diethyl 2,2,3,3-tetraethyl-1,4-butanedioate | 32885-01-1

• 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: diethyl 2,2,3,3-tetraethyl-1,4-butanedioate
• 英文别名: Ethyl-Tetraethylsuccinat；tetraethyl-succinic acid diethyl ester；Tetraaethyl-bernsteinsaeure-diaethylester；Diethyl 2,2,3,3-tetraethylbutanedioate
• CAS: 32885-01-1
• 化学式: C₁₆H₃₀O₄
• 分子量: 286.412
• InChiKey: OZDDMYZVHZPZJS-UHFFFAOYSA-N

物化性质

• 沸点：
  283.4±8.0 °C(Predicted)
• 密度：
  0.955±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.9
• 重原子数：
  20
• 可旋转键数：
  11
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.88
• 拓扑面积：
  52.6
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  diethyl 2,2,3,3-tetraethyl-1,4-butanedioate 在 氢溴酸 作用下， 生成 3,3,4,4-四乙基四氢呋喃-2,5-二酮
  参考文献：
  名称：

  Walker,J.; Walker,A. P., Journal of the Chemical Society, 1905, vol. 87, p. 965,967

  摘要：

  DOI：
• 作为产物：
  描述：

  alkaline earth salt of/the/ methylsulfuric acid 在 铜 、 xylene 作用下， 生成 diethyl 2,2,3,3-tetraethyl-1,4-butanedioate
  参考文献：
  名称：

  DE412820

  摘要：

  公开号：

文献信息

• Silver(I)/persulfate oxidative decarboxylation of carboxylic acids. Arylacetic acid dimerization.
  作者：William.E. Fristad、Jeffrey A. Klang

  DOI：10.1016/s0040-4039(00)81888-2

  日期：1983.1

  The oxidative decarboxylation of arylacetic acids by sodium persulfate and a catalytic amount of silver nitrate produces benzylic radicals which dimerize cleanly to give 1,2-diarylethanes.

  过硫酸钠和催化量的硝酸银对芳基丙烯酸的氧化脱羧作用产生苄基，该苄基可干净地二聚而得到1,2-二芳基乙烷。
• Propylene polymers
  申请人：Morini Giampiero

  公开号：US20050032633A1

  公开（公告）日：2005-02-10

  The present invention relates to a solid catalyst component for the polymerization of olefins CH 2 ═CHR in which R is hydrogen or a hydrocarbon radical with 1-12 carbon atoms, comprising Mg, Ti, halogen and an electron donor selected from substituted succinates of a particular formula. Said catalyst components when used in the polymerization of olefins, and in particular of propylene, are capable to give polymers in high yields and with high isotactic index expressed in terms of high xylene insolubility.

  本发明涉及一种用于聚合烯烃CH2═CHR（其中R为氢或具有1-12个碳原子的碳氢基团）的固体催化剂组分，包括镁、钛、卤素和从特定公式的取代琥珀酸酯中选择的电子给体。当在聚合烯烃，特别是丙烯的聚合中使用该催化剂组分时，能够以高收率和以高二甲苯不溶性表示的高同构指数给出聚合物。
• PROPYLENE RESIN COMPOSITION FOR RETORT POUCH-PACKAGING FILM
  申请人：Basell Poliolefine Italia S.r.l.

  公开号：EP2905309A1

  公开（公告）日：2015-08-12

  An object of the present invention is to provide a propylene resin composition having high processability to stably produce films, and a sealant film for retort pouch-packaging films prepared with the propylene resin composition and having high seal strength. The object is achieved by a propylene resin composition, comprising: a propylene homopolymer, and a propylene-ethylene copolymer dispersed in the propylene homopolymer, the propylene resin composition being prepared through polymerization of propylene and ethylene in the presence of a catalyst comprising: (A) a solid catalyst containing, as essential components, magnesium, titanium, halogen, and an electron donor selected from succinate type compounds, (B) an organoaluminum compound; and (C) an external electron donor selected from silicon compounds, wherein the propylene resin composition contains 25 to 35 wt% ethylene-propylene copolymer, the copolymer contains 60 wt% or more propylene, the propylene resin composition contains a xylene-soluble content having an intrinsic viscosity [η] of 1.8 to 3.2 dl/g, and the propylene resin composition has a melt flow rate of 2.0 to 5.0 g/10 min.

