Biphenyl-2,3,4,5-tetracarbonsaeure-tetramethylester | 128408-50-4

• 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: Biphenyl-2,3,4,5-tetracarbonsaeure-tetramethylester
• 英文别名: 2,3,4,5-tetrakis(carbomethoxy)biphenyl；tetramethyl 5-phenyl-1,2,3,4-benzenetetracarboxylate；biphenyl-2,3,4,5-tetracarboxylic acid tetramethyl ester；Tetramethyl biphenyltetracarboxylate；tetramethyl 5-phenylbenzene-1,2,3,4-tetracarboxylate
• CAS: 128408-50-4
• 化学式: C₂₀H₁₈O₈
• 分子量: 386.358
• InChiKey: KBJBEBLYDFKOFE-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  28
• 可旋转键数：
  9
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  105
• 氢给体数：
  0
• 氢受体数：
  8

反应信息

• 作为产物：
  描述：

  1,2-Dibrom-1:4,2:3-cyclobutantetracarbonsaeure-dianhydrid 在 对甲苯磺酸 、 胸苷酸 作用下， 以 氯仿 为溶剂， 反应 50.0h， 生成 Biphenyl-2,3,4,5-tetracarbonsaeure-tetramethylester
  参考文献：
  名称：

  Maier, Guenter; Wilmes, Rolf; Fuchs, Hansjoerg, Chemische Berichte, 1993, vol. 126, # 8, p. 1827 - 1834

  摘要：

  DOI：

文献信息

• METHOD FOR PRODUCING MULTISUBSTITUTED BIPHENYL COMPOUND AND SOLID CATALYST TO BE USED THEREIN
  申请人：KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION

  公开号：US20150274689A1

  公开（公告）日：2015-10-01

  A method for producing a multisubstituted biphenyl compound is represented by the following formula (2), including a step of coupling a substituted benzene compound represented by the following formula (1) in the presence of a solid catalyst with gold immobilized onto a support.

  生产多取代联苯化合物的方法由以下公式（2）表示，包括在固体催化剂存在下，将以下公式（1）表示的取代苯化合物与固载金进行偶联的步骤。
• Process for production of biphenyltetracarboxylic acid tetraesters
  申请人：UBE INDUSTRIES, LTD.

  公开号：US20040039222A1

  公开（公告）日：2004-02-26

  A production process, especially a continuous production process, for a biphenyltetracarboxylic acid tetraester characterized by carrying out, in parallel, a step of preliminarily mixing a phthalic acid diester and a palladium compound-containing catalyst to prepare a starting mixture, a step of continuously or intermittently supplying the starting mixture to a reactor, a step of conducting oxidative dimerization reaction of the phthalic acid diester in a temperature range of from 140° C. and lower than 250° C. while supplying molecular oxygen to the reactor to form a reaction mixture in the reactor, and a step of continuously or intermittently removing a portion of the reaction mixture from the reactor. Preferably, the palladium compound-containing catalyst in the starting mixture is dissolved in the phthalic acid diester, the palladium compound-containing catalyst comprises a palladium compound, a bidentate ligand and a copper compound, the reactor consists of a plurality of serially connected reactors and a carboxylic acid is also continuously or intermittently supplied to the reactor.

  一种生产过程，特别是用于制备二苯四羧酸四酯的连续生产过程，其特征在于并行进行以下步骤：预先混合邻苯二甲酸二酯和含钯化合物催化剂以制备起始混合物的步骤；连续或间歇地将起始混合物供给反应器的步骤；在向反应器供给分子氧以在温度范围从140°C至低于250°C内进行邻苯二甲酸二酯的氧化二聚反应以在反应器中形成反应混合物的步骤；以及连续或间歇地从反应器中移除部分反应混合物的步骤。优选，起始混合物中的含钯化合物催化剂溶解在邻苯二甲酸二酯中，含钯化合物催化剂包括钯化合物、双齿配体和铜化合物，反应器由多个串联的反应器组成，并且还连续或间歇地向反应器供给羧酸。
• Three-component synthesis of polysubstituted benzene derivatives via Diels–Alder reaction of cyclopentadienone acetal with alkyne
  作者：Sota Sato、Hiroyuki Isobe、Takatsugu Tanaka、Tomohiko Ushijima、Eiichi Nakamura

  DOI：10.1016/j.tet.2005.09.011

  日期：2005.11

  regioselective synthesis of polysubstituted benzene derivatives was achieved via multicomponent reaction of a substituted cyclopropenone acetal and two alkyne molecules. The synthesis utilizes cyclopentadienone acetal as an intermediate and enables regioselective [2+2+2] assembly of the three-components into a benzene ring. A variety of polysubstituted benzene derivatives of synthetic and structural interest

  通过取代的环丙烯酮缩醛与两个炔烃分子的多组分反应，可以实现多取代苯衍生物的高效区域选择性合成。该合成利用环戊二烯酮缩醛作为中间体，并使三组分的区域选择性[2 + 2 + 2]组装成苯环。已经合成了多种具有合成和结构意义的多取代苯衍生物。
• High-purity biphenyltetracarboxylic dianhydride and process for producing the same
  申请人：——

  公开号：US20040199010A1

  公开（公告）日：2004-10-07

  There is provided biphenyltetracarboxylic dianhydride containing biphenyltetracarboxylic monoanhydride in an amount of not more than 0.4%. By using the biphenyltetracarboxylic dianhydride as a raw material, it is possible to produce polyimide or polyamic acid having an increased molecular weight.

  提供了含有不超过0.4％的联苯四羧酸单酐的联苯四羧酸二酐。通过使用联苯四羧酸二酐作为原材料，可以生产分子量增加的聚酰亚胺或聚酰胺酸。
• Method of recovering palladium catalyst
  申请人：Ube Industries, Ltd.

  公开号：US04895596A1

  公开（公告）日：1990-01-23

  An improved method of recovering a palladium catalyst from a liquid reaction mixture having been produced by oxidative coupling reaction of an aromatic compound in the presence of a catalyst containing palladium(II) salt is disclosed. The improved method comprises heating the liquid reaction mixture under stirring at a temperature of 180.degree. to 280.degree. C. in an atmosphere containing hydrogen gas at a partial pressure of 5 to 60 kg/cm.sup.2 whereby reducing the catalyst in the reaction mixture and precipitating a metallic palladium from the reaction mixture.

  本发明公开了一种从含有钯(II)盐催化剂的液体反应混合物中回收钯催化剂的改进方法，该液体反应混合物是在催化剂存在下通过芳香化合物的氧化偶联反应产生的。所述改进方法包括在含有氢气的气氛下，在温度为180℃至280℃的条件下，在搅拌下加热液体反应混合物，从而还原反应混合物中的催化剂并从反应混合物中沉淀出金属钯。其中，氢气的分压为5至60千克/平方厘米。