(E)-4-Carbomethoxypent-4-enyl oxime | 144800-70-4

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: (E)-4-Carbomethoxypent-4-enyl oxime
• 英文别名: methyl (5E)-5-hydroxyimino-2-methylidenepentanoate
• CAS: 144800-70-4
• 化学式: C₇H₁₁NO₃
• 分子量: 157.169
• InChiKey: LMTLUNHURDQJGW-VMPITWQZSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.96
• 重原子数：
  11.0
• 可旋转键数：
  4.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.43
• 拓扑面积：
  58.89
• 氢给体数：
  1.0
• 氢受体数：
  4.0

反应信息

• 作为产物：
  描述：

  methyl 2-[2-(1,3-dioxolan-2-yl)ethyl]propenoate 在 盐酸 、 盐酸羟胺 、 sodium acetate 作用下， 以 四氢呋喃 、 水 、 乙腈 为溶剂， 反应 4.5h， 生成 (E)-4-Carbomethoxypent-4-enyl oxime
  参考文献：
  名称：

  X = Y - ZH systems as potential 1,3-dipoles part 35. Generation of nitrones from oximes. Class 3 processes. Tandem intramolecular michael addition (1,3-azaprotio cyclotransfer) - intermolecular 1,3-dipolar cycloaddition reactions.

  摘要：

  Aldoximes and ketoximes possessing gamma- or delta-alkenyl substituents undergo thermal conversion to 5- and 6- membered cyclic nitrones via a 1,3-azaprotio cyclotransfer, a 2n + 2-sigma + 2-pi concerted process, rather than a Michael addition. The reactions can be performed as a tandem nitrone formation-cycloaddition sequence or, if required, the intermediate nitrones can be isolated. The cycloadditions usually proceed via an exo-transition state and show both regio- and diastereofacial-specificity. Preliminary attempts at chiral induction via a menthyl auxiliary are reported.

  DOI：

  10.1016/s0040-4020(01)89883-5

文献信息

• X = Y - ZH systems as potential 1,3-dipoles part 35. Generation of nitrones from oximes. Class 3 processes. Tandem intramolecular michael addition (1,3-azaprotio cyclotransfer) - intermolecular 1,3-dipolar cycloaddition reactions.
  作者：Ronald Grigg、Jasothara Markandu、Trevor Perrior、Sivagnanasundram Surendrakumar、William J. Warnock

  DOI：10.1016/s0040-4020(01)89883-5

  日期：1992.1

  Aldoximes and ketoximes possessing gamma- or delta-alkenyl substituents undergo thermal conversion to 5- and 6- membered cyclic nitrones via a 1,3-azaprotio cyclotransfer, a 2n + 2-sigma + 2-pi concerted process, rather than a Michael addition. The reactions can be performed as a tandem nitrone formation-cycloaddition sequence or, if required, the intermediate nitrones can be isolated. The cycloadditions usually proceed via an exo-transition state and show both regio- and diastereofacial-specificity. Preliminary attempts at chiral induction via a menthyl auxiliary are reported.