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(4R,5E)-N-Hydroxy-4-methyl-5,7-octadienamide | 137105-69-2

中文名称
——
中文别名
——
英文名称
(4R,5E)-N-Hydroxy-4-methyl-5,7-octadienamide
英文别名
(4R,5E)-N-hydroxy-4-methylocta-5,7-dienamide
(4R,5E)-N-Hydroxy-4-methyl-5,7-octadienamide化学式
CAS
137105-69-2
化学式
C9H15NO2
mdl
——
分子量
169.224
InChiKey
RESMVSZMADXSRA-ZJELKQJVSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    1.4
  • 重原子数:
    12
  • 可旋转键数:
    5
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    0.44
  • 拓扑面积:
    49.3
  • 氢给体数:
    2
  • 氢受体数:
    2

反应信息

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文献信息

  • Enantiogenic total syntheses of (-)-indolizidines (bicyclic gephyrotoxins) 205A, 207A, 209B, and 235B via the intramolecular Diels-Alder reaction of a chiral N-acylnitroso compound
    作者:Yuji Shishido、Chihiro Kibayashi
    DOI:10.1021/jo00036a024
    日期:1992.5
    A general protocol for the enantiogenic total syntheses of a series of the 5-substituted 8-methylindolizidine class of alkaloids from the arrow poison frog, i.e., (-)-indolizidines 205A (1), 207A (2), 209B (3), and 235B (4), is described, in which a key step is the asymmetric intramolecular Diels-Alder reaction of the chiral N-acylnitroso compound 8 leading to the bicyclic oxazinolactam 7 which was utilized as a versatile common chiral intermediate for the preparation of these alkaloids. Subsequent introduction of the C-5 (in future) side chain was elaborated by means of a completely stereocontrolled process involving a Grignard reaction followed by reduction with NaBH4 in acidic media. The bicyclic oxazines 20a, 24, and 26 thus obtained were then subjected to reductive N-O bond cleavage followed by cyclodehydration using PPh3/CBr4/Et3N, which provided the (-)-enantiomers of the title alkaloids.
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