[(3aR,4S,6S,7R,7aS)-4-(iodomethyl)-6-methoxy-2,2-dimethyl-4,6,7,7a-tetrahydro-3aH-[1,3]dioxolo[4,5-c]pyran-7-yl]oxy-tert-butyl-diphenylsilane | 1393478-29-9

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: [(3aR,4S,6S,7R,7aS)-4-(iodomethyl)-6-methoxy-2,2-dimethyl-4,6,7,7a-tetrahydro-3aH-[1,3]dioxolo[4,5-c]pyran-7-yl]oxy-tert-butyl-diphenylsilane
• CAS: 1393478-29-9
• 化学式: C₂₆H₃₅IO₅Si
• 分子量: 582.551
• InChiKey: FBPLNJXPCLFGHY-BAHGYDIPSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.26
• 重原子数：
  33
• 可旋转键数：
  7
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.54
• 拓扑面积：
  46.2
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  [(3aR,4S,6S,7R,7aS)-4-(iodomethyl)-6-methoxy-2,2-dimethyl-4,6,7,7a-tetrahydro-3aH-[1,3]dioxolo[4,5-c]pyran-7-yl]oxy-tert-butyl-diphenylsilane 在 RuCl2(1,3-dimesityl-imidazolidin-2-yl)(PCy3)(=CHPh) 、 4-二甲氨基吡啶 、 vitamin B12 、 四丁基氟化铵 、 氯化铵 、 三乙胺 、 锌 作用下， 以 四氢呋喃 、 甲醇 、 乙醇 、 二氯甲烷 为溶剂， 反应 60.58h， 生成 (3aS,5aS,8aS,8bS)-6-tert-butyl-2,2-dimethyl-3a,5a,8a,8b-tetrahydro-[1,3]dioxolo[4,5-g][1,3]benzoxazol-7-one
  参考文献：
  名称：

  A Chiron Approach to Aminocytitols by Petasis-Borono-Mannich Reaction: Formal Synthesis of (+)-Conduramine E and (−)-Conduramine E

  摘要：

  A chiron approach to a stereoselective route for the synthesis of aminocytitols from carbohydrates is described. The formal synthesis of (+)-conduramine E and (-)-conduramine E was achieved by utilizing this strategy. The key features of the synthetic strategy include one-pot three-component Petasis-Borono-Mannich reaction to introduce the syn-beta-amino alcohol functionality of conduramine E and ring-closing metathesis to construct its carbocyclic core. The present synthetic approach paves the way for stereoselective synthesis of several conduramines starting from carbohydrates.

  DOI：

  10.1021/jo300804d
• 作为产物：
  描述：

  Α-D-乳酸吡喃糖苷甲酯 在 咪唑 、 碘 、 三苯基膦 作用下， 以 二氯甲烷 、 甲苯 为溶剂， 反应 13.0h， 生成 [(3aR,4S,6S,7R,7aS)-4-(iodomethyl)-6-methoxy-2,2-dimethyl-4,6,7,7a-tetrahydro-3aH-[1,3]dioxolo[4,5-c]pyran-7-yl]oxy-tert-butyl-diphenylsilane
  参考文献：
  名称：

  A Chiron Approach to Aminocytitols by Petasis-Borono-Mannich Reaction: Formal Synthesis of (+)-Conduramine E and (−)-Conduramine E

  摘要：

  A chiron approach to a stereoselective route for the synthesis of aminocytitols from carbohydrates is described. The formal synthesis of (+)-conduramine E and (-)-conduramine E was achieved by utilizing this strategy. The key features of the synthetic strategy include one-pot three-component Petasis-Borono-Mannich reaction to introduce the syn-beta-amino alcohol functionality of conduramine E and ring-closing metathesis to construct its carbocyclic core. The present synthetic approach paves the way for stereoselective synthesis of several conduramines starting from carbohydrates.

  DOI：

  10.1021/jo300804d

文献信息

• Domino Reaction of Iodoglycosides: Synthesis of Carbohydrate-Based Nitroalkenes
  作者：Raquel G. Soengas、Artur M. S. Silva

  DOI：10.1002/ejoc.201300362

  日期：2013.8

  Herein we describe a tandem fragmentation/Henry reaction of iodoglycosides, which involves formation of a carbon–carbon double bond and a carbon–carbon single bond. If the fragmentation of methyl 5-iodo-D-ribofuranoside is mediated by zinc/catalytic indium in the presence of bromonitromethane, a separable mixture of a 1-nitro-5-hexene and a 1-bromo-1-nitro-5-hexene is obtained in moderate yields with

  在此，我们描述了碘糖苷的串联断裂/亨利反应，该反应涉及碳-碳双键和碳-碳单键的形成。如果甲基 5-碘-D-呋喃核糖苷的裂解是在溴硝基甲烷存在下由锌/催化铟介导的，则为 1-硝基-5-己烯和 1-溴-1-硝基-5-己烯的可分离混合物以中等产率获得，具有良好的非对映选择性。然而，如果反应在硝基甲烷存在下由 nBuLi 介导，则相应的 1-硝基-5-己烯作为唯一产物以优异的产率和立体选择性在一锅合成方案中获得。