  本发明的目的是提供一种丙烯树脂组合物，该组合物具有较高的加工性，可以稳定地生产薄膜，还提供一种密封膜，该密封膜用于用该丙烯树脂组合物制备的蒸馏袋包装膜，具有较高的密封强度。上述目的是通过一种丙烯树脂组合物实现的，该组合物包括：丙烯均聚物和分散在丙烯均聚物中的丙烯-乙烯共聚物，丙烯树脂组合物是通过丙烯和乙烯在催化剂存在下的聚合反应制备的，催化剂包括： (A) 固体催化剂，其基本成分包括镁、钛、卤素和选自琥珀酸类化合物的电子供体、 (B) 有机铝化合物；以及 (C) 选自硅化合物的外部电子供体，其中丙烯树脂组合物含有 25 至 35 wt% 的乙烯-丙烯共聚物、 该共聚物含有 60 wt%或更多的丙烯、 丙烯树脂组合物含有本征粘度[η]为 1.8 至 3.2 dl/g 的二甲苯可溶物，以及 丙烯树脂组合物的熔体流动速率为 2.0 至 5.0 克/10 分钟。
• CATALYST COMPONENT FOR PROPYLENE POLYMERIZATION, PREPARATION METHOD THEREFOR AND CATALYST HAVING SAME
  申请人：China Petroleum&Chemical Corporation

  公开号：EP3135699A1

  公开（公告）日：2017-03-01

  The present invention discloses a catalyst component for propene polymerization, comprising titanium, magnesium, halogen, and internal electron donor A, wherein said internal electron donor A is selected from the compouns as shown in Formula I, in Formula I, R is selected from hydrogen, hydroxyl, and substituted or unsubstituted C1-C30 hydrocarbyl, preferably from hydrogen, hydroxyl, and substituted or unsubstituted C1-C20 alkyl, C6-C30 aryl, C6-C30 heteroaryl, C7-C30 alkylaryl and C7-C30 arylalkyl; R1 and R2 may be identical to or different from each other, and are selected from hydrogen and substituted or unsubstituted C1-C30 hydrocarbyl, preferably from hydrogen and substituted or unsubstituted C1-C20 alkyl, C6-C30 aryl, C7-C30 alkylaryl and C7-C30 arylalkyl. According to the present invention, by using the compound as shown in Formula I as internal electron donor compound for propene polymerization, the catalyst has a higher activity, and a slow rate of delay of activity. The obtained polymer has not only a wider molecular weight distribution, but also a high melt index and isotacticity.

  本发明公开了一种用于丙烯聚合的催化剂组分，由钛、镁、卤素和内部电子供体 A 组成，其中所述内部电子供体 A 选自如式 I 所示的化合物、 在式 I 中，R 选自氢、羟基和取代或未取代的 C1-C30 碳氢基，优选选自氢、羟基和取代或未取代的 C1-C20 烷基、C6-C30 芳基、C6-C30 杂芳基、C7-C30 烷芳基和 C7-C30 芳烷基；R1和R2可以彼此相同或不同，并且选自氢和取代或未取代的C1-C30烃基，优选选自氢和取代或未取代的C1-C20烷基、C6-C30芳基、C7-C30烷芳基和C7-C30芳烷基。根据本发明，使用如式 I 所示的化合物作为丙烯聚合的内部电子供体化合物，催化剂具有更高的活性，并且活性延迟的速度较慢。所得到的聚合物不仅分子量分布更广，而且熔融指数和等活度都很高。
• Catalyst component for propene polymerization, preparation method thereof, and catalyst containing the same
  申请人：China Petroleum & Chemical Corporation

  公开号：US10184017B2

  公开（公告）日：2019-01-22

  The present invention discloses a catalyst component for propene polymerization, comprising titanium, magnesium, halogen, and internal electron donor A, wherein said internal electron donor A is selected from the compounds as shown in Formula I, in Formula I, R is selected from hydrogen, hydroxyl, and substituted or unsubstituted C1-C30 hydrocarbyl, preferably from hydrogen, hydroxyl, and substituted or unsubstituted C1-C20 alkyl, C6-C30 aryl, C6-C30 heteroaryl, C7-C30 alkylaryl and C7-C30 arylalkyl; R1 and R2 may be identical to or different from each other, and are selected from hydrogen and substituted or unsubstituted C1-C30 hydrocarbyl, preferably from hydrogen and substituted or unsubstituted C1-C20 alkyl, C6-C30 aryl, C7-C30 alkylaryl and C7-C30 arylalkyl. According to the present invention, by using the compound as shown in Formula I as internal electron donor compound for propene polymerization, the catalyst has a higher activity, and a slow rate of delay of activity. The obtained polymer has not only a wider molecular weight distribution, but also a high melt index and isotacticity.

  本发明公开了一种用于丙烯聚合的催化剂组分，由钛、镁、卤素和内部电子供体 A 组成，其中所述内部电子供体 A 选自如式 I 所示的化合物、 在式 I 中，R 选自氢、羟基和取代或未取代的 C1-C30 碳氢基，优选选自氢、羟基和取代或未取代的 C1-C20 烷基、C6-C30 芳基、C6-C30 杂芳基、C7-C30 烷芳基和 C7-C30 芳烷基；R1和R2可以彼此相同或不同，并且选自氢和取代或未取代的C1-C30烃基，优选选自氢和取代或未取代的C1-C20烷基、C6-C30芳基、C7-C30烷芳基和C7-C30芳烷基。根据本发明，使用如式 I 所示的化合物作为丙烯聚合的内部电子供体化合物，催化剂具有更高的活性，并且活性延迟的速度较慢。所得到的聚合物不仅分子量分布更广，而且熔融指数和等活度都很高。