2,4,5-trihydroxy-benzophenone | 14894-91-8

• 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: 2,4,5-trihydroxy-benzophenone
• 英文别名: 2,4,5-Trihydroxy-benzophenon；2.4.5-Trihydroxy-benzophenon；2.4.5-Trioxybenzophenon；phenyl-(2,4,5-trihydroxyphenyl)methanone
• CAS: 14894-91-8
• 化学式: C₁₃H₁₀O₄
• 分子量: 230.22
• InChiKey: LRSWZNHYSJTYTC-UHFFFAOYSA-N

物化性质

• 熔点：
  129°C
• 沸点：
  477.5±24.0 °C(Predicted)
• 密度：
  1.413±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  17
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  77.8
• 氢给体数：
  3
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  2,4-二羟二苯甲酮 在 C₂₈H₄₆N₄O₁₀S₂ 、 双氧水 、 溶剂黄146 、 iron(II) chloride 作用下， 以 水 、 乙腈 为溶剂， 反应 1.0h， 以65%的产率得到2,4,5-trihydroxy-benzophenone
  参考文献：
  名称：

  铁催化芳烃C-H羟基化

  摘要：

  由于芳基碳氢键的相对惰性、酚类产物的较高反应性导致过度氧化的副产物以及经常不足的区域选择性，芳烃的可持续、非定向和选择性催化羟基化仍然是一项持续的研究挑战。我们报告说，铁由受生物启发的l-胱氨酸衍生的配体可以催化非定向芳烃碳氢羟基化，过氧化氢作为末端氧化剂。该反应以其广泛的底物范围、出色的选择性和良好的产率而著称，并且表现出与氧化敏感官能团的相容性，如醇、多酚、醛，甚至硼酸。该方法非常适合通过多重碳氢羟基化合成多酚，以及天然产物和药物分子的后期功能化。

  DOI：

  10.1126/science.abj0731

文献信息

• Lubricant base oil for power transmission
  申请人：NEW JAPAN CHEMICAL CO., LTD.

  公开号：US10947472B2

  公开（公告）日：2021-03-16

  An object of the present invention is to provide a lubricant base oil for power transmission (in particular, a lubricant base oil for traction drives) having a high traction coefficient and a high flash point. The present invention relates to a lubricant base oil for power transmission comprising an alicyclic dicarboxylic acid diester compound represented by general formula (1): wherein R1 to R5 are the same or different, and each represents hydrogen or linear or branched C1-4 alkyl, and two R1, two R2, two R3, two R4, and two R5 may respectively be the same or different; and ring A is wherein R represents C1-3 alkyl, and n represents 0, 1, or 2; when n represents 2, R may be the same or different.

  本发明的目的是提供一种用于动力传输（特别是牵引传动）具有高牵引系数和高闪点的润滑基础油。本发明涉及一种用于动力传输的润滑基础油，包括一个由通式（1）表示的脂环族二羧酸二酯化合物：其中R1至R5相同或不同，每个代表氢或线性或支链C1-4烷基，两个R1、两个R2、两个R3、两个R4和两个R5可以分别相同或不同；环A为：其中R表示C1-3烷基，n表示0、1或2；当n表示2时，R可以相同或不同。
• SYNTHETIC LUBRICATING OIL
  申请人：Kao Corporation

  公开号：EP0779289A1

  公开（公告）日：1997-06-18

  The present invention relates to a synthetic lubricating oil comprising cyclic ketals or cyclic acetals obtained by a reaction between one or more polyhydric alcohols having an even number of hydroxyl groups of not less than 4 and not more than 10 and one or more specific carbonyl compounds, or one or more ketals or acetals which are reactive derivatives of said carbonyl compounds; a working fluid composition for a refrigerating machine comprising a hydrofluorocarbon and a refrigeration oil containing the cyclic ketals or cyclic acetals; and novel compounds of the above cyclic acetals and a production method thereof. The present invention provides a synthetic lubricating oil which shows a good thermal stability, a good oxidation resistance, no carboxylic acid formation due to hydrolysis and a low hygroscopicity and is inexpensive as well. Also, a working fluid composition for a refrigerating machine which shows a good insulating property, favorable hygroscopicity, and no carboxylic acid formation due to hydrolysis as well as being inexpensive can be provided.

  本发明涉及一种合成润滑油，它包含由一种或多种羟基数目不少于 4 个但不多于 10 个的多元醇与一种或多种特定羰基化合物或一种或多种作为上述羰基化合物反应衍生物的酮或缩醛反应而得的环酮或环缩醛；用于制冷机的工作流体组合物，包括氢氟碳化合物和含有环酮或环乙醛的冷冻油；以及上述环乙醛的新型化合物及其生产方法。本发明提供了一种合成润滑油，它具有良好的热稳定性和抗氧化性，不会因水解而形成羧酸，吸湿性低，而且价格低廉。此外，本发明还提供了一种用于制冷机的工作液组合物，它具有良好的绝缘性能、吸湿性好、不会因水解而形成羧酸，而且价格低廉。
• PACKAGING MATERIAL FOR PACKAGING OF CONTAINER HAVING PHOTOSENSITIVE COMPOSITION FILLED THEREIN
  申请人：Sumitomo Chemical Company, Limited

  公开号：EP2292531A1

  公开（公告）日：2011-03-09

  A packaging material for packaging a container having a photosensitive composition filled therein, which comprises a film having a transmittance of a light in a wavelength range of 200 nm to 500 nm of 5% or less and a transmittance of a light in a wavelength range of 620 nm to 940 nm of 10% or more.

  一种用于包装装有感光成分的容器的包装材料，它包括一层薄膜，该薄膜对波长范围为 200 纳米至 500 纳米的光的透过率为 5%或以下，对波长范围为 620 纳米至 940 纳米的光的透过率为 10%或以上。
• LUBRICATING BASE OIL FOR FLUID DYNAMIC BEARING
  申请人：New Japan Chemical Co., Ltd.

  公开号：EP3901130A1

  公开（公告）日：2021-10-27

  An object of the present invention is to provide an ester-based lubricating base oil for a fluid bearing that has a high viscosity index and excellent evaporation resistance, hydrolytic stability, and low-temperature fluidity. The present invention relates to a lubricating base oil for a fluid bearing containing a compound represented by general formula (1): wherein R1 represents a linear C2-C16 alkyl group, m represents an integer of 2 to 10, and n represents an integer of 4 to 14.

  本发明的目的是提供一种用于流体轴承的酯基润滑基础油，它具有高粘度指数和优异的抗蒸发性、水解稳定性和低温流动性。本发明涉及一种用于流体轴承的润滑基础油，其中含有通式 (1) 所代表的化合物： 其中 R1 代表线性 C2-C16 烷基，m 代表 2-10 的整数，n 代表 4-14 的整数。
• Positive resist film laminate and pattern forming process
  申请人：Shin-Etsu Chemical Co., Ltd.

  公开号：US10719015B2

  公开（公告）日：2020-07-21

  A laminate comprising a thermoplastic film and a positive resist film is provided, the positive resist film comprising (A) a novolak resin-naphthoquinone diazide (NQD) base resin composition, (B) a polyester, and (C) 3-30 wt % of an organic solvent. The resist film may be transferred to a stepped support without forming voids.

  提供了一种由热塑性薄膜和正极抗蚀膜组成的层压板，正极抗蚀膜包括 (A) 酚醛树脂-重氮化萘醌（NQD）基树脂组合物、(B) 聚酯和 (C) 3-30 wt % 的有机溶剂。抗蚀剂薄膜可转移到阶梯状支撑物上而不会形成空隙。