(4R,5S)-5-<1,2-bis(isopropoxycarbonyl)hydrazino>-4-methoxy-2-oxazolidinone | 142647-12-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑烷类
• 英文名称: (4R,5S)-5-<1,2-bis(isopropoxycarbonyl)hydrazino>-4-methoxy-2-oxazolidinone
• 英文别名: propan-2-yl N-[(4R,5S)-4-methoxy-2-oxo-1,3-oxazolidin-5-yl]-N-(propan-2-yloxycarbonylamino)carbamate
• CAS: 142647-12-9
• 化学式: C₁₂H₂₁N₃O₇
• 分子量: 319.315
• InChiKey: XOAKHFPBXUFRHO-BDAKNGLRSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.92
• 重原子数：
  22.0
• 可旋转键数：
  4.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.75
• 拓扑面积：
  115.43
• 氢给体数：
  2.0
• 氢受体数：
  7.0

反应信息

• 作为反应物：
  描述：

  (4R,5S)-5-<1,2-bis(isopropoxycarbonyl)hydrazino>-4-methoxy-2-oxazolidinone 在 4-二甲氨基吡啶 、 三氟化硼乙醚 、 三乙胺 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 10.5h， 生成
  参考文献：
  名称：

  Chiral electrophilic “glycinal” equivalents. New synthons for optically active α-amino acids and 4-substituted 2-oxazolidinones

  摘要：

  The thermal reaction of 3-[(IS)-2-alkoxy-1-apocamphanecarbonyl]-2-oxazolones (21a-c) with dialkyl azodicarboxylates (9) results in exclusive formation of [4 + 2] type cycloadducts (22 and 23) with moderate levels of diastereofacial selection (up to 72% d.e.). The diastereomers thus obtained were readily purified and subsequent treatment with acidic methanol followed by removal of the auxiliary with LiBH4/MeOH (1:2) gave optically pure 4-methoxy-5-hydrazino-2-oxazolidinones (26 and 27), which serve as alpha-aminoaldehyde templates useful for the synthesis of a wide variety of optically active alpha-amino acids as well as 4-alkyl and 4-aryl-2-oxazolidinones. (C) 1997, Elsevier Science Ltd.

  DOI：

  10.1016/s0040-4020(96)01077-0
• 作为产物：
  描述：

  diisopropyl azodicarboxylate 在 甲醇 、 锂硼氢 、 对甲苯磺酸 作用下， 以 四氢呋喃 、 苯 为溶剂， 反应 14.55h， 生成 (4R,5S)-5-<1,2-bis(isopropoxycarbonyl)hydrazino>-4-methoxy-2-oxazolidinone
  参考文献：
  名称：

  Chiral electrophilic “glycinal” equivalents. New synthons for optically active α-amino acids and 4-substituted 2-oxazolidinones

  摘要：

  The thermal reaction of 3-[(IS)-2-alkoxy-1-apocamphanecarbonyl]-2-oxazolones (21a-c) with dialkyl azodicarboxylates (9) results in exclusive formation of [4 + 2] type cycloadducts (22 and 23) with moderate levels of diastereofacial selection (up to 72% d.e.). The diastereomers thus obtained were readily purified and subsequent treatment with acidic methanol followed by removal of the auxiliary with LiBH4/MeOH (1:2) gave optically pure 4-methoxy-5-hydrazino-2-oxazolidinones (26 and 27), which serve as alpha-aminoaldehyde templates useful for the synthesis of a wide variety of optically active alpha-amino acids as well as 4-alkyl and 4-aryl-2-oxazolidinones. (C) 1997, Elsevier Science Ltd.

  DOI：

  10.1016/s0040-4020(96)01077-0

文献信息

• Versatile routes to chiral 4-substituted 2-oxazolidinones and .ALPHA.-amino acids. Use of chiron, (4+2) cycloadducts of dialkyl azodicarboxylates and 2-oxazolones.
  作者：Hirofumi MATSUNAGA、Tadao ISHIZUKA、Nobuhiro MARUBAYASHI、Takehisa KUNIEDA

  DOI：10.1248/cpb.40.1077

  日期：——

  The thermal reaction of 3-[(1S)-2-alkoxyl-1-apocamphanecarbonyl]-2-oxazolones with dialkyl azodicarboxylates results in exclusive formation of [4+2] type cycloadducts with moderate levels of diastereofacial selection, which serve as versatile chiral synthons for a wide variety of 4-alkyl and 4-aryl-2-oxazolidinones as well as α-amino acids.

  3-[(1S)-2-烷氧基-1-阿波伞烷酮]-2-噁唑酮与二烷基偶氮二甲酸酯的热反应导致专一性形成[4+2]型环加成物，具有中等程度的非对映面选择性，这些产物作为多功能的手性合成前体，可用于合成多种4-烷基和4-芳基-2-噁唑啉酮以及α-氨基酸。