(S)-3-(1-benzyl-4-chloro-1H-indol-3-yl)-butyric acid methyl ester

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吲哚及其衍生物
• 英文名称: (S)-3-(1-benzyl-4-chloro-1H-indol-3-yl)-butyric acid methyl ester
• 英文别名: methyl (3S)-3-(1-benzyl-4-chloroindol-3-yl)butanoate
• 化学式: C₂₀H₂₀ClNO₂
• 分子量: 341.837
• InChiKey: UJARXJOWHUJBFF-AWEZNQCLSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.6
• 重原子数：
  24
• 可旋转键数：
  6
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  31.2
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  4-氯吲哚 在 (S,S)-IndaPybox*Sc(OTf)3 、 sodium hydride 作用下， 以 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 69.5h， 生成 (S)-3-(1-benzyl-4-chloro-1H-indol-3-yl)-butyric acid methyl ester
  参考文献：
  名称：

  对映选择性吲哚Friedel-由双（恶唑啉基）吡啶-三氟甲磺酸scan（III）催化的烷基化反应。

  摘要：

  已通过三氟甲磺酸scan（III）-吡啶基（双）恶唑啉配合物催化了富电子亲核试剂的高度对映选择性弗里德-克来福特烷基化反应。该反应涉及作为亲电子试剂的α，β-不饱和酰基膦酸酯和作为亲核试剂的主要取代的吲哚。通过将醇或胺直接添加到反应混合物中，将反应性酰基膦酸酯产物以良好的总产率转化为相应的酯或酰胺。

  DOI：

  10.1021/ja036985c

文献信息

• Enantioselective Friedel−Crafts Alkylations Catalyzed by Bis(oxazolinyl)pyridine−Scandium(III) Triflate Complexes
  作者：David A. Evans、Keith R. Fandrick、Hyun-Ji Song、Karl A. Scheidt、Risheng Xu

  DOI：10.1021/ja072976i

  日期：2007.8.1

  The enantioselective Friedel-Crafts addition of a variety of indoles catalyzed by bis(oxazolinyl)pyridine-scandium(III) triflate complexes (Sc(III)-pybox) was accomplished utilizing a series of beta-substituted alpha,beta-unsaturated phosphonates and alpha,beta-unsaturated 2-acyl imidazoles. The acyl phosphonate products were efficiently transformed into esters and amides, whereas the acyl imidazole adducts were converted to a broader spectrum of functionalities such as esters, amides, carboxylic acids, ketones, and aldehydes. The sense of stereoinduction and level of enantioselectivity were found to be functions of the size of the substrate employed, the substitution on the ligand, and the catalyst loading. Molecular modeling of the catalyst with the bound substrates was performed based on the crystal structures of the catalyst complexes and the sense of stereoinduction observed in the addition reaction. Nonlinear effects over a range of catalyst concentrations implicate a mononuclear complex as the active catalyst.
• Enantioselective Indole Friedel−Crafts Alkylations Catalyzed by Bis(oxazolinyl)pyridine−Scandium(III) Triflate Complexes
  作者：David A. Evans、Karl A. Scheidt、Keith R. Fandrick、Hon Wai Lam、Jimmy Wu

  DOI：10.1021/ja036985c

  日期：2003.9.1

  A highly enantioselective Friedel-Crafts alkylation of electron-rich aromatic nucleophiles catalyzed by scandium(III) triflate-pyridyl(bis)oxazoline complexes has been accomplished. The reaction involves alpha,beta-unsaturated acyl phosphonates as electrophiles and primarily substituted indoles as nucleophiles. The reactive acyl phosphonate product is converted to the corresponding ester or amide in

  已通过三氟甲磺酸scan（III）-吡啶基（双）恶唑啉配合物催化了富电子亲核试剂的高度对映选择性弗里德-克来福特烷基化反应。该反应涉及作为亲电子试剂的α，β-不饱和酰基膦酸酯和作为亲核试剂的主要取代的吲哚。通过将醇或胺直接添加到反应混合物中，将反应性酰基膦酸酯产物以良好的总产率转化为相应的酯或酰胺。