tetramethyl 5-(n-butyl)-1,2,3,4-benzenetetracarboxylate | 128408-43-5

• 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: tetramethyl 5-(n-butyl)-1,2,3,4-benzenetetracarboxylate
• 英文别名: 1,2,3,4-tetrakis(carbomethoxy)-n-butylbenzene；Tetramethyl 5-butylbenzene-1,2,3,4-tetracarboxylate
• CAS: 128408-43-5
• 化学式: C₁₈H₂₂O₈
• 分子量: 366.368
• InChiKey: YNSWFPAIBHFKPF-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  26
• 可旋转键数：
  11
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.44
• 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：

  丁炔二酸二甲酯 、 1-己炔 在 bis(1,5-cyclooctadiene)diiridium(I) dichloride 1,2-双(二苯基膦)乙烷 作用下， 以 甲苯 为溶剂， 反应 1.0h， 以98%的产率得到tetramethyl 5-(n-butyl)-1,2,3,4-benzenetetracarboxylate
  参考文献：
  名称：

  Iridium Complex-Catalyzed Highly Selective Cross [2 + 2 + 2] Cycloaddition of Two Different Monoynes:  2:1 Coupling versus 1:2 Coupling

  摘要：

  Highly selective cross [2 + 2 + 2] cycloaddition of two different monoynes is achieved by using a catalytic amount of [Ir(cod)Cl](2) and ligand. The ligand had a considerable effect on the reaction. When 1,2-bis(diphenylphosphino)ethane was used, two molecules of dimethyl acetylenedicarboxylate (DMAD) reacted with one molecule of a monoyne to give the 2:1 coupling product. When 1,2-bis(dipentafluorophenylphosphino)ethane was used instead of dppe, one molecule of DMAD reacted with two molecules of a monoyne to give the 1:2 coupling product.

  DOI：

  10.1021/ol035330d

文献信息

• Diazadienes as control ligands in homogeneous catalysis XVIII. Palladacyclopentadienes and platinacyclopentadienes and the co-cyclotrimerization of various alkynes
  作者：Heindirk tom Dieck、Christina Munz、Christiane Müller

  DOI：10.1016/0022-328x(90)87071-k

  日期：1990.2
• ALKYL BENZENE TETRACARBOXYLIC DIANHYDRIDE, MANUFACTURING METHOD THEREOF, POLYIMIDE, AND APPLICATION THEREOF
  申请人：Suzuki Hideo

  公开号：US20110257361A1

  公开（公告）日：2011-10-20

  Disclosed is a 5-alkyl-1,2,3,4-benzene tetracarboxylic-1:2,3:4-dianhydride which is represented by the general formula (1) and has excellent solubility with respect to various organic solvents. Depending on the diamine that is used, a polyimide with excellent heat resistance or a polyimide with good workability at a low melting point can be provided, and in addition, a polyimide that exhibits excellent characteristics for electronic materials or the like can be provided. (In the formula, R 1 represents an alkyl group with carbon number 1-10.)