(S)-4-Methyl-2-[(E)-(3-phenyl-acryloyl)amino]-pentanoic acid allylamide | 87783-84-4

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: (S)-4-Methyl-2-[(E)-(3-phenyl-acryloyl)amino]-pentanoic acid allylamide
• 英文别名: (2S)-4-methyl-2-[[(E)-3-phenylprop-2-enoyl]amino]-N-prop-2-enylpentanamide
• CAS: 87783-84-4
• 化学式: C₁₈H₂₄N₂O₂
• 分子量: 300.401
• InChiKey: XELCJHWRTRJBBT-OFAQMXQXSA-N

物化性质

• 沸点：
  611.7±55.0 °C(Predicted)
• 密度：
  1.111±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  22
• 可旋转键数：
  8
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  58.2
• 氢给体数：
  2
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (S)-4-Methyl-2-[(E)-(3-phenyl-acryloyl)amino]-pentanoic acid allylamide 在 polyaniline supported cobalt(II) salen 、 氧气 、 异丁醛 作用下， 以 乙腈 为溶剂， 以74%的产率得到3-Phenyl-oxirane-2-carboxylic acid ((S)-1-allylcarbamoyl-3-methyl-butyl)-amide
  参考文献：
  名称：

  Reverse Turn Induced π-Facial Selectivity during Polyaniline-Supported Cobalt(II) Salen Catalyzed Aerobic Epoxidation of N-Cinnamoyl l-Proline Derived Peptides

  摘要：

  A novel chemo- and diastereoselective aerobic epoxidation of the N-cinnamoyl peptides catalyzed by polyaniline-supported cobalt(II) salen (PASCOS) is described. The N-cinnamoyl proline derived peptides 1 show a high pi-facial selectivity during these epoxidations. The origin of this diastereo-selectivity in 1 has been attributed to (i) the propensity of the N-cinnamoyl proline amide to exist predominantly as trans rotamer in CDCl3, DMSO-d(6), and CH3CN medium and (ii) existence of these peptides as organized structures (gamma- and beta-turns) due to the presence of intramolecular hydrogen bonds. An extensive solution NMR and MD simulation study on 1d and 1f indicates that the origin of the high pi-facial selectivity is due to the well-defined gamma- and beta-turns which result in the hindrance of one face of the cinnamoyl double bond in the transition state of the epoxidation reaction.

  DOI：

  10.1021/jo020352j

文献信息

• Heterocycles as masked diamide/dipeptide equivalents. Formation and reactions of substituted 5-(acylamino)oxazoles as intermediates en route to the cyclopeptide alkaloids
  作者：Bruce H. Lipshutz、Randall W. Hungate、Keith E. McCarthy

  DOI：10.1021/ja00364a041

  日期：1983.12

  Etude de la synthese de dialkyl-2,4 acylamino-5 oxazoles par cyclisation a partir d'α-cyanoalkylamides d'acides, de N-acetyl α-aminoamides ou de dipeptides. Fonctionnalisation des oxazoles obtenus

  从二烷基-2,4 酰基氨基-5 恶唑环化到部分 d'α-氰基烷基酰胺 d'酸、去 N-乙酰 α-氨基酰胺或二肽合成练习曲。钝性恶唑功能化