(S)-3-O-(2-methoxyethoxymethyl)-1,3-butanediol | 342640-92-0

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: (S)-3-O-(2-methoxyethoxymethyl)-1,3-butanediol
• 英文别名: (3S)-3-(2-methoxyethoxymethoxy)butan-1-ol
• CAS: 342640-92-0
• 化学式: C₈H₁₈O₄
• 分子量: 178.229
• InChiKey: OKQKAVFLINWIAD-QMMMGPOBSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0
• 重原子数：
  12
• 可旋转键数：
  8
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  47.9
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  (S)-3-O-(2-methoxyethoxymethyl)-1,3-butanediol 在 4 A molecular sieve 、 pyridinium chlorochromate 作用下， 以 二氯甲烷 为溶剂， 反应 5.33h， 生成 methyl (E,S)-8-O-(2-methoxyethoxymethyl)-4-oxo-5-nonenoate
  参考文献：
  名称：

  Lipase mediated resolution of 1,3-butanediol derivatives: chiral building blocks for pheromone enantiosynthesis. Part 3

  摘要：

  (R,S)-1,3-butanediol 5 was kinetically resolved by enzymatic acetylation with vinyl acetate under the presence of Chirazyme (TM) L-2, c-f, yielding (S)-1-O-acetyl-1,3-hydroxybutane 6 and (R)-1,3-di-O-acetyl-1,3-butanediol 7 with enantiomeric excesses of 91%, (E=67.3). Compounds 6 and 7 were easily transformed into the corresponding (S)-3-O-(2-methoxyethoxymethyl)-3-hydroxybutanal 10 and (R)-3-benzyloxybutanal 19, through a protection-deprotection and functional group interchange methodology. Subsequent reaction of 10 and 19 with 3-(methoxycarbonlypropionyl-methylene)triphenylphosphorane afforded methyl (E,S)-8-O-(2-methoxyethoxymethyl)-4-oxo-5-nonenoate 12 and (E,R)-8-benzyl-oxy-4-oxo-5-nonenoate 20. The alkenes 19 and 20 were then catalytically hydrogenated to the corresponding saturated eaters 13 and 21. Treatment of 13 and 21 with 1,2-ethanedithiol/F3B . OEt2 afforded dithioketals 14 and 22, which were respectively reduced to (S)-1,8-dihydroxy-4-nonanone ethylidenedithioketal 15 and (R)-8-O-benzyl-1,8-dihydroxy-4-nonanone ethylidenedithioketal 23. Finally, deprotection of 15 by catalytic hydrogenation under acidic conditions gave the expected (5S,7S)-(-)-7-methy1-1,6-dioxaspiro[4.5]decane 1. The (5R,7R)-(+)-1 enantiomer was analogously prepared fi om 23. Both compounds were formed by this procedure with an e.e. of 91%. (C) 2001 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0957-4166(01)00038-6
• 作为产物：
  描述：

  (S)-1-O-acetyl-3-O-(2-methoxyethoxymethyl)-1,3-butanediol 在 sodium methylate 作用下， 以 甲醇 为溶剂， 反应 3.0h， 以90%的产率得到(S)-3-O-(2-methoxyethoxymethyl)-1,3-butanediol
  参考文献：
  名称：

  Lipase mediated resolution of 1,3-butanediol derivatives: chiral building blocks for pheromone enantiosynthesis. Part 3

  摘要：

  (R,S)-1,3-butanediol 5 was kinetically resolved by enzymatic acetylation with vinyl acetate under the presence of Chirazyme (TM) L-2, c-f, yielding (S)-1-O-acetyl-1,3-hydroxybutane 6 and (R)-1,3-di-O-acetyl-1,3-butanediol 7 with enantiomeric excesses of 91%, (E=67.3). Compounds 6 and 7 were easily transformed into the corresponding (S)-3-O-(2-methoxyethoxymethyl)-3-hydroxybutanal 10 and (R)-3-benzyloxybutanal 19, through a protection-deprotection and functional group interchange methodology. Subsequent reaction of 10 and 19 with 3-(methoxycarbonlypropionyl-methylene)triphenylphosphorane afforded methyl (E,S)-8-O-(2-methoxyethoxymethyl)-4-oxo-5-nonenoate 12 and (E,R)-8-benzyl-oxy-4-oxo-5-nonenoate 20. The alkenes 19 and 20 were then catalytically hydrogenated to the corresponding saturated eaters 13 and 21. Treatment of 13 and 21 with 1,2-ethanedithiol/F3B . OEt2 afforded dithioketals 14 and 22, which were respectively reduced to (S)-1,8-dihydroxy-4-nonanone ethylidenedithioketal 15 and (R)-8-O-benzyl-1,8-dihydroxy-4-nonanone ethylidenedithioketal 23. Finally, deprotection of 15 by catalytic hydrogenation under acidic conditions gave the expected (5S,7S)-(-)-7-methy1-1,6-dioxaspiro[4.5]decane 1. The (5R,7R)-(+)-1 enantiomer was analogously prepared fi om 23. Both compounds were formed by this procedure with an e.e. of 91%. (C) 2001 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0957-4166(01)00038-6

文献信息

• Lipase mediated resolution of 1,3-butanediol derivatives: chiral building blocks for pheromone enantiosynthesis. Part 3
  作者：Isidoro Izquierdo、Marı́a T. Plaza、Miguel Rodrı́guez、Juan A. Tamayo、Alicia Martos

  DOI：10.1016/s0957-4166(01)00038-6

  日期：2001.2

  (R,S)-1,3-butanediol 5 was kinetically resolved by enzymatic acetylation with vinyl acetate under the presence of Chirazyme (TM) L-2, c-f, yielding (S)-1-O-acetyl-1,3-hydroxybutane 6 and (R)-1,3-di-O-acetyl-1,3-butanediol 7 with enantiomeric excesses of 91%, (E=67.3). Compounds 6 and 7 were easily transformed into the corresponding (S)-3-O-(2-methoxyethoxymethyl)-3-hydroxybutanal 10 and (R)-3-benzyloxybutanal 19, through a protection-deprotection and functional group interchange methodology. Subsequent reaction of 10 and 19 with 3-(methoxycarbonlypropionyl-methylene)triphenylphosphorane afforded methyl (E,S)-8-O-(2-methoxyethoxymethyl)-4-oxo-5-nonenoate 12 and (E,R)-8-benzyl-oxy-4-oxo-5-nonenoate 20. The alkenes 19 and 20 were then catalytically hydrogenated to the corresponding saturated eaters 13 and 21. Treatment of 13 and 21 with 1,2-ethanedithiol/F3B . OEt2 afforded dithioketals 14 and 22, which were respectively reduced to (S)-1,8-dihydroxy-4-nonanone ethylidenedithioketal 15 and (R)-8-O-benzyl-1,8-dihydroxy-4-nonanone ethylidenedithioketal 23. Finally, deprotection of 15 by catalytic hydrogenation under acidic conditions gave the expected (5S,7S)-(-)-7-methy1-1,6-dioxaspiro[4.5]decane 1. The (5R,7R)-(+)-1 enantiomer was analogously prepared fi om 23. Both compounds were formed by this procedure with an e.e. of 91%. (C) 2001 Elsevier Science Ltd. All rights reserved.