4-(benzyloxy)-2-(4'-methylbenzenesulfonyl)-3-oxo-2-azabicyclo<2.2.2>oct-7-ene-5-endo-carboxaldehyde | 141667-40-5

• 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: 4-(benzyloxy)-2-(4'-methylbenzenesulfonyl)-3-oxo-2-azabicyclo<2.2.2>oct-7-ene-5-endo-carboxaldehyde
• 英文别名: (1R,4S,5R)-2-(4-methylphenyl)sulfonyl-3-oxo-4-phenylmethoxy-2-azabicyclo[2.2.2]oct-7-ene-5-carbaldehyde
• CAS: 141667-40-5
• 化学式: C₂₂H₂₁NO₅S
• 分子量: 411.478
• InChiKey: BNNMOBMRDSFBQQ-IPJJNNNSSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  29
• 可旋转键数：
  6
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.27
• 拓扑面积：
  89.1
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  3-(benzyloxy)pyridin-2-ol 在 lithium hexamethyldisilazane 作用下， 以 二氯甲烷 为溶剂， 反应 120.0h， 生成 4-(benzyloxy)-2-(4'-methylbenzenesulfonyl)-3-oxo-2-azabicyclo<2.2.2>oct-7-ene-5-endo-carboxaldehyde
  参考文献：
  名称：

  Diels-Alder cycloadditions using nucleophilic 2-pyridones. Regiocontrolled and stereocontrolled synthesis of unsaturated, bridged, bicyclic lactams

  摘要：

  Captodative 3-oxy-and 3-(tolylthio)-1-tosyl-2-pyridones 1a-1d are shown to be reactive as nucleophilic dienes undergoing 2 + 4-cycloadditions with various electrophilic alkenes under sufficiently mild thermal conditions (90-100-degrees-C) that the initial bicylic lactam adducts can be isolated on gram scale in fair to very good yields (23-83%) without loss of an isocyanate from the heteroatom bridge. These bicyclic adducts are formed with complete regiocontrol and stereocontrol. For pyridone sulfide 1d, these Diels-Alder cycloadditions are the first examples of a captodative unsaturated sulfide acting as an enophile. NMR data (C-13) are presented correlating the electron density in the pyridone diene systems with their Diels-Alder reactivity, and some transformations of the bicyclic lactam adducts are shown to illustrate the value and versatility of these richly functionalized synthetic intermediates.

  DOI：

  10.1021/jo00041a010

文献信息

• Diels-Alder cycloadditions using nucleophilic 2-pyridones. Regiocontrolled and stereocontrolled synthesis of unsaturated, bridged, bicyclic lactams
  作者：Gary H. Posner、Victoria Vinader、Kamyar Afarinkia

  DOI：10.1021/jo00041a010

  日期：1992.7

  Captodative 3-oxy-and 3-(tolylthio)-1-tosyl-2-pyridones 1a-1d are shown to be reactive as nucleophilic dienes undergoing 2 + 4-cycloadditions with various electrophilic alkenes under sufficiently mild thermal conditions (90-100-degrees-C) that the initial bicylic lactam adducts can be isolated on gram scale in fair to very good yields (23-83%) without loss of an isocyanate from the heteroatom bridge. These bicyclic adducts are formed with complete regiocontrol and stereocontrol. For pyridone sulfide 1d, these Diels-Alder cycloadditions are the first examples of a captodative unsaturated sulfide acting as an enophile. NMR data (C-13) are presented correlating the electron density in the pyridone diene systems with their Diels-Alder reactivity, and some transformations of the bicyclic lactam adducts are shown to illustrate the value and versatility of these richly functionalized synthetic intermediates.