(4S)-N-((S)-1-phenyleth-1-yl)-4-phenyl-3-azapentanamide | 143746-58-1

• 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: (4S)-N-((S)-1-phenyleth-1-yl)-4-phenyl-3-azapentanamide
• 英文别名: (4S)-N-((S)-1-phenethyl)-4-phenyl-3-azapentanamide；N-[(1S)-1-phenylethyl]-2-[[(1S)-1-phenylethyl]amino]acetamide
• CAS: 143746-58-1
• 化学式: C₁₈H₂₂N₂O
• 分子量: 282.385
• InChiKey: OMYBIQUETQQTBK-GJZGRUSLSA-N

物化性质

• 沸点：
  462.1±38.0 °C(Predicted)
• 密度：
  1.064±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  21
• 可旋转键数：
  6
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.28
• 拓扑面积：
  41.1
• 氢给体数：
  2
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (4S)-N-((S)-1-phenyleth-1-yl)-4-phenyl-3-azapentanamide 在 正丁基锂 、 sodium carbonate 作用下， 以 四氢呋喃 、 正己烷 、 水 、 丙酮 为溶剂， 反应 13.0h， 生成 (3R)-<3-methyl-1,4-bis(S)-1-phenylethyl>-piperazine-2,5-dione
  参考文献：
  名称：

  Diastereoselective alkylation of (3S)- and (3R)-3-methylpiperazine-2,5-dione derivatives. A convenient approach to both (S)- and (R)-alanine

  摘要：

  Treatment of (3S)-3-methylpiperazine-2,5-dione 6a with LHDMS followed by alkylation of the corresponding enolate with methyl iodide affords (3S,6S)-3,6-dimethyl derivative 7 in 98% de. The same reaction sequence carried out on (3R)-derivative 6b leads to a 93:7 diastereomeric mixture of (3R,6R)-8a and (3R,6S)-8b. Cleavage of the heterocyclic ring of 7 and ga with 57% HI leads to (S)- and (R)-alanine, respectively. The configuration at C-3 (of 6a and 6b) and at C-6 (of 7 and 8a) can be assigned on the basis of H-1 NMR spectroscopy and conformational analysis performed by MMPMI.

  DOI：

  10.1021/jo00050a030
• 作为产物：
  描述：

  (S)-(-)- α-甲基苄胺 在 potassium carbonate 、 三乙胺 作用下， 以 乙醇 、 二氯甲烷 为溶剂， 生成 (4S)-N-((S)-1-phenyleth-1-yl)-4-phenyl-3-azapentanamide
  参考文献：
  名称：

  小分子作为不对称Strecker反应的手性有机催化剂

  摘要：

  一种简单，新颖的手性酰胺基有机催化剂6是由不对称Strecker反应容易获得的起始原料合成的。各种Ñ -benzhydryl-和Ñ甲苯磺酰基取代的亚胺被认为是合适的底物与我的i-PrOH中的手性有机催化剂的存在下，添加剂6在0℃下与作为ethylcyanoformate氰化物为手性合成源α-氨基腈。N-苯甲酰基-和N-均在24-30小时内获得高收率（高达91％）和出色的对映选择性（ee高达产物的99％）-甲苯磺酰基取代的亚胺。为了理解催化斯特雷克反应的机理，对不同浓度的催化剂6，氰基甲酸乙酯和底物进行了NMR研究和动力学研究。发现不对称的Strecker反应相对于催化剂的浓度，EtOCOCN和底物中的饱和动力学是一级的。提出了对映选择性斯特雷克反应的合适的立体化学模型。我们进一步扩展了我们的研究，使用手性α-氨基腈[2-（苯甲酰基氨基）-2-（吡啶-3-基）乙腈]以高收率和高对映选择性合成手性氨基酰胺和乙内酰脲。

  DOI：

  10.1021/cs400742d

文献信息

• Synthesis of (3R,6R)- and (3S,6S)-3,6-dialkylpiperazin-2,5-dione derivatives as useful intermediates to both (R) and (S) α-aminoacids
  作者：Gianni Porzi、Sergio Sandri

  DOI：10.1016/s0957-4166(00)86217-5

  日期：1994.3

  The alkylation of 2 leads to a diastereomeric mixture where 4 is generally present in greater amounts than 3. The successive alkylation of 4 affords exclusively the cis derivative 7, while a cis/trans mixture is obtained from isomer 3. In alkaline solution, the trans isomer 6 suffers a total conversion into a 1:1 mixture of the cis isomers 5 and 7 easily separated by silica gel chromatography. The configurations of the introduced stereogenic centers at C-3 and C-6 have been assigned on the basis of H-1-NMR spectroscopic data. Cleavage of heterocyclic ring of 5 and 7 leads to the corresponding (R)- and (S)-alpha-aminoacids respectively. Therefore, the substrate 2 appears a very useful chiral template to synthetize enantiomerically pure alpha-amino acids.
• Diastereoselective alkylation of (3S)- and (3R)-3-methylpiperazine-2,5-dione derivatives. A convenient approach to both (S)- and (R)-alanine
  作者：Mario Orena、Gianni Porzi、Sergio Sandri

  DOI：10.1021/jo00050a030

  日期：1992.11

  Treatment of (3S)-3-methylpiperazine-2,5-dione 6a with LHDMS followed by alkylation of the corresponding enolate with methyl iodide affords (3S,6S)-3,6-dimethyl derivative 7 in 98% de. The same reaction sequence carried out on (3R)-derivative 6b leads to a 93:7 diastereomeric mixture of (3R,6R)-8a and (3R,6S)-8b. Cleavage of the heterocyclic ring of 7 and ga with 57% HI leads to (S)- and (R)-alanine, respectively. The configuration at C-3 (of 6a and 6b) and at C-6 (of 7 and 8a) can be assigned on the basis of H-1 NMR spectroscopy and conformational analysis performed by MMPMI.
• Small Molecule as a Chiral Organocatalyst for Asymmetric Strecker Reaction
  作者：S. Saravanan、Noor-ul H. Khan、Rukhsana I. Kureshy、Sayed H. R. Abdi、Hari C. Bajaj

  DOI：10.1021/cs400742d

  日期：2013.12.6

  catalytic Strecker reaction, NMR studies and kinetic investigations were carried out with different concentrations of the catalyst 6, ethylcyanoformate, and substrate. It was found that the asymmetric Strecker reaction was first-order with respect to the concentration of the catalyst, EtOCOCN, and saturation kinetics in substrate. An appropriate stereochemical model for the enantioselective Strecker reaction

  一种简单，新颖的手性酰胺基有机催化剂6是由不对称Strecker反应容易获得的起始原料合成的。各种Ñ -benzhydryl-和Ñ甲苯磺酰基取代的亚胺被认为是合适的底物与我的i-PrOH中的手性有机催化剂的存在下，添加剂6在0℃下与作为ethylcyanoformate氰化物为手性合成源α-氨基腈。N-苯甲酰基-和N-均在24-30小时内获得高收率（高达91％）和出色的对映选择性（ee高达产物的99％）-甲苯磺酰基取代的亚胺。为了理解催化斯特雷克反应的机理，对不同浓度的催化剂6，氰基甲酸乙酯和底物进行了NMR研究和动力学研究。发现不对称的Strecker反应相对于催化剂的浓度，EtOCOCN和底物中的饱和动力学是一级的。提出了对映选择性斯特雷克反应的合适的立体化学模型。我们进一步扩展了我们的研究，使用手性α-氨基腈[2-（苯甲酰基氨基）-2-（吡啶-3-基）乙腈]以高收率和高对映选择性合成手性氨基酰胺和乙内酰脲。