(1R,2R,3S,4S)-2-[tert-butyl(dimethyl)silyl]oxy-5-[tert-butyl(diphenyl)silyl]oxy-1-[(4S)-2,2-dimethyl-1,3-dioxolan-4-yl]-4-methylpentane-1,3-diol | 637020-16-7

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: (1R,2R,3S,4S)-2-[tert-butyl(dimethyl)silyl]oxy-5-[tert-butyl(diphenyl)silyl]oxy-1-[(4S)-2,2-dimethyl-1,3-dioxolan-4-yl]-4-methylpentane-1,3-diol
• CAS: 637020-16-7
• 化学式: C₃₃H₅₄O₆Si₂
• 分子量: 602.959
• InChiKey: PLJNJVCABSNTSF-AGIHYNTBSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.46
• 重原子数：
  41
• 可旋转键数：
  13
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.64
• 拓扑面积：
  77.4
• 氢给体数：
  2
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  (1R,2R,3S,4S)-2-[tert-butyl(dimethyl)silyl]oxy-5-[tert-butyl(diphenyl)silyl]oxy-1-[(4S)-2,2-dimethyl-1,3-dioxolan-4-yl]-4-methylpentane-1,3-diol 在 四丁基氟化铵 、 对甲苯磺酸 作用下， 以 四氢呋喃 、 丙酮 为溶剂， 生成 (2S)-2-[(4S,5R,6R)-5-[tert-butyl(dimethyl)silyl]oxy-6-[(4S)-2,2-dimethyl-1,3-dioxolan-4-yl]-2,2-dimethyl-1,3-dioxan-4-yl]propan-1-ol
  参考文献：
  名称：

  Double Diastereoselection in Aldol Reactions Mediated by Dicyclohexylchloroborane between l-Erythrulose Derivatives and Chiral Aldehydes. The Felkin−Anh versus Cornforth Dichotomy

  摘要：

  Both matched and mismatched diastereoselections have been observed in aldol reactions of the B,B-dicyclohexylboron enolate of a protected L-erythrulose derivative with a range of chiral aldehydes. The stereochemical outcome of reactions with alpha-methyl aldehydes can be adequately explained within the Felkin-Anh paradigm. In the case of alpha-oxygenated aldehydes, however, strict adherence to this model does not allow for a satisfactory account of the observed results. In such cases, the Cornforth model provides a much better explanation.

  DOI：

  10.1021/jo035159j
• 作为产物：
  描述：

  (2S)-3-{[tert-butyl(diphenyl)silyl]oxy}-2-methylpropanal 、 2-[tert-butyl(dimethyl)silyl]oxy-1-[(4S)-2,2-dimethyl-1,3-dioxolan-4-yl]ethanone 在 氯代二环己基硼烷 、 三乙胺 、 锂硼氢 作用下， 以 乙醚 、 四氢呋喃 为溶剂， 反应 7.5h， 以75%的产率得到(1R,2R,3S,4S)-2-[tert-butyl(dimethyl)silyl]oxy-5-[tert-butyl(diphenyl)silyl]oxy-1-[(4S)-2,2-dimethyl-1,3-dioxolan-4-yl]-4-methylpentane-1,3-diol
  参考文献：
  名称：

  Double Diastereoselection in Aldol Reactions Mediated by Dicyclohexylchloroborane between l-Erythrulose Derivatives and Chiral Aldehydes. The Felkin−Anh versus Cornforth Dichotomy

  摘要：

  Both matched and mismatched diastereoselections have been observed in aldol reactions of the B,B-dicyclohexylboron enolate of a protected L-erythrulose derivative with a range of chiral aldehydes. The stereochemical outcome of reactions with alpha-methyl aldehydes can be adequately explained within the Felkin-Anh paradigm. In the case of alpha-oxygenated aldehydes, however, strict adherence to this model does not allow for a satisfactory account of the observed results. In such cases, the Cornforth model provides a much better explanation.

  DOI：

  10.1021/jo035159j