(S)-4,5-dihydro-5-pivaloyloxymethyl-2(3H)-pyrrolone | 468726-64-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡咯烷类
• 英文名称: (S)-4,5-dihydro-5-pivaloyloxymethyl-2(3H)-pyrrolone
• 英文别名: [(2S)-5-oxopyrrolidin-2-yl]methyl 2,2-dimethylpropanoate
• CAS: 468726-64-9
• 化学式: C₁₀H₁₇NO₃
• 分子量: 199.25
• InChiKey: MDTIQKNJDGSKAT-ZETCQYMHSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1
• 重原子数：
  14
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.8
• 拓扑面积：
  55.4
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (S)-4,5-dihydro-5-pivaloyloxymethyl-2(3H)-pyrrolone 在 4-二甲氨基吡啶 、 二异丁基氢化铝 、 三乙胺 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 28.0h， 生成 (5S)-N-(tert-butoxycarbonyl)-2-hydroxy-5-pivaloyloxymethylpyrrolidine
  参考文献：
  名称：

  Efficient synthesis of (S)-3,4-dihydro-2-pivaloyloxymethyl-2H-pyrrole 1-oxide

  摘要：

  A convenient synthesis of the title nitrone is reported. The sequence starts from ethyl L-pyroglutamate as the source of chirality and the key step is the generation of an unstable alpha-methoxy-N-carboxylate ion. Which readily decomposes to an imine. The oxidation of the imine with methyl(trifluoromethyl)dioxirane provides the enantiopure nitrone, which is trapped with dimethyl acetylenedicarboxylate. (C) 2002 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0957-4166(02)00110-6
• 作为产物：
  描述：

  L-焦谷氨酸乙酯 、 alkaline earth salt of/the/ methylsulfuric acid 在 吡啶 、 4-二甲氨基吡啶 、 锂硼氢 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 72.0h， 生成 (S)-4,5-dihydro-5-pivaloyloxymethyl-2(3H)-pyrrolone
  参考文献：
  名称：

  Efficient synthesis of (S)-3,4-dihydro-2-pivaloyloxymethyl-2H-pyrrole 1-oxide

  摘要：

  A convenient synthesis of the title nitrone is reported. The sequence starts from ethyl L-pyroglutamate as the source of chirality and the key step is the generation of an unstable alpha-methoxy-N-carboxylate ion. Which readily decomposes to an imine. The oxidation of the imine with methyl(trifluoromethyl)dioxirane provides the enantiopure nitrone, which is trapped with dimethyl acetylenedicarboxylate. (C) 2002 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0957-4166(02)00110-6

文献信息

• Synthetic Studies toward (+)-Lysergic Acid: Construction of the Tetracyclic Ergoline Skeleton
  作者：Tohru Fukuyama、Tohru Inoue、Satoshi Yokoshima

  DOI：10.3987/com-08-s(d)42

  日期：——

  We have successfully constructed the tetracyclic skeleton of lysergic acid, which features an acylation at the C3 position of the indole as well as an intramolecular Heck reaction. The optically active D ring unit could be derived from L-pyroglutamic acid via a disrotatory electrocyclic reaction of a dibromocyclopropane.
• Efficient synthesis of (S)-3,4-dihydro-2-pivaloyloxymethyl-2H-pyrrole 1-oxide
  作者：Félix Busqué、Pedro de March、Marta Figueredo、Josep Font、Timothy Gallagher、Sergio Milán

  DOI：10.1016/s0957-4166(02)00110-6

  日期：2002.3

  A convenient synthesis of the title nitrone is reported. The sequence starts from ethyl L-pyroglutamate as the source of chirality and the key step is the generation of an unstable alpha-methoxy-N-carboxylate ion. Which readily decomposes to an imine. The oxidation of the imine with methyl(trifluoromethyl)dioxirane provides the enantiopure nitrone, which is trapped with dimethyl acetylenedicarboxylate. (C) 2002 Elsevier Science Ltd. All rights reserved.