benzyl 4-(1-benzyl-1H-indol-3-yl)butanoate | 934531-64-3

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: benzyl 4-(1-benzyl-1H-indol-3-yl)butanoate
• 英文别名: Benzyl 4-(1-benzylindol-3-yl)butanoate；benzyl 4-(1-benzylindol-3-yl)butanoate
• CAS: 934531-64-3
• 化学式: C₂₆H₂₅NO₂
• 分子量: 383.49
• InChiKey: JEBCIEXTSXHHGN-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.5
• 重原子数：
  29
• 可旋转键数：
  9
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.19
• 拓扑面积：
  31.2
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  benzyl 4-(1-benzyl-1H-indol-3-yl)butanoate 在 cerium(III) chloride 、 2-碘酰基苯甲酸 作用下， 以 水 、 乙腈 为溶剂， 反应 11.5h， 以85%的产率得到Benzyl 4-(1-benzyl-3-hydroxy-2-oxoindol-3-yl)butanoate
  参考文献：
  名称：

  CeCl3·7H2O/IBX-promoted oxidation of 3-alkylindoles to 3-hydroxyoxindoles

  摘要：

  3-Alkylindoles undergo smooth oxidation with IBX in the presence of CeCl(3 center dot)7H(2)O in aqueous acetonitrile at ambient temperature to afford the corresponding 3-hydroxyoxindoles in high yields. This method is very useful for the direct preparation of 3-hydroxyoxindoles from 3-alkylindoles. Operational simplicity, mild and neutral reaction conditions in aqueous solution are the key features of this protocol. (c) 2007 Published by Elsevier Ltd.

  DOI：

  10.1016/j.tetlet.2007.01.054
• 作为产物：
  描述：

  N-苄基吲哚-3-乙酸 在 4-二甲氨基吡啶 、 1-butyl-1,4-dihydronicotinamide 、 N,N'-二异丙基碳二亚胺 作用下， 以 二氯甲烷 、 二甲基亚砜 为溶剂， 反应 16.0h， 生成 benzyl 4-(1-benzyl-1H-indol-3-yl)butanoate
  参考文献：
  名称：

  NADH和蓝光促进脱羧烷基偶联

  摘要：

  已经发现光激发的二氢烟酰胺（如 NADH 和类似物）在没有辅助光催化剂的情况下，在氧化还原活性酯的还原脱羧时产生烷基自由基。这一原理允许氧化还原活性羧酸盐衍生物和缺电子烯烃之间的脂肪族光耦合，显示出令人惊讶的防水和空气耐受性以及在稀释条件下异常高的耦合率。展示了在其他羧酸存在下反应的正交性及其在 DNA 功能化中的效用，特别是将可见光与 NADH（生命普遍存在的还原剂）结合使用。

  DOI：

  10.1021/jacs.0c09678

文献信息

• Catalytic Enantioselective Synthesis of Tetrahydocarbazoles and Exocyclic Pictet–Spengler-Type Reactions
  作者：Casper L. Hansen、Ragnhild G. Ohm、Lasse B. Olsen、Erhad Ascic、David Tanner、Thomas E. Nielsen

  DOI：10.1021/acs.orglett.6b02718

  日期：2016.12.2

  developed. The strategy relies on two types of 6-exo-trig cyclization of 3-substituted indole substrates. Enantioselective domino Friedel–Crafts-type reactions leading to THCAs can be catalyzed by chiral phosphoric acid derivatives (with up to >99% ee), and the first examples of exocyclic Pictet–Spengler reactions to form THCAs are reported.

  已经开发了合成手性四氢咔唑（THCA）的合成策略。该策略依赖于3-取代的吲哚底物的两种类型的6 -exo-trig环化。手性磷酸衍生物（ee含量高达99％以上）可以催化导致THCA的对映选择性多米诺弗里德-克拉夫特型反应，并且报道了形成THCA的环外Pictet-Spengler反应的第一个实例。
• Direct C–H Cyanation by ICN Formed <i>In Situ</i>: Nannozinone B
  作者：Paul Wienecke、Hans-Dieter Arndt

  DOI：10.1021/acs.orglett.3c00176

  日期：2023.2.24

  A novel method for C–H cyanation of different pyrans, pyrroles, indoles, and acyclic nucleophilic double bonds using TMSCN, NIS, and Zn(OTf)2 as a catalyst is described. The transformation is conducted under mild conditions tolerating a variety of functional groups. Zn(OTf)2 is likely to serve a dual catalytic role as an activator for TMSCN and for the cyanogen iodide generated in situ. Optimization

  描述了一种使用 TMSCN、NIS 和 Zn(OTf) 2作为催化剂对不同吡喃、吡咯、吲哚和无环亲核双键进行 C-H 氰化的新方法。转化是在温和的条件下进行的，可以接受各种官能团。Zn(OTf) 2可能作为 TMSCN 和原位生成的碘化氰的活化剂发挥双重催化作用。报告了优化、底物范围和机械观察结果。此外，该方法应用于天然产物nannozinone B的首次全合成。
• 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.
• Decarboxylative Alkyl Coupling Promoted by NADH and Blue Light
  作者：Rajdip Chowdhury、Zhunzhun Yu、My Linh Tong、Stefanie V. Kohlhepp、Xiang Yin、Abraham Mendoza

  DOI：10.1021/jacs.0c09678

  日期：2020.11.25

  Photoexcited dihydronicotinamides like NADH and analogues have been found to generate alkyl radicals upon reductive decarboxylation of redox-active esters without auxiliary photocatalysts. This principle allowed aliphatic photocoupling between redox-active carboxylate derivatives and electron-poor olefins, displaying surprising water and air-tolerance and unusually high coupling rates in dilute conditions

  已经发现光激发的二氢烟酰胺（如 NADH 和类似物）在没有辅助光催化剂的情况下，在氧化还原活性酯的还原脱羧时产生烷基自由基。这一原理允许氧化还原活性羧酸盐衍生物和缺电子烯烃之间的脂肪族光耦合，显示出令人惊讶的防水和空气耐受性以及在稀释条件下异常高的耦合率。展示了在其他羧酸存在下反应的正交性及其在 DNA 功能化中的效用，特别是将可见光与 NADH（生命普遍存在的还原剂）结合使用。
• CeCl3·7H2O/IBX-promoted oxidation of 3-alkylindoles to 3-hydroxyoxindoles
  作者：J.S. Yadav、B.V. Subba Reddy、Ch. Suresh Reddy、A.D. Krishna

  DOI：10.1016/j.tetlet.2007.01.054

  日期：2007.3

  3-Alkylindoles undergo smooth oxidation with IBX in the presence of CeCl(3 center dot)7H(2)O in aqueous acetonitrile at ambient temperature to afford the corresponding 3-hydroxyoxindoles in high yields. This method is very useful for the direct preparation of 3-hydroxyoxindoles from 3-alkylindoles. Operational simplicity, mild and neutral reaction conditions in aqueous solution are the key features of this protocol. (c) 2007 Published by Elsevier Ltd.