α-ethynyl-ω-[(2-ethynyl-3,4-bis(trimethylsilyl)cyclobutadiene-1-yl)(cyclopentadienyl)cobalt]-[1,2-(3,4-bis(trimethylsilyl)(cyclobutadieneylene)(cyclopentadienyl)cobalt)](butadiyn-1,4-diyl) | 229176-48-1

• 英文名称: α-ethynyl-ω-[(2-ethynyl-3,4-bis(trimethylsilyl)cyclobutadiene-1-yl)(cyclopentadienyl)cobalt]-[1,2-(3,4-bis(trimethylsilyl)(cyclobutadieneylene)(cyclopentadienyl)cobalt)](butadiyn-1,4-diyl)
• CAS: 229176-48-1
• 化学式: C₃₈H₄₈Co₂Si₄
• 分子量: 735.128
• InChiKey: BEWWCAOTXSAVOX-UHFFFAOYSA-N

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：

  在 K₂CO₃ 、 dimethyl-(1-diazo-2-oxopropyl)phosphonate 作用下， 以 甲醇 为溶剂， 以76%的产率得到α-ethynyl-ω-[(2-ethynyl-3,4-bis(trimethylsilyl)cyclobutadiene-1-yl)(cyclopentadienyl)cobalt]-[1,2-(3,4-bis(trimethylsilyl)(cyclobutadieneylene)(cyclopentadienyl)cobalt)](butadiyn-1,4-diyl)
  参考文献：
  名称：

  An alternative synthesis of Vollhardt’s [1,2-diethynyl-3,4-bis(trimethylsilyl)cyclobutadiene]cyclopentadienylcobalt and selective formation of its dimer

  摘要：

  Coupling of bistrimethylsilylpropargylic alcohol over CpCo(CO)(2) to give the respective ortho and para bishydroxymethyl substituted cyclobutadiene complexes is reported. The trimethylsilyl groups have a stereo directing effect furnishing an 8:1 ratio of ortho/para. Transformation of the hydroxymethyl groups leads to the formation of the title compound [1,2-diethynyl-3,4-bis(trimethylsilyl)cyclobutadiene]cyclopentadienylcobalt. (C) 1999 Elsevier Science S.A. All rights reserved.

  DOI：

  10.1016/s0022-328x(98)01116-4