(2S,3R)-2-benzyloxy-3-(tert-butyldimethylsilanyloxy)-3-phenyl-propionaldehyde | 768391-78-2

• 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: (2S,3R)-2-benzyloxy-3-(tert-butyldimethylsilanyloxy)-3-phenyl-propionaldehyde
• 英文别名: (2S,3R)-3-[tert-butyl(dimethyl)silyl]oxy-3-phenyl-2-phenylmethoxypropanal
• CAS: 768391-78-2
• 化学式: C₂₂H₃₀O₃Si
• 分子量: 370.564
• InChiKey: UQHFDEWCIOJYMO-NHCUHLMSSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.53
• 重原子数：
  26
• 可旋转键数：
  9
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.41
• 拓扑面积：
  35.5
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (2S,3R)-2-benzyloxy-3-(tert-butyldimethylsilanyloxy)-3-phenyl-propionaldehyde 在 三乙基硼 、 三氟甲磺酸 、 四丁基氟化铵 、 溶剂黄146 、 N,N-二异丙基乙胺 作用下， 以 四氢呋喃 、 正己烷 、 二氯甲烷 为溶剂， 反应 18.0h， 生成 (2'S,3'S,4S,4'S,5'R)-4-benzyl-3-(2',4'-bisbenzyloxy-3',5'-dihydroxy-5'-phenylpentanoyl)-5,5-dimethyl-oxazolidin-2-one
  参考文献：
  名称：

  Double diastereoselective SuperQuat glycolate aldol reactions: Application to the asymmetric synthesis of polyfunctionalised lactones

  摘要：

  通过与受保护的同手性α,β-二羟基或α,β-γ-三羟基醛和手性羟基噁唑烷酮进行双非对映选择性醛醇反应，然后进行 O-去硅烷化和内酯化反应，可制备出具有最多五个连续立体中心的多官能团内酯，并具有很高的立体控制性。

  DOI：

  10.1039/b411724g
• 作为产物：
  描述：

  (2'S,3'R,4S)-4-benzyl-3-(2'-benzyloxy-3'-hydroxy-3'-phenylpropionyl)-5,5-dimethyloxazolidin-2-one 在 咪唑 、 4-二甲氨基吡啶 、 二异丁基氢化铝 、 potassium carbonate 作用下， 以 甲醇 、 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 18.58h， 生成 (2S,3R)-2-benzyloxy-3-(tert-butyldimethylsilanyloxy)-3-phenyl-propionaldehyde
  参考文献：
  名称：

  N-α-Benzyloxyacetyl derivatives of (S)-4-benzyl-5,5-dimethyloxazolidin-2-one for the asymmetric synthesis of differentially protected α,β-dihydroxyaldehydes

  摘要：

  alpha-Dibenzylamino- and alpha-benzyloxy- derivatives of N-acetyl-(S)-4-benzyl-5,5-dimethyloxazolidin-2-one readily undergo highly stereoselective boron mediated syn-aldol reactions with a range of aromatic and aliphatic aldehydes, generating the syn-aldol products in good to excellent yields as single diastereoisomers after purification. In the alpha-dibenzylamino series, deprotection of the functionalised aldol fragments to the corresponding alpha-amino-beta-hydroxy methyl ester or alpha-amino-beta-hydroxyaldehyde proved problematic, with a range of N- and O-protecting groups giving mixtures of products arising from endocyclic and exocyclic cleavage pathways. However, in the et-benzyloxy series, O-silyl protection of the aldol products, and subsequent DIBAL reduction gives stereoselectively the corresponding N-1'-hydroxyalkyloxazolidin-2-ones, which undergo base promoted fragmentation to the desired highly functionalised and differentially protected alpha,beta-dihydroxyaldehydes in good yields and without loss of stereochemical integrity. (C) 2004 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2004.05.123

文献信息

• N-α-Benzyloxyacetyl derivatives of (S)-4-benzyl-5,5-dimethyloxazolidin-2-one for the asymmetric synthesis of differentially protected α,β-dihydroxyaldehydes
  作者：Stephen G. Davies、Ian A. Hunter、Rebecca L. Nicholson、Paul.M. Roberts、Edward D. Savory、Andrew D. Smith

  DOI：10.1016/j.tet.2004.05.123

  日期：2004.8

  alpha-Dibenzylamino- and alpha-benzyloxy- derivatives of N-acetyl-(S)-4-benzyl-5,5-dimethyloxazolidin-2-one readily undergo highly stereoselective boron mediated syn-aldol reactions with a range of aromatic and aliphatic aldehydes, generating the syn-aldol products in good to excellent yields as single diastereoisomers after purification. In the alpha-dibenzylamino series, deprotection of the functionalised aldol fragments to the corresponding alpha-amino-beta-hydroxy methyl ester or alpha-amino-beta-hydroxyaldehyde proved problematic, with a range of N- and O-protecting groups giving mixtures of products arising from endocyclic and exocyclic cleavage pathways. However, in the et-benzyloxy series, O-silyl protection of the aldol products, and subsequent DIBAL reduction gives stereoselectively the corresponding N-1'-hydroxyalkyloxazolidin-2-ones, which undergo base promoted fragmentation to the desired highly functionalised and differentially protected alpha,beta-dihydroxyaldehydes in good yields and without loss of stereochemical integrity. (C) 2004 Elsevier Ltd. All rights reserved.
• Double diastereoselective SuperQuat glycolate aldol reactions: Application to the asymmetric synthesis of polyfunctionalised lactones
  作者：Stephen G. Davies、Rebecca L. Nicholson、Andrew D. Smith

  DOI：10.1039/b411724g

  日期：——

  Polyfunctionalised lactones with up to five contiguous stereocentres may be prepared with high stereocontrol by a double diastereoselective aldol protocol with protected homochiral α,β-dihydroxy- or α,β-γ-trihydroxyaldehydes and a chiral glycolate oxazolidinone, followed by subsequent O-desilylation and lactonisation.

  通过与受保护的同手性α,β-二羟基或α,β-γ-三羟基醛和手性羟基噁唑烷酮进行双非对映选择性醛醇反应，然后进行 O-去硅烷化和内酯化反应，可制备出具有最多五个连续立体中心的多官能团内酯，并具有很高的立体控制性。