| 680189-49-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡咯
• CAS: 680189-49-5
• 化学式: C₃₁H₃₁NO₁₀
• 分子量: 577.588
• InChiKey: WTPMBKWQXULLLF-UHFFFAOYSA-N

物化性质

• 沸点：
  784.9±60.0 °C(Predicted)
• 密度：
  1.39±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  5.08
• 重原子数：
  42.0
• 可旋转键数：
  8.0
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.26
• 拓扑面积：
  149.07
• 氢给体数：
  4.0
• 氢受体数：
  11.0

反应信息

• 作为反应物：
  描述：

  在 4-二甲氨基吡啶 、 sodium hydride 、 三乙胺 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 4.0h， 生成 lamellarin K triacetate
  参考文献：
  名称：

  Total Synthesis of Natural and Unnatural Lamellarins with Saturated and Unsaturated D-Rings

  摘要：

  Twenty-eight natural and unnatural lamellarins with either a saturated or an unsaturated D-ring were synthesized according to our developed synthetic route. The key step involved the Michael addition/ring closure (Mi-RC) of the benzyldihydroisoquinoline and alpha-nitrocinnamate derivatives, which provided the 2-carboethoxypyrrole intermediates in moderate to good yields (up to 78% yield). Subsequent hydrogenolysis/lactonization furnished lamellarins with a saturated D-ring in excellent yields (up to 93% yield). DDQ oxidation of the saturated lamellarin acetates led directly to the corresponding unsaturated analogues in 54-95% yield. In addition, only two steps in our developed strategy require column chromatography.

  DOI：

  10.1021/jo061810h
• 作为产物：
  描述：

  4-苄氧基-3-甲氧基苯甲醛 在 palladium on activated charcoal lithium aluminium tetrahydride 、 氢气 、 碳酸氢钠 、 sodium carbonate 、 溶剂黄146 、 乙二胺 、 三氯氧磷 作用下， 以 四氢呋喃 、 二氯甲烷 、 水 、 乙酸乙酯 、 N,N-二甲基甲酰胺 、 乙腈 为溶剂， 20.0 ℃ 、517.11 kPa 条件下， 反应 47.0h， 生成
  参考文献：
  名称：

  Total Synthesis of Natural and Unnatural Lamellarins with Saturated and Unsaturated D-Rings

  摘要：

  Twenty-eight natural and unnatural lamellarins with either a saturated or an unsaturated D-ring were synthesized according to our developed synthetic route. The key step involved the Michael addition/ring closure (Mi-RC) of the benzyldihydroisoquinoline and alpha-nitrocinnamate derivatives, which provided the 2-carboethoxypyrrole intermediates in moderate to good yields (up to 78% yield). Subsequent hydrogenolysis/lactonization furnished lamellarins with a saturated D-ring in excellent yields (up to 93% yield). DDQ oxidation of the saturated lamellarin acetates led directly to the corresponding unsaturated analogues in 54-95% yield. In addition, only two steps in our developed strategy require column chromatography.

  DOI：

  10.1021/jo061810h

文献信息

• A Highly Efficient Synthesis of Lamellarins K and L by the Michael Addition/Ring-Closure Reaction of Benzyldihydroisoquinoline Derivatives with Ethoxycarbonyl-β-nitrostyrenes
  作者：Poonsakdi Ploypradith、Chulabhorn Mahidol、Poolsak Sahakitpichan、Siriporn Wongbundit、Somsak Ruchirawat

  DOI：10.1002/anie.200352043

  日期：2004.2.6