cyclohexa-3,5-diene-1,2-dicarboxylic acid diethyl ester | 6268-45-7

• 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: cyclohexa-3,5-diene-1,2-dicarboxylic acid diethyl ester
• 英文别名: Cyclohexa-3,5-dien-1,2-dicarbonsaeure-diaethylester；diethyl dihydrophthalate；Diethyl cyclohexa-3,5-diene-1,2-dicarboxylate
• CAS: 6268-45-7
• 化学式: C₁₂H₁₆O₄
• 分子量: 224.257
• InChiKey: ZMWWFHIWAOSXDM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2
• 重原子数：
  16
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  52.6
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  邻苯二甲酸 在 硫酸 作用下， 生成 1,2-二氢邻苯二甲酸 、 cyclohexa-3,5-diene-1,2-dicarboxylic acid diethyl ester
  参考文献：
  名称：

  Somlo, Zeitschrift fur Elektrochemie und angewandte physikalische Chemie, 1929, vol. 35, p. 773

  摘要：

  DOI：

文献信息

• Method for purifying an organic solvent for the purposes of absorption of maleic acid anhydride
  申请人：——

  公开号：US20040127726A1

  公开（公告）日：2004-07-01

  In a process for purifying an organic solvent for the absorption of maleic anhydride from a gaseous mixture, in which the maleic anhydride is separated off from the solvent, a substream is taken from the solvent stream, this substream is distilled and returned to the solvent circuit, the proposed improvement comprises separating off a low-boiling fraction and a high-boiling fraction from the fraction consisting essentially of purified solvent and feeding the fraction consisting essentially of purified solvent back into the solvent stream.

  在一种用于从气态混合物中吸收顺丁烯二酸酐的有机溶剂的提纯工艺中，顺丁烯二酸酐从溶剂中分离出来，从溶剂流中提取一个子流，这个子流经过蒸馏后返回溶剂回路，建议的改进包括从主要由提纯溶剂组成的馏分中分离出一个低沸点馏分和一个高沸点馏分，并将主要由提纯溶剂组成的馏分送回溶剂流。
• PROCESS AND APPARATUS FOR THE PREPARATION AND RECOVERY OF MALEIC ANHYDRIDE
  申请人：HUNTSMAN PETROCHEMICAL CORPORATION

  公开号：EP0815098A1

  公开（公告）日：1998-01-07
• EP0815098A4
  申请人：——

  公开号：EP0815098A4

  公开（公告）日：1998-06-10
• IMPROVED SOLVENT FOR RECOVERY OF MALEIC ANHYDRIDE FROM A GAS STREAM
  申请人：Huntsman Petrochemical LLC

  公开号：EP2707402A1

  公开（公告）日：2014-03-19
• Solvent for Recovery of Maleic Anhydride from a Gas Stream
  申请人：Smith William Alan

  公开号：US20140081036A1

  公开（公告）日：2014-03-20

  A process is described for producing crude maleic anhydride from a reactor effluent stream containing maleic anhydride. The reactor effluent stream is contacted with a solvent having a normal boiling point between about 250° C. and about 350° C., solubility of fumaric acid at least about 0.06 wt % at 60° C., solubility of maleic anhydride at least about 10 wt % at 60° C., solubility in water no higher than about 100 mg/L, density different from the density of water by at least about 0.020 g/mL, and water soluble hydrolysis products with molecular weight no higher than the molecular weight of pentanol. The solvent may be non-cyclic, non-aromatic, linear, and/or branched, and may have the general structure R 1 COOR 2 COOR 3 , wherein R 1 and R 3 are each linear or branched C 3 to C 5 groups and R 2 is a linear or branched C 3 to C 8 group.