tetraethylsuccinic acid | 4111-60-8

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: tetraethylsuccinic acid
• 英文别名: Tetraaethyl-bernsteinsaeure；Tetraaethyl Bernsteinsaeure；Tetraethyl-bernsteinsaeure；Tetraethylbernsteinsaeure；Tetraethylbutanedioic acid；2,2,3,3-tetraethylbutanedioic acid
• CAS: 4111-60-8
• 化学式: C₁₂H₂₂O₄
• 分子量: 230.304
• InChiKey: CQCFISPMNREOQX-UHFFFAOYSA-N

物化性质

• 溶解度：
  0.00 M

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 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：
  74.6
• 氢给体数：
  2
• 氢受体数：
  4

安全信息

• 海关编码：
  2917190090

反应信息

• 作为反应物：
  描述：

  tetraethylsuccinic acid 在 lithium aluminium tetrahydride 作用下， 以 乙醚 为溶剂， 生成 2,2,3,3-tetraethyl-butane-1,4-diol
  参考文献：
  名称：

  Conformational Effects and Hydrogen Bonding in 1,4-Diols

  摘要：

  DOI：

  10.1021/ja01058a022
• 作为产物：
  描述：

  3,3,4,4-四乙基四氢呋喃-2,5-二酮 在 水 作用下， 生成 tetraethylsuccinic acid
  参考文献：
  名称：

  Cyclic anhydrides. III. Equilibrium constants for the acid-anhydride equilibrium in aqueous solutions of certain vicinal diacids

  摘要：

  DOI：

  10.1021/ja00751a040

文献信息

• MANUFACTURING METHOD OF SOLID CATALYST FOR PROPYLENE POLYMERIZATION
  申请人：Samsung Total Petrochemicals Co. Ltd.

  公开号：EP2511303A2

  公开（公告）日：2012-10-17

  Disclosed is a method for preparing a solid catalyst for propylene polymerization, specifically to a method for preparing a solid catalyst for propylene polymerization which can produce a polypropylene having high melt flow rate, a wide molecular distribution and excellent stereoregularity with a high production yield.

  本发明公开了一种丙烯聚合用固体催化剂的制备方法，特别是一种丙烯聚合用固体催化剂的制备方法，该方法可以生产出熔体流动速率高、分子分布广、立体规整性好、产量高的聚丙烯。
• Solid catalyst component for use in olefin polymerisation, catalyst, and application thereof
  申请人：BEIJING LIHE TECHNOLOGY LTD

  公开号：US11136421B2

  公开（公告）日：2021-10-05

  Provided in the present invention is a solid catalyst component for use in olefin polymerisation, comprising Mg, Ti, a halogen, and at least one electron donor, the electron donor being a 2-substituted amino-phenyl ester compound selected from general formula (I). Also disclosed in the present invention are a catalyst comprising the solid catalyst component, and an application for the catalyst in olefin polymerisation, particularly in propylene polymerization. Also provided in the present invention is a high activity catalyst, said catalyst being able to obtain polypropylene of high isotacticity and wide molecular weight distribution, and not requiring an external electron donor to obtain high isotacticity polypropylene; during polymerization, Al/Ti and Al/Si are reduced, the polymerization time is lengthened, and high activity can still be maintained, suitable for producing low-ash polymers.

  本发明提供了一种用于烯烃聚合的固体催化剂组分，包括 Mg、Ti、卤素和至少一种电子供体，电子供体为选自通式 (I) 的 2-取代氨基苯基酯化合物。本发明还公开了一种包含固体催化剂组分的催化剂，以及该催化剂在烯烃聚合，特别是丙烯聚合中的应用。本发明还提供了一种高活性催化剂，所述催化剂能够获得高同素异形度和宽分子量分布的聚丙烯，并且不需要外部电子供体即可获得高同素异形度聚丙烯；在聚合过程中，Al/Ti 和 Al/Si 降低，聚合时间延长，仍可保持高活性，适用于生产低灰分聚合物。
• Walker,J.; Walker,A. P., Journal of the Chemical Society, 1905, vol. 87, p. 965,967
  作者：Walker,J.、Walker,A. P.

  DOI：——

  日期：——
• Stefl, Diss.Techn.Hochsch.Muenchen <1914>,S.14
  作者：Stefl

  DOI：——

  日期：——
• Benzodiazepines and anterior pituitary function
  作者：E. Arvat、R. Giordano、S. Grottoli、E. Ghigo

  DOI：10.1007/bf03345110

  日期：2002.9

  Benzodiazepines (BDZ) are one of the most prescribed classes of drugs because of their marked anxiolytic, anticonvulsant, muscle relaxant and hypnotic effects. The pharmacological actions of BDZ depend on the activation of 2 specific receptors. The central BDZ receptor, present in several areas of the central nervous system (CNS), is a component of the GABA-A receptor, the activation of which increases GABAergic neurotransmission and is followed by remarkable neuroendocrine effects. The peripheral benzodiazepine receptors (PBR), structurally and functionally different from the GABA-A receptor, have been shown in peripheral tissues but also in the CNS, in both neurones and glial cells, and in the pituitary gland. BDZ receptors bind to a family of natural peptides called endozepines, firstly isolated from neurons and glial cells in the brain and then in several peripheral tissues as well. Endozelpines modulate several central and peripheral biological activities, including some neuroendocrine functions and synthetic BDZ are likely to mimic them, at least partially. BZD, especially alprazolam (AL), possess a clear inhibitory influence on the activity of the HPA axis in both animals and humans. This effect seems to be mediated at the hypothalamic and/or suprahypothalamic level via suppression of CRH. The strong negative influence of AL on hypothalamic-pituitary-adrenal (HPA) axis agrees with its peculiar efficacy in the treatment of panic disorders and depression. BZD have also been shown to increase GH secretion via mechanisms mediated at the hypothalamic or supra-hypothalamic level, though a pituitary action cannot be ruled out. Besides the impact on HPA and somatotrope function, BDZ also significantly affect the secretion of other pituitary hormones, such as gonadotropins and. PRL, probably acting through GABAergic mediation in the hypothalamus and/or in the pituitary gland. In all, BDZ are likely to represent a useful tool to investigate GABAergic activity and clarify its role in the neuroendocrine control of anterior pituitary function; their usefulness probably overrides what had been supposed before.