(4S,5S)-4,5-bis((R)-1-(benzyloxy)hex-5-enyl)-2,2-dimethyl-1,3-dioxolane | 874910-11-9

• 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: (4S,5S)-4,5-bis((R)-1-(benzyloxy)hex-5-enyl)-2,2-dimethyl-1,3-dioxolane
• CAS: 874910-11-9
• 化学式: C₃₁H₄₂O₄
• 分子量: 478.672
• InChiKey: ROUNFLAHSVBFKQ-XAZDILKDSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  7.39
• 重原子数：
  35.0
• 可旋转键数：
  16.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.48
• 拓扑面积：
  36.92
• 氢给体数：
  0.0
• 氢受体数：
  4.0

反应信息

• 作为反应物：
  描述：

  (4S,5S)-4,5-bis((R)-1-(benzyloxy)hex-5-enyl)-2,2-dimethyl-1,3-dioxolane 在 palladium on activated charcoal 、 palladium dichloride lead(IV) acetate 、 盐酸 、 氢气 、 氧气 、 三氯化铁 、 copper(l) chloride 、 magnesium bromide 作用下， 以 甲醇 、 乙醚 、 二氯甲烷 、 水 、 N,N-二甲基甲酰胺 、 苯 为溶剂， 反应 16.5h， 生成 (1R,5S,7R)-7-乙基-5-甲基-6,8-二氧杂双环[3.2.1]辛烷
  参考文献：
  名称：

  Enantioselective synthesis of α-benzyloxy-ω-alkenals: application to the synthesis of (+)-exo-brevicomin, (+)-iso-exo-brevicomin, and (−)-isolaurepan

  摘要：

  The enantioselective synthesis of alpha-benzyloxy aldehydes containing a terminal alkene was carried out from chiral Pool L-(+)tartaric acid by employing the stereoselective reduction of a 1,4-diketone as the key step. The synthetic utility of these aldehydes was demonstrated in the synthesis of pine beetle pheromones (+)-exo-brevicomin, (+)-iso-exo-brevicomin and a formal synthesis of 2,7cis-disubstituted oxepane (-)-isolaurepan. (c) 2007 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2007.05.014
• 作为产物：
  描述：

  magnesium,pent-1-ene,bromide 在 sodium hydride 、 potassium tri-sec-butyl-borohydride 作用下， 以 四氢呋喃 、 N,N-二甲基甲酰胺 为溶剂， 反应 7.0h， 生成 (4S,5S)-4,5-bis((R)-1-(benzyloxy)hex-5-enyl)-2,2-dimethyl-1,3-dioxolane
  参考文献：
  名称：

  Enantioselective synthesis of α-benzyloxy-ω-alkenals: application to the synthesis of (+)-exo-brevicomin, (+)-iso-exo-brevicomin, and (−)-isolaurepan

  摘要：

  The enantioselective synthesis of alpha-benzyloxy aldehydes containing a terminal alkene was carried out from chiral Pool L-(+)tartaric acid by employing the stereoselective reduction of a 1,4-diketone as the key step. The synthetic utility of these aldehydes was demonstrated in the synthesis of pine beetle pheromones (+)-exo-brevicomin, (+)-iso-exo-brevicomin and a formal synthesis of 2,7cis-disubstituted oxepane (-)-isolaurepan. (c) 2007 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2007.05.014

文献信息

• Asymmetric synthesis of unsaturated α-benzyloxyaldehydes: an enantioselective synthesis of (+)-exo-brevicomin
  作者：Kavirayani R. Prasad、Pazhamalai Anbarasan

  DOI：10.1016/j.tetasy.2005.10.035

  日期：2005.12

  Enantioselective synthesis of alpha-hydroxy aldehydes with an alkene tether was accomplished front L-(+)-tartaric acid, employing stereoselective reduction of a 1,4-diketone with L-selectride as the key step. Synthetic utility of these aldehydes was demonstrated in the synthesis of pine beetle pheromone (+)-exo-brevicomin. (c) 2005 Elsevier Ltd. All rights reserved.