9-C2H5CO2-9-borabicyclo{3.3.1}nonane | 146681-65-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 金属杂环化合物
• 英文名称: 9-C2H5CO2-9-borabicyclo{3.3.1}nonane
• CAS: 146681-65-4
• 化学式: C₁₁H₁₉BO₂
• 分子量: 194.082
• InChiKey: XRXSMCBQYAZZKR-AOOOYVTPSA-N

物化性质

• 沸点：
  240.6±7.0 °C(Predicted)
• 密度：
  0.97±0.1 g/cm3(Predicted)

反应信息

• 作为产物：
  描述：

  丙酸 、 9-BBN dimer 以 not given 为溶剂， 以>99的产率得到9-C2H5CO2-9-borabicyclo{3.3.1}nonane
  参考文献：
  名称：

  Monomeric and dimeric acyloxydialkylboranes

  摘要：

  The carboxylic acids RCO2H [R = But a, Et b, 3,4,5-(MeO)3C6H2 c, 4-MeOC6H4 d, Ph e, 2,4,6-Me3C6H2 f, 2,6-Cl2C6H3 g, or 3,5-(CF3)2C6H3 h] were treated with triethylborane or with bis(9-borabicyclo[3.3.1]nonane) to give the acyloxydiethylboranes 1a-1h and the 9-acyloxy-9-borabicyclo[3.3.1]nonanes) 2a-2h, respectively. Compounds 1a-1h are largely unassociated in nonpolar solvents (B-11 NMR, IR spectroscopy). As pure liquids, or in the solid state, they form equilibrium mixtures of monomeric and associated (dimeric) molecules (IR spectroscopy). Compounds 2a-2f are completely associated as pure liquids and in the solid state, but only weakly associated in non-polar solvents. Based on the crystal structure of dimeric 2e, it is proposed that, when associated, derivatives of both 1 and 2 form cyclic dimers.

  DOI：

  10.1039/dt9930000047