Oxalsaeure-dineopentylester | 33560-64-4

• 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: Oxalsaeure-dineopentylester
• 英文别名: Oxalic acid, dineopentyl ester；bis(2,2-dimethylpropyl) oxalate
• CAS: 33560-64-4
• 化学式: C₁₂H₂₂O₄
• 分子量: 230.304
• InChiKey: MYFPLOUCVACSRO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  16
• 可旋转键数：
  7
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.83
• 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：

  草酰氯 、 新戊醇 在 吡啶 作用下， 以 乙醚 为溶剂， 生成 Oxalsaeure-dineopentylester
  参考文献：
  名称：

  EPR-抗硫化碳素-I：草酸脲基-Radikalanionen（二烷氧基半二酮）

  摘要：

  通过内部电解，将草酸二烷基酯和草酸二苯酯还原为相应的自由基阴离子3a-3p（“二烷氧基亚氨基阴离子”）。关于自旋密度分布和构象，解释了该物种的EPR光谱，即由α质子产生的HFS耦合常数。结果表明，取决于β的大小，伯烷基在α-CH键的方向与π电子系统的z轴之间的时间平均二面角θ为42-47°。 -取代基，而次要基团的CH键从π轨道轴上旋转约60°。

  DOI：

  10.1016/s0040-4020(01)98236-5

文献信息

• METHOD FOR PRODUCING OLIGOMER AND/OR MONOMER BY DEGRADING BIODEGRADABLE RESIN
  申请人：Toyo Seikan Kaisha, Ltd.

  公开号：EP2348122A1

  公开（公告）日：2011-07-27

  An object of the present invention is to provide a method for efficiently producing an oligomer or a monomer by degrading a biodegradable resin using an enzyme, so that the oligomer or the monomer can be recovered. The present invention provides a method for producing an oligomer and/or a monomer by degrading a biodegradable resin in a degradation liquid containing a biodegradation enzyme, a buffer agent, an organic solvent, and water. In this method, the SP value of the organic solvent is less than 8.5 or more than 11.5, and the percentage content of the organic solvent (by volume) in the degradation liquid is higher than 1% and lower than 15%. In the method for producing an oligomer or a monomer, the degradation percentage of the biodegradable resin is low, and deposits of aggregates of the oligomer and/or the monomer are few, so that the recovery percentage is high.

  本发明的目的是提供一种方法，通过使用酶降解可生物降解树脂，高效生产低聚物或单体，从而回收低聚物或单体。 本发明提供了一种通过在含有生物降解酶、缓冲剂、有机溶剂和水的降解液中降解可生物降解树脂来生产低聚物和/或单体的方法。在该方法中，有机溶剂的 SP 值小于 8.5 或大于 11.5，降解液中有机溶剂的百分比含量（按体积计）高于 1%，低于 15%。在生产低聚物或单体的方法中，生物降解树脂的降解率低，低聚物和/或单体的聚集沉淀物少，因此回收率高。
• Method for Producing Oligomer and/or Monomer by Degrading Biodegradable Resin
  申请人：Yoshikawa Seishi

  公开号：US20110201069A1

  公开（公告）日：2011-08-18

  An object of the present invention is to provide a method for efficiently producing an oligomer or a monomer by degrading a biodegradable resin using an enzyme, so that the oligomer or the monomer can be recovered. The present invention provides a method for producing an oligomer and/or a monomer by degrading a biodegradable resin in a degradation liquid containing a biodegradation enzyme, a buffer agent, an organic solvent, and water. In this method, the SP value of the organic solvent is less than 8.5 or more than 11.5, and the percentage content of the organic solvent (by volume) in the degradation liquid is higher than 1% and lower than 15%. In the method for producing an oligomer or a monomer, the degradation percentage of the biodegradable resin is low, and deposits of aggregates of the oligomer and/or the monomer are few, so that the recovery percentage is high.
• Method for Degrading Biodegradable Resin
  申请人：Yoshikawa Seishi

  公开号：US20130288322A1

  公开（公告）日：2013-10-31

  A method for degrading a readily degradable resin composition comprising an aliphatic polyester (A) which is biodegradable, and an aliphatic polyester (B′) which releases an acid upon hydrolysis and which is biodegradable at a higher degradation rate than that of the aliphatic polyester (A), the method comprising degrading the readily degradable resin composition in an enzyme reaction liquid containing a degradation enzyme, and an acid neutralizing agent incompatible with the enzyme reaction liquid.
• Method for Degrading a Readily-degradable Resin Composition
  申请人：TOYO SEIKAN KAISHA, LTD.

  公开号：US20150010974A1

  公开（公告）日：2015-01-08

  A method for degrading a readily degradable resin composition comprising an aliphatic polyester (A) which is biodegradable, and an aliphatic polyester (B′) which releases an acid upon hydrolysis and which is biodegradable at a higher degradation rate than that of the aliphatic polyester (A), the method comprising degrading the readily degradable resin composition in an enzyme reaction liquid containing a degradation enzyme, and an acid neutralizing agent incompatible with the enzyme reaction liquid.
• US8501445B2
  申请人：——

  公开号：US8501445B2

  公开（公告）日：2013-08-06