-changing means under such a condition that it is covering or not covering the photochromic layer.

  一种玩具包括一个由光致变色层和一个变色装置组成的玩具元件，光致变色层包含具有光记忆功能（颜色记忆光致变色特性）的光致变色化合物，通过紫外线或含有紫外线的阳光照射显色来保持着色状态，并通过可见光照射使其脱色而变为脱色状态，变色装置包含紫外线吸收剂和至少能遮蔽紫外线的遮光颜料中的至少一种、通过切断太阳光中的紫外线，从而实现可见光的照射，将着色状态的光致变色化合物变为脱色状态，并保持改变后的状态，其中，通过在覆盖或不覆盖光致变色层的条件下布置变色装置，可实现交替记忆和保持着色和脱色状态的功能。
• Color-memorizing photochromic writing instrument
  申请人：THE PILOT INK CO., LTD.

  公开号：EP1637570A1

  公开（公告）日：2006-03-22

  A color-memorizing photochromic writing instrument, which comprises a writing tip portion connected to a light-shielding tubular member or refill; and a color-memorizing photochromic ink, wherein the ink is prepared by dissolving, dispersing or suspending a diarylethene photochromic compound in a vehicle containing at least a solvent and a binder, wherein the diarylethene photochromic compound is in a coloring state, and a color-memorizing photochromic writing instrument set comprising the writing instrument and a color-changing means.

  一种颜色记忆光致变色书写工具，它包括一个与遮光管状部件或笔芯相连的书写尖端部分；一种可记色的光致变色墨水，其中墨水是通过在至少含有溶剂和粘合剂的载体中溶解、分散或悬浮二里蒽光致变色化合物制备的，其中二里蒽光致变色化合物处于着色状态；以及一套可记色的光致变色书写工具，包括书写工具和变色装置。
• RESIN COMPOSITION
  申请人：Adeka Corporation

  公开号：EP2949697A1

  公开（公告）日：2015-12-02

  Provided is a resin composition having excellent weather resistance, in which occurrence of initial coloration, bleeding and blooming is suppressed. The resin composition is characterized by comprising, with respect to 100 parts by mass of (A) an olefin-based resin: 0.05 to 0.3 parts by mass of (B) a hindered amine-based light stabilizer; 0.05 to 0.3 parts by mass of (C) a benzoate compound represented by the following Formula (1); and 0.001 to 0.01 parts by mass of (D) a benzotriazole-based ultraviolet absorber represented by the following Formula (2): (wherein, R1 and R2 each independently represent a hydrogen atom, an alkyl group having 1 to 12 carbon atoms or the like; and R3 represents an alkyl group having 8 to 30 carbon atoms) (wherein, R4 and R5 each independently represent, for example, a hydrogen atom; R6 and R7 each independently represent a hydrogen atom or an alkyl group having 1 to 18 carbon atoms; R8 and R9 each independently represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms).

  本发明提供了一种具有优异耐候性的树脂组合物，在该树脂组合物中，初始着色、渗色和开花现象均被抑制。该树脂组合物的特点是，相对于 100 质量份的(A)烯烃基树脂而言，包含 0.05 至 0.3 质量份的(B)受阻胺基光稳定剂：0.05 至 0.3 质量份的(B)受阻胺基光稳定剂；0.05 至 0.3 质量份的(C)下式(1)代表的苯甲酸化合物；以及 0.001 至 0.01 质量份的(D)下式(2)代表的苯并三唑基紫外线吸收剂： (其中，R1 和 R2 各自独立地代表氢原子、具有 1 至 12 个碳原子的烷基或类似基团；R3 代表具有 8 至 30 个碳原子的烷基）。 (其中，R4 和 R5 各自独立地代表例如氢原子；R6 和 R7 各自独立地代表氢原子或具有 1 至 18 个碳原子的烷基；R8 和 R9 各自独立地代表氢原子或具有 1 至 4 个碳原子的烷基）。
• 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。