tert-butyl-[(2R)-2-[(4S,5R)-5-[10-[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]decyl]-2,2-dimethyl-1,3-dioxolan-4-yl]-2-(2-methoxyethoxymethoxy)ethoxy]-dimethylsilane | 185612-33-3

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: tert-butyl-[(2R)-2-[(4S,5R)-5-[10-[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]decyl]-2,2-dimethyl-1,3-dioxolan-4-yl]-2-(2-methoxyethoxymethoxy)ethoxy]-dimethylsilane
• CAS: 185612-33-3
• 化学式: C₃₂H₆₄O₈Si
• 分子量: 604.941
• InChiKey: QCLLLHBAGQKAJR-OLQMUTRHSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  7.59
• 重原子数：
  41
• 可旋转键数：
  22
• 环数：
  2.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  73.8
• 氢给体数：
  0
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  tert-butyl-[(2R)-2-[(4S,5R)-5-[10-[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]decyl]-2,2-dimethyl-1,3-dioxolan-4-yl]-2-(2-methoxyethoxymethoxy)ethoxy]-dimethylsilane 在 N-氯代丁二酰亚胺 、 二甲基硫 、 四丁基氟化铵 、 sodium hydride 、 溶剂黄146 、 三乙胺 作用下， 以 四氢呋喃 为溶剂， 反应 3.58h， 生成 ethyl (E,4R)-4-[(4S,5R)-5-[(11R)-11,12-dihydroxydodecyl]-2,2-dimethyl-1,3-dioxolan-4-yl]-4-(2-methoxyethoxymethoxy)but-2-enoate
  参考文献：
  名称：

  Short Synthesis of (+)-Aspicilin via Asymmetric Hexahydroxylation of a Triene

  摘要：

  Asymmetric synthesis of the 18-membered lichen macrolide (+)-aspicilin has been achieved in 14 steps and 11% overall yield, starting from an achiral hydrocarbon, (3E)-hexadeca-1,3,15-triene. All four stereogenic carbinol centers have been introduced by three Sharpless asymmetric dihydroxylation (AD) reactions, using both AD-mix-beta and AD-mix-alpha to produce the hexol with very high regio- and enantioselectivity (epimeric excess of 88% at position 2, 96% at positions 3 and 4, and 86% at position 15).

  DOI：

  10.1021/jo00084a006
• 作为产物：
  描述：

  (3R,4R,15R)-3,4:15,16-bis(isopropylidenedioxy)hexadec-1-ene 在 4-二甲氨基吡啶 、 AD-mix-α 、 甲基磺酰胺 、 三乙胺 、 N,N-二异丙基乙胺 作用下， 以 二氯甲烷 、 水 、 叔丁醇 为溶剂， 反应 90.0h， 生成 tert-butyl-[(2R)-2-[(4S,5R)-5-[10-[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]decyl]-2,2-dimethyl-1,3-dioxolan-4-yl]-2-(2-methoxyethoxymethoxy)ethoxy]-dimethylsilane
  参考文献：
  名称：

  Short Synthesis of (+)-Aspicilin via Asymmetric Hexahydroxylation of a Triene

  摘要：

  Asymmetric synthesis of the 18-membered lichen macrolide (+)-aspicilin has been achieved in 14 steps and 11% overall yield, starting from an achiral hydrocarbon, (3E)-hexadeca-1,3,15-triene. All four stereogenic carbinol centers have been introduced by three Sharpless asymmetric dihydroxylation (AD) reactions, using both AD-mix-beta and AD-mix-alpha to produce the hexol with very high regio- and enantioselectivity (epimeric excess of 88% at position 2, 96% at positions 3 and 4, and 86% at position 15).

  DOI：

  10.1021/jo00084a006

文献信息

• Short Synthesis of (+)-Aspicilin via Asymmetric Hexahydroxylation of a Triene
  作者：Subhash C. Sinha、Ehud Keinan

  DOI：10.1021/jo00084a006

  日期：1994.3

  Asymmetric synthesis of the 18-membered lichen macrolide (+)-aspicilin has been achieved in 14 steps and 11% overall yield, starting from an achiral hydrocarbon, (3E)-hexadeca-1,3,15-triene. All four stereogenic carbinol centers have been introduced by three Sharpless asymmetric dihydroxylation (AD) reactions, using both AD-mix-beta and AD-mix-alpha to produce the hexol with very high regio- and enantioselectivity (epimeric excess of 88% at position 2, 96% at positions 3 and 4, and 86% at position 15).