Bis-(2,2,6,6-tetramethyl-4-piperidyl)-terephthalat | 30538-91-1

• 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: Bis-(2,2,6,6-tetramethyl-4-piperidyl)-terephthalat
• 英文别名: di-(2,2,6,6-tetramethylpiperidin-4-yl) terephthalate；bis(2,2,6,6-tetramethyl-4-piperidyl) terephthalate；bis(2,2,6,6-tetramethylpiperidin-4-yl) benzene-1,4-dicarboxylate
• CAS: 30538-91-1
• 化学式: C₂₆H₄₀N₂O₄
• 分子量: 444.615
• InChiKey: GHJBIWHWRNKOFW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.3
• 重原子数：
  32
• 可旋转键数：
  6
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.69
• 拓扑面积：
  76.7
• 氢给体数：
  2
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  叔丁基过氧化氢 、 Bis-(2,2,6,6-tetramethyl-4-piperidyl)-terephthalat 以 乙基苯 为溶剂， 生成 di-(1-alpha-methylbenzyloxy-2,2,6,6-tetramethylpiperidin-4-yl) terephthalate
  参考文献：
  名称：

  Process for preparing N-hydrocarbyloxy derivatives of sterically

  摘要：

  根据公式##STR1##制备的N-烃氧基化合物，其中E.sub.1、E.sub.2、E.sub.3和E.sub.4分别是有机基团，使得它们连接的碳原子均为四级碳，R是烃基团，T是二价基团，通过在烃有机溶剂中，将相应的胺或氧基化合物与过氧化氢在金属羰基、金属氧化物或金属烷氧化物催化剂的存在下直接反应，可以高产率高纯度地制备这些化合物。这些化合物在各种基质系统中作为光稳定剂具有实用价值。

  公开号：

  US04921962A1

文献信息

• PIPERIDINE DERIVATIVE, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE
  申请人：JNC CORPORATION

  公开号：US20160039758A1

  公开（公告）日：2016-02-11

  To provide a liquid crystal composition containing a compound that is effective in preventing photolysis of the liquid crystal composition, and has high solubility in the liquid crystal composition, and to provide a liquid crystal display device including the composition. The liquid crystal composition contains a compound represented by formula (1), and a liquid crystal display device uses the composition: in which, in formula (1), R 1 to R 8 are hydrogen or alkyl having 1 to 4 carbons; ring A 1 and ring A 2 are cyclohexylene, phenylene, naphthalenediyl or the like; Z 1 , Z 2 and Z 3 are a single bond or the like; and a and b are independently 1 or 2, and c is 0, 1 or 2.

  为了提供一种液晶组合物，其中包含一种化合物，该化合物有效地防止液晶组合物的光解，并且在该液晶组合物中具有高溶解度，以及提供一种包含该组合物的液晶显示器。该液晶组合物包含由公式(1)表示的化合物，而液晶显示器使用该组合物：在公式(1)中，R1至R8是氢或具有1至4个碳原子的烷基；环A1和环A2是环己烯基、苯基、萘基等；Z1、Z2和Z3是单键等；a和b独立地为1或2，而c为0、1或2。
• O-substituted N-hydroxy hindered amine stabilizers
  申请人：Ciba-Geigy Corporation

  公开号：US05204473A1

  公开（公告）日：1993-04-20

  Hindered amines based on various 2,2,6,6-tetraalkylated nitrogen-containing heterocyclic moieties wherein the hindered nitrogen atom on the ring is substituted with OR.sub.1 substituents and the 4-position of the ring is substituted with a variety of groups, are effective as light stabilizers in diverse substrate systems.

