benzyl (2R)-2-(2-oxopentyl)piperidine-1-carboxylate | 212556-93-9

• 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: benzyl (2R)-2-(2-oxopentyl)piperidine-1-carboxylate
• CAS: 212556-93-9
• 化学式: C₁₈H₂₅NO₃
• 分子量: 303.401
• InChiKey: XSQCAUBZSAAXAK-MRXNPFEDSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  22
• 可旋转键数：
  7
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.56
• 拓扑面积：
  46.6
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  benzyl (2R)-2-(2-oxopentyl)piperidine-1-carboxylate 在 lithium tri-t-butoxyaluminum hydride 作用下， 以 四氢呋喃 为溶剂， 以73%的产率得到benzyl (2R)-2-((2R)-2-hydroxypentyl)piperidine-1-carboxylate
  参考文献：
  名称：

  烯基胺的加氢甲酰化。哌啶，喹喔啉和相关生物碱的简便方法

  摘要：

  N-保护的烯丙基或高烯丙基胺的线性加氢甲酰化（环氢羰基化：CHC），然后进行还原性胺化，是通往氮杂杂环便利途径的两个关键步骤。

  DOI：

  10.1021/jo101776y
• 作为产物：
  描述：

  N-benzyloxycarbonyl-5-hexenylamine 在 (6-甲氧基-4-喹啉基)-(5-乙烯基奎宁环-2-基)甲胺 、 Hoveyda-Grubbs catalyst second generation 、 五氟丙酸 作用下， 以 二氯甲烷 、 氯仿 为溶剂， 反应 27.0h， 生成 benzyl (2R)-2-(2-oxopentyl)piperidine-1-carboxylate
  参考文献：
  名称：

  Microwave-Assisted Organocatalytic Enantioselective Intramolecular aza-Michael Reaction with α,β-Unsaturated Ketones

  摘要：

  AbstractAn organocatalytic enantioselective intramolecular aza‐Michael reaction of carbamates bearing conjugated ketones as Michael acceptors is described. By using 9‐amino‐9‐deoxy‐epi‐hydroquinine as the catalyst and pentafluoropropionic acid as a co‐catalyst, a series of piperidines, pyrrolidines, and the corresponding benzo‐fused derivatives (indolines, isoindolines, tetrahydroquinolines, and tetrahydroisoquinolines) can be obtained in excellent yields and enantioselectivities. In addition, the use of microwave irradiation at 60 °C improves the efficiency of the process giving rise to the final products with comparable yields and enantiomeric excesses. Some mechanistic insights are also considered.

  DOI：

  10.1002/chem.201101292

文献信息

• Hydroformylation of Alkenylamines. Concise Approaches toward Piperidines, Quinolizidines, and Related Alkaloids
  作者：Etienne Airiau、Nicolas Girard、Marianna Pizzeti、Jessica Salvadori、Maurizio Taddei、André Mann

  DOI：10.1021/jo101776y

  日期：2010.12.17

  Linear hydroformylation of N-protected allyl- or homoallylamines (cyclohydrocarbonylation: CHC), followed by a reductive amination constitute the two key steps toward convenient routes to aza-heterocycles.

  N-保护的烯丙基或高烯丙基胺的线性加氢甲酰化（环氢羰基化：CHC），然后进行还原性胺化，是通往氮杂杂环便利途径的两个关键步骤。
• Microwave-Assisted Organocatalytic Enantioselective Intramolecular aza-Michael Reaction with α,β-Unsaturated Ketones
  作者：Santos Fustero、Carlos del Pozo、Cristina Mulet、Rubén Lazaro、María Sánchez-Roselló

  DOI：10.1002/chem.201101292

  日期：2011.12.9

  AbstractAn organocatalytic enantioselective intramolecular aza‐Michael reaction of carbamates bearing conjugated ketones as Michael acceptors is described. By using 9‐amino‐9‐deoxy‐epi‐hydroquinine as the catalyst and pentafluoropropionic acid as a co‐catalyst, a series of piperidines, pyrrolidines, and the corresponding benzo‐fused derivatives (indolines, isoindolines, tetrahydroquinolines, and tetrahydroisoquinolines) can be obtained in excellent yields and enantioselectivities. In addition, the use of microwave irradiation at 60 °C improves the efficiency of the process giving rise to the final products with comparable yields and enantiomeric excesses. Some mechanistic insights are also considered.