2,4,6-tri-tert-butyldimethylsilyloxybenzaldehyde | 265975-35-7

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2,4,6-tri-tert-butyldimethylsilyloxybenzaldehyde
• 英文别名: 2,4,6-Tris[[tert-butyl(dimethyl)silyl]oxy]benzaldehyde
• CAS: 265975-35-7
• 化学式: C₂₅H₄₈O₄Si₃
• 分子量: 496.91
• InChiKey: XSBAPXFDYSPFCD-UHFFFAOYSA-N

物化性质

• 沸点：
  461.6±45.0 °C(Predicted)
• 密度：
  0.940±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  8.65
• 重原子数：
  32
• 可旋转键数：
  10
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.72
• 拓扑面积：
  44.8
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  2,4,6-tri-tert-butyldimethylsilyloxybenzaldehyde 以 甲醇 、 四氯化碳 为溶剂， 反应 10.0h， 以98%的产率得到3,4,5-tris((tert-butyldimethylsilyl)oxy)benzoic acid
  参考文献：
  名称：

  Selective Cleavage of tert-Butyldimethylsilylethers ortho to a Carbonyl Group by Ultrasound

  摘要：

  A general method for the selective cleavage of tert-butyldimethylsilylethers ortho to a carbonyl group is established by sonication of a 0.1 M solution of the substrate in 1/1 (v/v) CH3OH/CCl4. Other phenolic tert-butyldimethylsilylethers are unaffected. This reaction performed on flavanoids is completed within 3 h and no special workup is required. Other substrates are also investigated and a mechanism is proposed. (C) 2000 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4020(00)00053-3
• 作为产物：
  描述：

  间苯三酚甲醛 、 叔丁基二甲基氯硅烷 在 咪唑 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 以93%的产率得到2,4,6-tri-tert-butyldimethylsilyloxybenzaldehyde
  参考文献：
  名称：

  Selective Cleavage of tert-Butyldimethylsilylethers ortho to a Carbonyl Group by Ultrasound

  摘要：

  A general method for the selective cleavage of tert-butyldimethylsilylethers ortho to a carbonyl group is established by sonication of a 0.1 M solution of the substrate in 1/1 (v/v) CH3OH/CCl4. Other phenolic tert-butyldimethylsilylethers are unaffected. This reaction performed on flavanoids is completed within 3 h and no special workup is required. Other substrates are also investigated and a mechanism is proposed. (C) 2000 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4020(00)00053-3

文献信息

• Positional chemoselectivity in the Zn(II)-mediated removal of phenol protecting groups
  作者：Lauren M. Fleury、Joseph B. Gianino、Brandon L. Ashfeld

  DOI：10.1016/j.tetlet.2012.07.103

  日期：2012.10

  A protocol was developed for the chemoselective ortho-deprotection of polyphenolic substrates using readily available (ZnX2)-X-II salts. This procedure provides exceptional positional selectivity for the deprotection of phenols that reside adjacent to directing carbonyl functionality in the presence of similar protecting groups at the meta and para positions. Good to excellent yields of the desired free phenols were obtained (<= 96%), and a wide assortment of protecting groups was readily removed under the reaction conditions. (C) 2012 Elsevier Ltd. All rights reserved.
• Selective Cleavage of tert-Butyldimethylsilylethers ortho to a Carbonyl Group by Ultrasound
  作者：Alex H De Groot、Roger A Dommisse、Guy L Lemière

  DOI：10.1016/s0040-4020(00)00053-3

  日期：2000.3

  A general method for the selective cleavage of tert-butyldimethylsilylethers ortho to a carbonyl group is established by sonication of a 0.1 M solution of the substrate in 1/1 (v/v) CH3OH/CCl4. Other phenolic tert-butyldimethylsilylethers are unaffected. This reaction performed on flavanoids is completed within 3 h and no special workup is required. Other substrates are also investigated and a mechanism is proposed. (C) 2000 Elsevier Science Ltd. All rights reserved.