(η5-pentamethylcyclopentadienyl)-(η5-1,3-dit-butyl-2,4,5-trimethyl-2,3-dihydro-1,3-diborolyl)rhodium | 342385-72-2

• 英文名称: (η5-pentamethylcyclopentadienyl)-(η5-1,3-dit-butyl-2,4,5-trimethyl-2,3-dihydro-1,3-diborolyl)rhodium
• CAS: 342385-72-2
• 化学式: C₂₄H₄₃B₂Rh
• 分子量: 456.133
• InChiKey: QRCPIUJUJCBHCE-UHFFFAOYSA-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

• 作为产物：
  描述：

  chlorobis(ethylene)rhodium(I) dimer 、 lithiumpentamethylcyclopentadiene 、 1,3-dit-butyl-2,4,5-trimethyl-2,3-dihydro-1,3-diborole 以 四氢呋喃 为溶剂， 以51%的产率得到(η5-pentamethylcyclopentadienyl)-(η5-1,3-dit-butyl-2,4,5-trimethyl-2,3-dihydro-1,3-diborolyl)rhodium
  参考文献：
  名称：

  Syntheses and ligand properties of 1,3-dit-butyl-2,3-dihydro-1,3-diboroles. Rhodium-(η5-2,3-dihydro-1,3-diborole) and rhodium-(η5-2,3-dihydro-1,3-diborolyl) complexes

  摘要：

  Of the new 1,3-dit-butyl-2,3-dihydro-1,3-diboroles (la,b), the pentaalkyl derivative Ib reacts with [(C2H4),RhCl](2) to give the Cl-bridged dimer 2b. The single crystal structure analysis of 2b reveals that the hydrogen atoms H2 and H22 in the two-positions are located on the opposite side of the dihydrodiborole rings than the rhodium atoms, with formation of 3c/2e C-H-->B bonds. The chlorine bridges in 2b are cleaved with MeLi in toluene to give the arenediborolylrhodium sandwich 3b. The tetraalkyl-1,3-diborole (la) reads with MeLi or KH and then [(C2H4)(2)RhCl](2) in toluene to give the sandwich 3a. Treatment of 2b with MeLi in the presence of the 1,3-diborole (Ib) provides the 16 VE 1,3-diborolyl-1,3-diborolrhodium complex 4b. With CpNa 2b forms the 1,3-diborole sandwich 6b, which has a 3c/2e C-H-->B bond, whereas with Cp*Li the hydride complex 7b with a Rh-H bond is obtained. (C) 2001 Elsevier science B.V. All rights reserved.

  DOI：

  10.1016/s0022-328x(00)00516-7