  基于各种2,2,6,6-四烷基氮杂环基团的受阻胺，其中环上的受阻氮原子被取代为OR.sub.1取代基，环的4位被取代为各种基团，对于不同基质系统中的光稳定剂是有效的。
• MODIFIED ZNO NANOPARTICLES
  申请人：Riggs Richard

  公开号：US20120097068A1

  公开（公告）日：2012-04-26

  Process for the preparation of modified zinc oxide nanoparticles, which comprises reacting zinc oxide nanoparticles, which are dissolved in a solvent, in the presence of ammonia or amines with a tetraalkyl orthosilicate and optionally with an organosilane, with the proviso that the reaction takes place at a content of less than 5% by weight of water, based on the total amount of solvent and water. Modified zinc oxide nanoparticles which have Si—O-alkyl groups and are soluble in organic solvents, obtainable by this process for the preparation. Liquid or solid formulations which comprise modified ZnO nanoparticles. Inanimate organic materials, for example plastics or coatings, which comprise modified ZnO nanoparticles. Method of stabilizing inanimate organic materials against the effect of light, free radicals or heat, where modified ZnO nanoparticles, which optionally comprise UV absorbers and/or stabilizers as further additives, are added to the materials.

  制备改性氧化锌纳米颗粒的过程包括在溶剂中溶解的氧化锌纳米颗粒与氨或胺在场的情况下，与四烷基正硅酸酯和可选的有机硅烷反应，但反应需在溶剂和水的总量中水含量低于5%的条件下进行。通过该制备过程可获得具有Si-O-烷基基团且可溶于有机溶剂的改性氧化锌纳米颗粒。包含改性ZnO纳米颗粒的液体或固体配方。包含改性ZnO纳米颗粒的无机有机材料，例如塑料或涂料。一种稳定无机有机材料抵抗光线、自由基或热效应的方法，其中将改性ZnO纳米颗粒添加到材料中，这些纳米颗粒可包含紫外吸收剂和/或稳定剂作为进一步添加剂。
• PIPERIDINE DERIVATIVE, LIQUID CRYSTAL COMPOSITION, AND LIQUID CRYSTAL DISPLAY ELEMENT
  申请人：JNC CORPORATION

  公开号：US20160289189A1

  公开（公告）日：2016-10-06

  To provide a compound having an effect for preventing photolysis of a liquid crystal composition, and having a high solubility in the liquid crystal composition, a liquid crystal composition containing the compound, and a liquid crystal display device including the composition. The compound is represented by formula (1), the liquid crystal composition contains the compound, and the liquid crystal display device includes the composition. In formula (1), R 1 , R 2 , R 3 and R 4 are independently hydrogen or alkyl having 1 to 4 carbons; ring A 1 and ring A 2 are independently 1,4-cyclohexylene, 1,4-phenylene or the like; Z 1 , Z 2 and Z 3 are independently a single bond, alkylene or the like; and n is 0, 1 or 2.

  为了提供一种具有防止液晶组分光解作用的效果，并且在液晶组分中具有高溶解度的化合物，提供了一种含有该化合物的液晶组合物和包含该组合物的液晶显示装置。该化合物由式（1）表示，液晶组合物中含有该化合物，液晶显示装置包括该组合物。在式（1）中，R1、R2、R3和R4分别独立表示氢或具有1至4个碳的烷基；环A1和环A2独立表示1,4-环己烯基、1,4-苯基或类似物；Z1、Z2和Z3独立表示单键、烷基或类似物；n为0、1或2。
• POLYACETAL RESIN COMPOSITION AND MOLDINGS
  申请人：——

  公开号：US20030158301A1

  公开（公告）日：2003-08-21

  The polyacetal resin composition contains about 0.01-10 parts by weight of a glyoxyldiureide compound per 100 parts by weight of polyacetal resin. The glyoxyldiureide compound includes glyoxyldiureide and its derivatives (metal salts etc.). Optionally, about 0.01-10 parts by weight of a basic nitrogen-containing compound is further added. The basic nitrogen-containing compound includes melamine, melamine resin, and polyamide resin. Further, an antioxidant may be further added. The above composition contributes to stability, particularly heat stability, of polyacetal resin and suppression of emission of formaldehyde.

  聚乙二醇树脂组成物含有每100份聚乙二醇树脂约0.01-10份重量的甘氧基二脲化合物。该甘氧基二脲化合物包括甘氧基二脲及其衍生物（金属盐等）。可选择地，还可进一步添加约0.01-10份重量的碱性含氮化合物。碱性含氮化合物包括三聚氰胺、三聚氰胺树脂和聚酰胺树脂等。此外，还可以进一步添加抗氧化剂。以上组成物有助于提高聚乙二醇树脂的稳定性，特别是热稳定性，并抑制甲醛的排放。