1,2,4,5-benzenetetraic acid tetraisopropyl ester | 86863-94-7

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: 1,2,4,5-benzenetetraic acid tetraisopropyl ester
• 英文别名: pyromellitic acid tetra(iso-propyl) ester；tetraisopropyl pyromellitate；Tetrapropan-2-yl benzene-1,2,4,5-tetracarboxylate
• CAS: 86863-94-7
• 化学式: C₂₂H₃₀O₈
• 分子量: 422.475
• InChiKey: WVKINQYGQXSWOU-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.5
• 重原子数：
  30
• 可旋转键数：
  12
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.55
• 拓扑面积：
  105
• 氢给体数：
  0
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  三甲基氯硅烷 、 1,2,4,5-benzenetetraic acid tetraisopropyl ester 在 2,2,6,6-tetramethylpiperidinyl-lithium 作用下， 以 四氢呋喃 为溶剂， 以48%的产率得到3,6-Bis-trimethylsilanyl-benzene-1,2,4,5-tetracarboxylic acid tetraisopropyl ester
  参考文献：
  名称：

  含亲电导向基团的邻位锂化苯的原位捕获

  摘要：

  Du piegeage in situ, utilisant des piegeselectrophiles: (chlorotrimethyl) 硅烷, (dichlorodimethyl) 硅烷, 三甲氧基硼烷, des eseses aryllithiumderived de la reaction d'une base encombree le tetramethyl-2,2,6,6 piperidinure delithium avec des底物 tels que：苯甲腈、苯甲酸酯、芳基丙酮和芳砜

  DOI：

  10.1021/ja00357a034

文献信息

• A process of producing a polyimide block copolymer
  申请人：JAPAN SYNTHETIC RUBBER CO., LTD.

  公开号：EP0725302A2

  公开（公告）日：1996-08-07

  A polyamide-type copolymer, a process of producing the same and use of the same in a thin layer forming agent. In order to provide a polyamide-type copolymer suitable for producing an alignment layer in an SBE type display element with high transparency, adhesion, pretilt angle etc, the present invention provides processes of producing a block copolymer type polyamic acid, a polyimide block copolymer, a polyimide-polyamic acid block copolymer and a liquid crystal alignment layer wherein, in separate steps, first and second prepolymers comprising polyamic acid prepolymers or polyamide prepolymers are prepared and subsequently reacted together, and if necessary, imidised. The invention also provides a thin layer forming agent having a first polyimide-type block and a second polyimide-type block bonded to the first polyimide-type block and having a different structure from the first polyimide type block.

  一种聚酰胺型共聚物、其生产工艺以及其在薄层成型剂中的用途。 为了提供一种聚酰胺型共聚物，使其适用于在 SBE 型显示元件中生产具有高透明 度、高附着力和高前倾角等特性的对位层，本发明提供了生产聚酰胺型嵌段共聚物、 聚酰亚胺嵌段共聚物、聚酰亚胺-聚酰胺嵌段共聚物和液晶对位层的工艺，其中，在 不同步骤中，制备了由聚酰胺预聚物或聚酰胺预聚物组成的第一和第二预聚物， 然后将它们反应在一起，必要时进行亚胺化。 本发明还提供了一种薄层形成剂，它具有第一聚酰亚胺型嵌段和与第一聚酰亚胺型嵌段粘合在一起的第二聚酰亚胺型嵌段，其结构与第一聚酰亚胺型嵌段不同。
• PROCESS FOR THE PREPARATION OF CYCLOHEXANEDIMETHANOL
  申请人：NEW JAPAN CHEMICAL CO.,LTD.

  公开号：EP0922690A1

  公开（公告）日：1999-06-16

  This invention provides a process for preparing cyclohexanedimethanol comprising hydrogenating a cyclohexanedicarboxylic acid dialkyl ester by a fixed-bed continuous reaction in the presence of a preformed copper-containing catalyst under the conditions of reaction temperature of 200 to 280°C, hydrogen pressure of 185 to 300 kgf/cm2 and hydrogen gas feed rate of 1 to 40 cm/s in terms of superficial linear velocity, the cyclohexanedicarboxylic acid dialkyl ester being prepared, typically, by ring hydrogenating of an aromatic dicarboxylic acid dialkyl ester in the presence of a preformed supported ruthenium catalyst by a fixed-bed continuous reaction.

