N-benzyl-N-(pent-4-en-1-yl)acetamide | 1307910-91-3

• 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: N-benzyl-N-(pent-4-en-1-yl)acetamide
• CAS: 1307910-91-3
• 化学式: C₁₄H₁₉NO
• 分子量: 217.311
• InChiKey: BBITVGGAGVUGRW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.0
• 重原子数：
  16.0
• 可旋转键数：
  6.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  20.31
• 氢给体数：
  0.0
• 氢受体数：
  1.0

反应信息

• 作为反应物：
  描述：

  N-benzyl-N-(pent-4-en-1-yl)acetamide 在 劳森试剂 作用下， 以 甲基叔丁基醚 为溶剂， 反应 48.0h， 以68%的产率得到N-benzyl-N-(pent-4-en-1-yl)ethanethioamide
  参考文献：
  名称：

  Ti-mediated intramolecular cyclopropanation of N-alkenyl thioamides: scope and mechanistic study

  摘要：

  Although thioamides generally undergo a reductive alkylation process when they are treated with a Grignard reagent in the presence of Ti(OiPr)(4), substrates fitted with a but-3-enyl substitution at the nitrogen atom are shown to be converted into bicyclic aminocyclopropanes. These reactions are compared with the similar cyclisations of the corresponding carboxylic amide substrates. A mechanistic study is provided. Coincidently, new reagent systems are identified for the mediation of the same transformation. (C) 2014 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2014.04.006
• 作为产物：
  描述：

  苄胺 在 吡啶 作用下， 以 乙腈 为溶剂， 反应 56.0h， 生成 N-benzyl-N-(pent-4-en-1-yl)acetamide
  参考文献：
  名称：

  Ti-mediated intramolecular cyclopropanation of N-alkenyl thioamides: scope and mechanistic study

  摘要：

  Although thioamides generally undergo a reductive alkylation process when they are treated with a Grignard reagent in the presence of Ti(OiPr)(4), substrates fitted with a but-3-enyl substitution at the nitrogen atom are shown to be converted into bicyclic aminocyclopropanes. These reactions are compared with the similar cyclisations of the corresponding carboxylic amide substrates. A mechanistic study is provided. Coincidently, new reagent systems are identified for the mediation of the same transformation. (C) 2014 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2014.04.006

文献信息

• Palladium-Catalyzed Hydrocarbonylative C–N Coupling of Alkenes with Amides
  作者：Xibing Zhou、Guoying Zhang、Bao Gao、Hanmin Huang

  DOI：10.1021/acs.orglett.8b00538

  日期：2018.4.20

  An efficient palladium-catalyzed hydrocarbonylative C–N coupling of alkenes with amides has been developed. The reaction was performed via hydrocarbonylation of alkenes, followed by acyl metathesis with amides. Both intermolecular and intramolecular reactions proceed smoothly to give either branched or linear amides in high turnover number (3500) with NH4Cl or NMP·HCl as a proton source under the palladium

  已经开发了一种有效的钯催化烯烃与酰胺的烷化C–N偶联反应。该反应通过烯烃的羰基化，然后用酰胺进行酰基复分解来进行。分子间和分子内反应均能顺利进行，在钯催化下，以NH 4 Cl或NMP·HCl为质子源，可以得到高周转数（3500）的支链或直链酰胺。当廉价的NMP·DCl用作氘源时，该反应为催化氘代酰胺提供了一种方便的催化方法。
• Tactics for the asymmetric preparation of 2-azabicyclo[3.1.0]hexane and 2-azabicyclo[4.1.0]heptane scaffolds
  作者：Andrzej Wolan、Mohamad Soueidan、Angèle Chiaroni、Pascal Retailleau、Sandrine Py、Yvan Six

  DOI：10.1016/j.tetlet.2011.03.026

  日期：2011.5

  In this contribution, two methods are presented for the removal of benzyl-type protecting groups attached to the nitrogen atom of 2-azabicyclo[3.1.0]hexane and 2-azabicyclo[4.1.0]heptane systems. The first, based on the Polonovski reaction, is suitable for [3.1.0] systems. The second relies on an elimination process, starting from derivatives of O-methyl phenylglycinol, and is more general in terms

  在这一贡献中，提出了两种方法来除去连接在2-氮杂双环[3.1.0]己烷和2-氮杂双环[4.1.0]庚烷系统的氮原子上的苄基型保护基。第一种基于Polonovski反应，适用于[3.1.0]系统。第二种依赖于消除过程，该过程从O-甲基苯基甘氨醇的衍生物开始，并且在可耐受的底物方面更为普遍。因此可以得到包括对映体纯的分子的仲双环环丙胺。这些化合物然后准备进一步功能化。
• Deprotection of benzyl-derived groups via photochemically mesolytic cleavage of C–N and C–O bonds
  作者：Kangjiang Liang、Xipan Li、Delian Wei、Cuihua Jin、Chuanwang Liu、Chengfeng Xia

  DOI：10.1016/j.chempr.2022.11.001

  日期：2023.2

  easily removed via visible light irradiation under mild conditions. We found that an excited phenolate-type photocatalyst efficiently transfers an electron to the benzene ring of benzyl-derived protecting groups to generate a phenyl radical anion. The benzyl C–N or C–O bond is then mesolytically cleaved by releasing a benzyl radical. This method enables efficient deprotection of the benzyl group on amides

  苄基及其衍生物是有机合成中最常用和最广泛使用的保护基团，通常通过传统的过渡金属催化氢解或 Birch 还原来去除。氢解受到官能团相容性以及氢的易燃性和易爆性的限制，而 Birch 还原则受到易燃碱和苛刻条件的限制。在这里，我们报告在温和条件下通过可见光照射很容易去除苄基衍生的保护基团。我们发现激发的酚盐型光催化剂有效地将电子转移到苄基衍生保护基团的苯环上以产生苯基阴离子。苄基 C-N 或 C-O 键然后通过释放苄基自由基被分解裂解。该方法能够有效地脱保护酰胺、芳基胺、醚、酯和氨基甲酸酯上的苄基。具体而言，该方法在碳水化合物、肽、药物和具有多种功能的天然产物中显示出出色的化学和区域选择性。