O-ethyl-cinchonidine

• 分子结构分类: 有机化合物 - 生物碱及其衍生物 - 金鸡纳生物碱
• 英文名称: O-ethyl-cinchonidine
• 英文别名: 4-[(R)-[(2S,4S,5R)-5-ethenyl-1-azabicyclo[2.2.2]octan-2-yl]-ethoxymethyl]quinoline
• 化学式: C₂₁H₂₆N₂O
• 分子量: 322.45
• InChiKey: CNGUDGBJSHMSTR-SNHGZMDHSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.6
• 重原子数：
  24
• 可旋转键数：
  5
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.48
• 拓扑面积：
  25.4
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  辛可尼丁 在 三乙胺 作用下， 以 四氢呋喃 为溶剂， 反应 87.0h， 生成 O-ethyl-cinchonidine
  参考文献：
  名称：

  Preparation of Enantiopure 1-Azabicyclo[3.2.2]nonanes Functionalized at Carbon C3, from Cinchonine and Cinchonidine. Stereoselective Solvolysis and an Easily Enolizable Ketone

  摘要：

  Solvolysis of C9 mesylated cinchonidine 1-OMs and cinchonine 2-OMs in solvent MeOH, EtOH, and CF3CH2OH affords ring-expanded 1-azabicyclo[3.2.2]nonanes oxygenated at carbon C3 ("second Cinchona rearrangement"). The newly introduced substituents at C3 and the neighboring quinolyl group Q' at C2 adopt quasiequatorial positions. The derived 1-azabicyclo[3.2.2]nonan-3-ones 5 and 6 are easily equilibrated. On contact with MeOD uptake of deuterium takes place at room temperature.

  DOI：

  10.1021/jo026890d

文献信息

• Inversion of enantioselectivity in the hydrogenation of ketopantolactone on platinum modified by ether derivatives of cinchonidine
  作者：Simon Diezi、Andras Szabo、Tamas Mallat、Alfons Baiker

  DOI：10.1016/s0957-4166(03)00528-7

  日期：2003.9

  Asymmetric hydrogenation of ketopantolactone was studied on a 5 wt% Pt/Al2O3 catalyst in the presence of cinchonidine and its O-methyl. -ethyl. -phenyl and -trimethylsilyl derivatives. Inversion of enantioselectivity with the latter two bulky substituents proved that in the enantiodifferentiating step cinchonidine adsorbs via the quinoline ring lying approximately parallel to the Pt surface. The striking nonlinear effect observed with cinchonidine-O-phenyl-cinchonidine mixtures is attributed to differences in the adsorption strength and geometry of the modifiers. (C) 2003 Elsevier Ltd. All rights reserved.
• Preparation of Enantiopure 1-Azabicyclo[3.2.2]nonanes Functionalized at Carbon C3, from Cinchonine and Cinchonidine. Stereoselective Solvolysis and an Easily Enolizable Ketone
  作者：Stefanie Röper、M. Heiko Franz、Rudolf Wartchow、H. Martin R. Hoffmann

  DOI：10.1021/jo026890d

  日期：2003.6.1

  Solvolysis of C9 mesylated cinchonidine 1-OMs and cinchonine 2-OMs in solvent MeOH, EtOH, and CF3CH2OH affords ring-expanded 1-azabicyclo[3.2.2]nonanes oxygenated at carbon C3 ("second Cinchona rearrangement"). The newly introduced substituents at C3 and the neighboring quinolyl group Q' at C2 adopt quasiequatorial positions. The derived 1-azabicyclo[3.2.2]nonan-3-ones 5 and 6 are easily equilibrated. On contact with MeOD uptake of deuterium takes place at room temperature.