  本发明提供了一种制备环己烷二甲醇的工艺，该工艺包括在预制含铜催化剂存在下，通过固定床连续反应对环己烷二羧酸二烷基酯进行氢化，反应温度为200至280℃，氢气压力为185至300千克/平方厘米，氢气进料速度为1至40厘米/秒、氢气压力为 185 至 300 kgf/cm2，氢气进料速度（以表面线速度计）为 1 至 40 cm/s，环己烷二羧酸二烷基酯的制备通常是通过芳香族二羧酸二烷基酯在预制的支撑钌催化剂存在下通过固定床连续反应进行环氢化。
• SPRAY COATING SOL, VINYL CHLORIDE RESIN MOLDED BODY WITH SPRAY COATING LAYER, MANUFACTURING METHOD FOR SAID MOLDED BODY, AND LAMINATE
  申请人：Zeon Corporation

  公开号：EP3438216A1

  公开（公告）日：2019-02-06

  Provided is a spray coating sol having adequate fluidity and excellent thermal stability. The spray coating sol of the disclosure for forming a spray coating layer of an automobile interior material contains vinyl chloride-based fine particles, a plasticizer, and a solvent and has a viscosity of 500 mPa-s or more and 50000 mPa·s or less.

  本发明提供了一种具有足够流动性和优异热稳定性的喷涂溶胶。本公开中用于形成汽车内饰材料喷涂层的喷涂溶胶含有氯乙烯基细颗粒、增塑剂和溶剂，其粘度为 500 mPa-s 或以上，50000 mPa-s 或以下。
• VINYL CHLORIDE RESIN COMPOSITION, VINYL CHLORIDE RESIN MOLDED ARTICLE, AND LAMINATE
  申请人：Zeon Corporation

  公开号：EP3438188A1

  公开（公告）日：2019-02-06

  A vinyl chloride resin composition with which an increase in surface gloss can be suppressed even in the case of repeating the molding of a vinyl chloride resin molded product using the same mold and also favorable tensile elongation and low surface stickiness can be ensured is provided. A vinyl chloride resin composition comprises: a vinyl chloride resin; a plasticizer; and a silicone oil, wherein a content of the plasticizer relative to 100 parts by mass of the vinyl chloride resin is 80 parts by mass or more, a content of the silicone oil relative to 100 parts by mass of the plasticizer is 0.01 parts by mass or more, and a predetermined weight reduction rate of the silicone oil is 7.0 mass% or less.

  本发明提供了一种氯乙烯树脂组合物，即使在使用同一模具重复成型氯乙烯树脂模塑产品的情况下，也能抑制表面光泽度的增加，同时还能确保良好的拉伸伸长率和低表面粘性。一种氯乙烯树脂组合物包括：氯乙烯树脂、增塑剂和硅油，其中增塑剂的含量相对于 100 质量份的氯乙烯树脂为 80 质量份或以上，硅油的含量相对于 100 质量份的增塑剂为 0.01 质量份或以上，硅油的预定减重率为 7.0 质量％或以下。
• VINYL CHLORIDE RESIN COMPOSITION, VINYL CHLORIDE RESIN MOLDED ARTICLE AND LAMINATE
  申请人：Zeon Corporation

  公开号：EP3521362A1

  公开（公告）日：2019-08-07

  Provided is a vinyl chloride resin composition that enables production of a vinyl chloride resin molded product that has excellent surface lubricity and can inhibit formation of voids in a foamed polyurethane molded product laminated therewith. The vinyl chloride resin composition contains a vinyl chloride resin, a plasticizer, and ether-modified silicone oil.

  本发明提供了一种氯乙烯树脂组合物，可用于生产表面润滑性极佳的氯乙烯树脂模塑产品，并可抑制与之层压的发泡聚氨酯模塑产品中空隙的形成。该氯乙烯树脂组合物含有氯乙烯树脂、增塑剂和醚改性硅油。