4.4'-Dihydroxy-3.3'-dimethyl-bibenzyl | 22954-05-8

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 二苯乙烯类
• 英文名称: 4.4'-Dihydroxy-3.3'-dimethyl-bibenzyl
• 英文别名: 4,4'-Ethylenbis(2-methylphenol)；4-[2-(4-hydroxy-3-methylphenyl)ethyl]-2-methylphenol
• CAS: 22954-05-8
• 化学式: C₁₆H₁₈O₂
• 分子量: 242.318
• InChiKey: NSOYUYYTMRZCLE-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.2
• 重原子数：
  18
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  40.5
• 氢给体数：
  2
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  4-甲氧基-3-甲基氯苄 在 氢碘酸 、 sodium 作用下， 生成 4.4'-Dihydroxy-3.3'-dimethyl-bibenzyl
  参考文献：
  名称：

  叔丁基过氧化物与酚的反应

  摘要：

  已经研究了由叔丁基过氧化物热分解形成的自由基与酚的反应。尽管主要产物是联苯的2,2'-二羟基衍生物，但也形成了异构体2-羟基二苯醚。没有形成Pummerer的酮，从与2,4-二甲基苯酚的反应中分离出4,4'-二羟基-3,3'-二甲基联苄表明，通过苄基的偶合不限于完全受阻的苯酚或与4-甲氧基甲苯。 。

  DOI：

  10.1039/j39690001424

文献信息

• Water resistant composition and heat-sensitive recording sheet containing the same
  申请人：KURARAY CO., LTD.

  公开号：EP0187673A2

  公开（公告）日：1986-07-16

  57 This invention relates to a water resistant composition which comprises (A) polyvinyl alcohol, (B) a chitosan, the aqueous 1% solution of which has a viscosity not greater than 70 centipoise at 20°C, and (C) an aldehyde compound, as well as a heat-sensitive recording sheet which comprises said composition. The composition has excellent water resistant properties and the heat-sensitive recording sheet has improved color forming properties and excellent resistance to water and solvents.

  57 本发明涉及一种防水组合物，它包括(A)聚乙烯醇、(B)壳聚糖（其 1%水溶液在 20°C 时的粘度不大于 70 厘泊）和(C)醛化合物，以及包含所述组合物的热敏记录片。该组合物具有优异的防水性能，热敏记录薄片具有更好的成色性能和优异的耐水性和耐溶剂性。
• HIGH-QUALITY THERMAL RECORDING SHEET AND PRODUCTION THEREOF
  申请人：Kohjin Co., Ltd.

  公开号：EP0270687A1

  公开（公告）日：1988-06-15

  Thermal recording sheet (10) having a thermal-coloring recording layer on a support (1) and production thereof. The outermost surface of the thermal recording sheet is bonded under a wet condition to the surface (8) of other flat member, dried and then peeled to produce the sheet. The surface of the resulting thermal recording sheet is a flat surface which Is in parallel with the center line of the coarseness curve based on JIS B-0601 and the contact ratio of a line, which is extended at a distance of 1.5 µm inside from and in parallel with a line crossing the coarseness curve at a contact ratio of 10%, with the coarseness curve is at least 80%.

  在支架（1）上具有热着色记录层的热敏记录薄片（10）及其生产。 热敏记录薄片的最外层表面在湿润条件下粘合到其他平面部件的表面（8）上，干燥后剥离以生产该薄片。 所生产的热敏记录薄片的表面是一个平面，该平面与基于 JIS B-0601 的粗度曲线的中心线平行，并且在距离粗度曲线内侧 1.5 µm 处延伸并平行于与粗度曲线交叉的线的接触比为 10%，与粗度曲线的接触比至少为 80%。
• Thermoplastic polyarylate compositions having improved oxygen barrier properties
  申请人：GENERAL ELECTRIC COMPANY

  公开号：EP0406639A2

  公开（公告）日：1991-01-09

  Aromatic thermoplastic polyarylates containing structural units derived from a bisphenol of cyclohexanone, preferably, 1,1-bis(4-hydroxy-3-methylphenyl)cyclohexane, and an aromatic dicarboxylic acid or mixture of such acids, are provided which exhibit improved oxygen barrier properties.

  芳香族热塑性聚芳酸酯含有由环己酮双酚（最好是 1,1-双（4-羟基-3-甲基苯基）环己烷）和芳香族二羧酸或二羧酸混合物衍生的结构单元，具有更好的氧气阻隔性能。
• Laser marking and printing ink therefor
  申请人：DAINIPPON INK AND CHEMICALS, INC.

  公开号：EP0600441A1

  公开（公告）日：1994-06-08

  A non-destructive laser marking method comprising irradiating laser light on a thermosensitive color-forming layer formed by printing with a printing ink containing a leuco dye as a color former and an acidic substance as a color developer, and at least one background color formation inhibitor selected from the group consisting of a water-soluble amino acid, an ammonium salt of an inorganic acid, a pH buffer, and water. Laser marking can be achieved with low energy and at high speed while minimizing background color formation to provide a high-contrast color image.

  一种非破坏性激光打标方法，包括在热敏成色层上照射激光，该热敏成色层是用印刷油墨印刷形成的，该印刷油墨含有作为成色剂的白兰地染料和作为显色剂的酸性物质，以及至少一种背景成色抑制剂，该抑制剂选自由水溶性氨基酸、无机酸的铵盐、pH 缓冲剂和水组成的组。激光打标可以低能耗、高速度实现，同时最大限度地减少背景色的形成，从而提供高对比度的彩色图像。
• POLY(ARYLENE ETHER) COPOLYMER
  申请人：SABIC Global Technologies B.V.

  公开号：EP3636692A1

  公开（公告）日：2020-04-15

  A poly(arylene ether) copolymer is the product of oxidative copolymerization of monomers including a monohydric phenol and a dihydric phenol of the formula wherein R3, R4, R5, and R6 are as defined herein. The poly(arylene ether) copolymer includes less than 0.1 weight percent of incorporated amine groups. A method of the manufacture of a poly(arylene ether) copolymer is also disclosed. A curable composition including the poly(arylene ether) copolymer and cured products derived therefrom are also described.

  聚芳基醚共聚物是单体氧化共聚的产物，单体包括式如下的一元酚和二元酚 其中 R3、R4、R5 和 R6 如本文所定义。该聚（芳基醚）共聚物包括小于 0.1 重量百分比的掺入胺基团。还公开了一种聚（芳基醚）共聚物的制造方法。还描述了一种包括聚（丙烯烯醚）共聚物的可固化组合物及其固化产品。