1,2-diphenyl-4-(2-methoxyphenyl)cyclopenta-1,3-diene | 934007-98-4

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 二苯乙烯类
• 英文名称: 1,2-diphenyl-4-(2-methoxyphenyl)cyclopenta-1,3-diene
• 英文别名: 1-(3,4-diphenylcyclopenta-1,3-dien-1-yl)-2-methoxybenzene
• CAS: 934007-98-4
• 化学式: C₂₄H₂₀O
• 分子量: 324.422
• InChiKey: OXVHTPLRSBQCEU-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.4
• 重原子数：
  25
• 可旋转键数：
  4
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.08
• 拓扑面积：
  9.2
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  1,2-diphenyl-4-(2-methoxyphenyl)cyclopenta-1,3-diene 、 三氯化铬 在 n-BuLi 作用下， 以 四氢呋喃 、 正己烷 为溶剂， 以50.5%的产率得到η5-1-(2-methoxyphenyl)-3,4-diphenylcyclopentadienyl chromium dichloride dimer
  参考文献：
  名称：

  New o-methoxyphenylcyclopentadienylchromium (III) complexes: Synthesis, structures and catalytic properties for ethylene polymerization

  摘要：

  Two new ligands 1-(2-methoxyphenyl) -3,4-diphenylcyclopentadiene (1) and 1-(2-methoxyphenyl)-2,3,4,5-tetramethylcyclopentadiene (2), as well as their corresponding cyclopentadienylchromium complexes eta(5)-1-(2-methoxyphenyl)-3,4-diphenylcyclopentadienyl chromium dichloride (3) and eta(5)-1-(2-methoxyphenyl)-2,3,4,5-tetramethylcyclopentadienyI chromium dichloride (4) were synthesized and characterized. Molecular structures of 3 and 4 were determined by single-crystal X-ray diffraction. Complexes 3 and 4 were tested as catalyst precursors for ethylene polymerization. When activated with Al(Bu-i)(3) and Ph3C+B(C6F5)(4)(-), complex 3 shows reasonable catalytic activity while 4 exhibits high catalytic activity for ethylene polymerization. The effects of temperature and Al/Cr ratio on the catalytic activity were studied. The molecular weight and melting temperature of the produced polyethylenes were determined. (c) 2006 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jorganchem.2006.11.047
• 作为产物：
  描述：

  3,4-diphenylcyclopent-2-en-1-one 、 苯甲醚 在 正丁基锂 作用下， 以 甲苯 为溶剂， 反应 48.0h， 以53.4%的产率得到1,2-diphenyl-4-(2-methoxyphenyl)cyclopenta-1,3-diene
  参考文献：
  名称：

  New o-methoxyphenylcyclopentadienylchromium (III) complexes: Synthesis, structures and catalytic properties for ethylene polymerization

  摘要：

  Two new ligands 1-(2-methoxyphenyl) -3,4-diphenylcyclopentadiene (1) and 1-(2-methoxyphenyl)-2,3,4,5-tetramethylcyclopentadiene (2), as well as their corresponding cyclopentadienylchromium complexes eta(5)-1-(2-methoxyphenyl)-3,4-diphenylcyclopentadienyl chromium dichloride (3) and eta(5)-1-(2-methoxyphenyl)-2,3,4,5-tetramethylcyclopentadienyI chromium dichloride (4) were synthesized and characterized. Molecular structures of 3 and 4 were determined by single-crystal X-ray diffraction. Complexes 3 and 4 were tested as catalyst precursors for ethylene polymerization. When activated with Al(Bu-i)(3) and Ph3C+B(C6F5)(4)(-), complex 3 shows reasonable catalytic activity while 4 exhibits high catalytic activity for ethylene polymerization. The effects of temperature and Al/Cr ratio on the catalytic activity were studied. The molecular weight and melting temperature of the produced polyethylenes were determined. (c) 2006 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jorganchem.2006.11.047

文献信息

• Aryloxy Alkyl Magnesium versus Dialkyl Magnesium in the Lanthanidocene-Catalyzed Coordinative Chain Transfer Polymerization of Ethylene
  作者：Mikhail E. Minyaev、Pavel D. Komarov、Dmitrii M. Roitershtein、Konstantin A. Lyssenko、Ilya E. Nifant’ev、Lada N. Puntus、Evgenia A. Varaksina、Roman S. Borisov、Viktor P. Dyadchenko、Pavel V. Ivchenko

  DOI：10.1021/acs.organomet.9b00243

  日期：2019.8.12