(η5-cyclopentadienyl)Co(2,3-Et2C2B4H3-5-I) | 170467-45-5

• 英文名称: (η5-cyclopentadienyl)Co(2,3-Et2C2B4H3-5-I)
• CAS: 170467-45-5
• 化学式: C₁₁H₁₈B₄CoI
• 分子量: 379.406
• InChiKey: CNSGPHRTMVYYII-JMZPPYFQSA-N

计算性质

• 辛醇/水分配系数(LogP)：
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• 重原子数：
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• 可旋转键数：
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• 环数：
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• sp3杂化的碳原子比例：
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• 拓扑面积：
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• 氢给体数：
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• 氢受体数：
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反应信息

• 作为反应物：
  描述：

  (η5-cyclopentadienyl)Co(2,3-Et2C2B4H3-5-I) 、 甲基锂 在 四(三苯基膦)钯 、 zinc(II) chloride 作用下， 以 四氢呋喃 、 乙醚 为溶剂， 以89%的产率得到(η5-cyclopentadienyl)Co(2,3-Et2C2B4H3-5-Me)
  参考文献：
  名称：

  用于多金属碳硼烷组件的Cp功能化积木。富瓦烯和1,3,5-三（环戊二烯基）苯骨架上的多核钴碳硼烷络合物1

  摘要：

  引入有机和无机取代基到η 5 -C 5 H ^ 5（CP）配位体在小cobaltacarboranes CpCo（ET 2 ç 2乙4 ħ 4）和巢-CpCo（ET 2 ç 2乙3 ħ 5）和它们的已探索了衍生物，并与金属促进的C-C偶联一起生成了具有Cp-Cp和Cp-苯键的多簇物质。这种方法补充了基于硼顶点通过金属促进的B-C偶联功能化的替代合成策略，正如我们小组在一系列最新论文中所描述的4,5。并提供了新颖的体系结构以及改进的通往先前已知类型的路线。在这些新的化合物是三夹层三核和六核苯为中心的配合物，其中三个cobaltacarborane单元被锚定到中央1,3,5-（η 5 -C 5 H ^ 4）3 Ç 6 ħ 3烃支架。所述富瓦烯-桥接的双核物种[（2,3--ET 2 c ^ 2乙4 ħ 4）的Co（η 5 -C 5 H ^ 4）] 2（7）和（闭合碳-2,3--ET 2 Ç2乙4

  DOI：

  10.1021/om030503o
• 作为产物：
  描述：

  N-碘代丁二酰亚胺 、 (η5-cyclopentadienyl)Co(2,3-Et2C2B4H4) 以 四氢呋喃 为溶剂， 以95%的产率得到(η5-cyclopentadienyl)Co(2,3-Et2C2B4H3-5-I)
  参考文献：
  名称：

  Organotransition-Metal Metallacarboranes. 40. Regiospecific Halogenation of Transition-Metal Small Carborane Complexes

  摘要：

  Methods for efficient, controlled direct halogenation of C2B3 and C2B4 carborane ligands in neutral nido- and closo-metallacarborane sandwich complexes are described. In an extension of our earlier work in this area, reactions of nido-Cp'Co(2,3-Et(2)C(2)B(3)H(5)) (CP' = Cp*, Cp; Cp* = eta(5)-C(5)Me(5)) With N-halosuccinimides placed Cl, Br, or I substituents on B(4) and/or B(6) but not on the middle boron (B(5)). In contrast, similar treatment of closo-LM-(2,3-Et(2)C(2)B(4)H(4)) species in which LM is Cp'Co, Cp*FeH, (eta(6)-C8H10)Fe, or (eta(6)-MeC(6)H(4)CHMe(2))-Ru gave only B(5)-monohalogen products. However, the triple-decker sandwich complex CpCo(2,3-Et(2)C(2)B(3)H(5))CoCp was readily tribrominated by N-bromosuccinimide. Reactions of Cp'CO(Et(2)C(2)B(4)H(4)) with Cl-2 rapidly formed the respective B(5)-Cl derivatives, which in turn were converted to the B(4,5,6)-Cl-3 species; analogous reactions with Br-2 and I-2 were much slower and gave essentially only B(5)-monosubstituted products. The Cp'Co(Et(2)C(2)B(4)H(3)-5-X) derivatives (X = Cl, Br, I) were decapitated with TMEDA to give the corresponding nido-Cp'Co(Et(2)C(2)B(3)H(4)-5-X) products. The reaction of Cp*(FeH)-H-II(Et(2)C(2)B(4)H(4)) with TMEDA was found to both deprotonate and decapitate the complex, affording respectively Cp*Fe-III-(Et(2)C(2)B(4)H(4)) and the previously unknown nido-Cp*Fe-III-(Et(2)C(2)B(3)H(5)) complex. The new compounds were isolated via column chromatography and obtained in most cases as air-stable colored crystalline solids, characterized via multinuclear NMR, FTIR and mass spectroscopy.

  DOI：

  10.1021/om00010a033