2,2-Dimethyl-propionic acid (1S,4S)-1-((R)-2-benzyloxy-1-methyl-ethyl)-5-(tert-butyl-diphenyl-silanyloxy)-4-methyl-pentyl ester | 214273-36-6

• 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: 2,2-Dimethyl-propionic acid (1S,4S)-1-((R)-2-benzyloxy-1-methyl-ethyl)-5-(tert-butyl-diphenyl-silanyloxy)-4-methyl-pentyl ester
• CAS: 214273-36-6
• 化学式: C₃₇H₅₂O₄Si
• 分子量: 588.903
• InChiKey: USCSJILNARZZHW-LITRCPILSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  7.79
• 重原子数：
  42.0
• 可旋转键数：
  14.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.49
• 拓扑面积：
  44.76
• 氢给体数：
  0.0
• 氢受体数：
  4.0

反应信息

• 作为反应物：
  描述：

  2,2-Dimethyl-propionic acid (1S,4S)-1-((R)-2-benzyloxy-1-methyl-ethyl)-5-(tert-butyl-diphenyl-silanyloxy)-4-methyl-pentyl ester 在 dimethyl sulfide borane 、 chiral oxazaborolidine (S config.) 、 四丁基氟化铵 作用下， 以 四氢呋喃 为溶剂， 生成 2,2-Dimethyl-propionic acid (1S,4S,5R)-1-((R)-2-benzyloxy-1-methyl-ethyl)-5-hydroxy-4-methyl-7-trimethylsilanyl-hept-6-ynyl ester
  参考文献：
  名称：

  Stereoselective reduction of α′-branched α,β-ynones. Application to the synthesis of the Octalactin A ring

  摘要：

  A flexible, efficient route to chiral 3-hydroxy-4-methyl- and 3-hydroxy-4-methoxyalkanoic acids, with high control of the C(3) configuration, has been disclosed, which is based on the borane-mediated reduction of 1-trimethylsilyl-1-alkyn-3-ones (6) in the presence of oxazaborolidine 7 followed by hydroboration of the resulting propargylic alcohols 4 and 5. This strategy has been applied to the synthesis of the Octalactin A ring. (C) 1998 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4039(98)01420-8
• 作为产物：
  描述：

  2,2,2-三氯乙酰胺苄酯 、 2,2-Dimethyl-propionic acid (1S,4S)-5-(tert-butyl-diphenyl-silanyloxy)-1-((R)-2-hydroxy-1-methyl-ethyl)-4-methyl-pentyl ester 在 三氟甲磺酸三甲基硅酯 作用下， 以85%的产率得到2,2-Dimethyl-propionic acid (1S,4S)-1-((R)-2-benzyloxy-1-methyl-ethyl)-5-(tert-butyl-diphenyl-silanyloxy)-4-methyl-pentyl ester
  参考文献：
  名称：

  Stereoselective reduction of α′-branched α,β-ynones. Application to the synthesis of the Octalactin A ring

  摘要：

  A flexible, efficient route to chiral 3-hydroxy-4-methyl- and 3-hydroxy-4-methoxyalkanoic acids, with high control of the C(3) configuration, has been disclosed, which is based on the borane-mediated reduction of 1-trimethylsilyl-1-alkyn-3-ones (6) in the presence of oxazaborolidine 7 followed by hydroboration of the resulting propargylic alcohols 4 and 5. This strategy has been applied to the synthesis of the Octalactin A ring. (C) 1998 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4039(98)01420-8