2-methyl-3H-4,5-dimethyl-6-(2-methyl-2,3,4,5-tetrahydroquinolin-8-yl)-4H-cyclopentathiophene titanium dichloride | 1256451-47-4

• 英文名称: 2-methyl-3H-4,5-dimethyl-6-(2-methyl-2,3,4,5-tetrahydroquinolin-8-yl)-4H-cyclopentathiophene titanium dichloride
• CAS: 1256451-47-4
• 化学式: C₂₁H₂₃Cl₂NSTi
• 分子量: 440.272
• InChiKey: AVXLVZBZFRSKCK-UHFFFAOYSA-L

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 重原子数：
  None
• 可旋转键数：
  None
• 环数：
  None
• sp3杂化的碳原子比例：
  None
• 拓扑面积：
  None
• 氢给体数：
  None
• 氢受体数：
  None

反应信息

• 作为产物：
  描述：

  2-methyl-8-(2,3,4,5-tetramethyl-4H-cyclopenta[b]thiophen-6-yl)-1,2,3,4-tetrahydroquinoline 在 甲基锂 、 bis(dimethylamido)titanium(IV) dichloride 、 二氯二甲基硅烷 作用下， 以 乙醚 、 甲苯 为溶剂， 反应 75.0h， 以75%的产率得到2-methyl-3H-4,5-dimethyl-6-(2-methyl-2,3,4,5-tetrahydroquinolin-8-yl)-4H-cyclopentathiophene titanium dichloride
  参考文献：
  名称：

  GROUP 4 METAL COMPOUND CONTAINING THIOPHENE-FUSED CYCLOPENTADIENYL LIGAND DERIVED FROM TETRAQUINOLINE DERIVATIVE AND OLEFIN POLYMERIZATION USING THE SAME

  摘要：

  本发明涉及一种源自四氢喹啉衍生物的新型配体，以及使用该配体制备的过渡金属化合物，其中一个酰胺配体连接到邻菲啰啉配体以形成一个紧凑的环，并且连接到邻菲啰啉配体的一个五元环π-配体与一个杂环噻吩配体融合。与未与杂环噻吩配体融合的催化剂相比，本发明的过渡金属化合物在与辅助催化剂激活时具有更高的烯烃聚合催化活性，并提供具有更高分子量的聚合物。

  公开号：

  US20130203949A1

文献信息

• Preparation of half-metallocenes of thiophene-fused and tetrahydroquinoline-linked cyclopentadienyl ligands for ethylene/α-olefin copolymerization
  作者：Ji Hae Park、Seung Hyun Do、Anish Cyriac、Hoseop Yun、Bun Yeoul Lee

  DOI：10.1039/c0dt00637h

  日期：——

  Directed ortho-lithiation of the lithium carbamates generated from tetrahydroquinoline or tetrahydroquinaldine enables one-step preparation of thiophene-fused and tetrahydroquinoline-linked cyclopentadienes [2-R1-3-R2-4,5-dimethyl-6-(2-R3-2,3,4,5-tetrahydroquinolin-8-yl)-4H-cyclopenta[b]thiophene (R1, R2, R3 = H or methyl)], from which titanium(IV) and zirconium(IV) complexes are prepared. The molecular structures of Me2Ti-complexes (12, R1 = R2 = Me, R3 = H; 14, R1 = R2 = R3 = Me) and Cl2Zr-complex (17, R1 = R2 = Me, R3 = H) are determined by X-ray crystallography. The Me2Ti-complexes, 14 and 15 (R1 = R3 = Me, R2 = H) show excellent activities (62 and 54 × 106 g/molTi·h) in ethylene/1-octene copolymerization, even when activated with small amount of MAO (Al/Ti = 1000).

  来源于四氢喹啉或四氢奎啉胺的锂氨基甲酸盐的定向邻位锂化反应实现了硫烯烷基和四氢喹啉连接的环戊二烯的单步合成 [2-R1-3-R2-4,5-二甲基-6-(2-R3-2,3,4,5-四氢喹啉-8-基)-4H-环戊[b]硫烯 (R1, R2, R3 = H 或甲基)]。从中可以制备钛(IV)和锆(IV)络合物。通过X射线晶体学确定了Me2Ti络合物（12，R1 = R2 = Me，R3 = H；14，R1 = R2 = R3 = Me）和Cl2Zr络合物（17，R1 = R2 = Me，R3 = H）的分子结构。Me2Ti络合物14和15（R1 = R3 = Me，R2 = H）在乙烯/1-辛烯共聚合中表现出优异的活性（62和54 × 10^6 g/molTi·h），即使在仅用少量MAO激活（Al/Ti = 1000）的情况下也如此。
• SUPPORTED CATALYST FOR PROPYLENE POLYMERIZATION AND METHOD FOR PRODUCING POLYPROPYLENE RESIN USING SAME
  申请人：LOTTE CHEMICAL CORPORATION

  公开号：US20220010044A1

  公开（公告）日：2022-01-13

  The present invention relates to a supported catalyst for propylene polymerization in which a first transition metal compound contributing to the production of crystalline polypropylene and a second transition metal compound contributing to the production of rubbery polypropylene are co-supported, and a method for producing a polypropylene resin using same. By using the supported catalyst, according to the present invention, it is possible to produce, by a single step of propylene polymerization, a polypropylene resin in which crystalline polypropylene and rubbery polypropylene are simultaneously formed.

  本发明涉及一种支撑催化剂，用于丙烯聚合，其中第一过渡金属化合物有助于生产结晶聚丙烯，第二过渡金属化合物有助于生产橡胶状聚丙烯，两种化合物共同支撑，并使用该支撑催化剂制备聚丙烯树脂的方法。通过使用本发明的支撑催化剂，可以通过单步丙烯聚合来同时形成结晶聚丙烯和橡胶状聚丙烯的聚丙烯树脂。