(S)-3-(5-oxo-2,5-dihydrofuran-2-yl)propanal | 880145-57-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二氢呋喃
• 英文名称: (S)-3-(5-oxo-2,5-dihydrofuran-2-yl)propanal
• 英文别名: 3-[(2S)-5-oxo-2H-furan-2-yl]propanal
• CAS: 880145-57-3
• 化学式: C₇H₈O₃
• 分子量: 140.139
• InChiKey: IXFXGYOMHJWFBC-LURJTMIESA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0
• 重原子数：
  10
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.43
• 拓扑面积：
  43.4
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (S)-3-(5-oxo-2,5-dihydrofuran-2-yl)propanal 在 sodium tetrahydroborate 、 cerium(III) chloride heptahydrate 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 反应 2.0h， 以40 mg的产率得到5‐(3‐hydroxypropyl)furan‐2(5H)‐one
  参考文献：
  名称：

  Mukaiyama–Michael Reactions with Acrolein and Methacrolein: A Catalytic Enantioselective Synthesis of the C17–C28 Fragment of Pectenotoxins

  摘要：

  Enantioselective iminium-catalyzed reactions with acrolein and methacrolein are rare. A catalytic enantioselective Mukaiyama-Michael reaction that readily accepts acrolein or methacrolein as substrates, affording the products in good yields and 91-97% ee, is presented. As an application of the methodology, an enantioselective route to the key C17-C28 segment of the pectenotoxin using the Mukaiyama-Michael reaction as the key step is described.

  DOI：

  10.1021/ol203486p
• 作为产物：
  描述：

  2-tert-butyldimethylsilyloxyfuran 、 丙烯醛 在 (2S,5S)-2,5-二苯基吡咯烷 、 水 、 对硝基苯甲酸 作用下， 以 二氯甲烷 为溶剂， 反应 24.0h， 生成 (S)-3-(5-oxo-2,5-dihydrofuran-2-yl)propanal
  参考文献：
  名称：

  Mukaiyama–Michael Reactions with Acrolein and Methacrolein: A Catalytic Enantioselective Synthesis of the C17–C28 Fragment of Pectenotoxins

  摘要：

  Enantioselective iminium-catalyzed reactions with acrolein and methacrolein are rare. A catalytic enantioselective Mukaiyama-Michael reaction that readily accepts acrolein or methacrolein as substrates, affording the products in good yields and 91-97% ee, is presented. As an application of the methodology, an enantioselective route to the key C17-C28 segment of the pectenotoxin using the Mukaiyama-Michael reaction as the key step is described.

  DOI：

  10.1021/ol203486p

文献信息

• Mukaiyama-Michael Reactions with<i>trans</i>-2,5-Diarylpyrrolidine Catalysts: Enantioselectivity Arises from Attractive Noncovalent Interactions, Not from Steric Hindrance
  作者：Eeva K. Kemppainen、Gokarneswar Sahoo、Antti Piisola、Andrea Hamza、Bianka Kótai、Imre Pápai、Petri M. Pihko

  DOI：10.1002/chem.201304240

  日期：2014.5.12

  the predicted and observed stereoselectivities. The analysis of intermolecular forces reveals that the enantioselectivity is mostly due to stabilizing noncovalent interactions between the reacting partners, not due to steric hindrance. The role of attractive noncovalent interactions in enantioselective catalysis may be underappreciated.

  反式2,5-二苯基吡咯烷催化的对映选择性Mukaiyama-Michael反应的范围已扩大到包括α-和β-取代的Enals。但是，由于催化剂的空间位阻不是很强，因此观察到的对映选择性的合理化还远远不够。进行DFT计算以合理化观察到的立体选择性。作为C过渡态定位亚胺中间体和甲硅烷氧基呋喃之间的C键形成，并用它们的相对能量估算立体选择性数据。我们在预测和观察到的立体选择性之间发现了极好的一致性。分子间力的分析表明，对映选择性主要是由于稳定了反应伙伴之间的非共价相互作用，而不是由于空间位阻。有吸引力的非共价相互作用在对映选择性催化中的作用可能未被充分认识。
• Mukaiyama–Michael Reactions with Acrolein and Methacrolein: A Catalytic Enantioselective Synthesis of the C17–C28 Fragment of Pectenotoxins
  作者：Eeva K. Kemppainen、Gokarneswar Sahoo、Arto Valkonen、Petri M. Pihko

  DOI：10.1021/ol203486p

  日期：2012.2.17

  Enantioselective iminium-catalyzed reactions with acrolein and methacrolein are rare. A catalytic enantioselective Mukaiyama-Michael reaction that readily accepts acrolein or methacrolein as substrates, affording the products in good yields and 91-97% ee, is presented. As an application of the methodology, an enantioselective route to the key C17-C28 segment of the pectenotoxin using the Mukaiyama-Michael reaction as the key step is described.