4-(5-nitro-1H-indol-3-yl)butan-2-one | 890408-43-2

• 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: 4-(5-nitro-1H-indol-3-yl)butan-2-one
• CAS: 890408-43-2
• 化学式: C₁₂H₁₂N₂O₃
• 分子量: 232.239
• InChiKey: LIDVLUOAPMYSGZ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1
• 重原子数：
  17
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  78.7
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  4-(5-nitro-1H-indol-3-yl)butan-2-one 在 tris(dibenzylideneacetone)dipalladium(0) chloroform complex 、 palladium on activated charcoal 9-borabicyclo[3.3.1]nonane dimer 、 1-己烯 、 氢气 作用下， 以 四氢呋喃 、 二氯甲烷 、 乙酸乙酯 为溶剂， 反应 32.0h， 生成 (3S)-4-(3-allyl-5-dibenzylamino-3H-indol-3-yl)butan-2-one
  参考文献：
  名称：

  Palladium-Catalyzed Enantioselective C-3 Allylation of 3-Substituted-1H-Indoles Using Trialkylboranes

  摘要：

  We have developed a new enantioselective C-3 allylation of 3-substituted indoles using allyl alcohol and trialkylboranes. Asymmetric syntheses of 3,3-disubstituted indolines and indolenines in enantiomeric excesses up to 90% have been achieved using the bulky borane 9-BBN-C6H13 as the promoter of the reaction. The dependence of the selectivity on the nature of the borane suggests that the boron reagent has a role beyond promoting ionization of the allyl alcohol. A protocol for oxidation of indolenines to oxindoles has also been developed and led to a formal synthesis of (-)-phenserine.

  DOI：

  10.1021/ja0608139
• 作为产物：
  描述：

  3-丁烯-2-醇 、 5-硝基吲哚 在 tris(triphenylphosphine)ruthenium(II) chloride 、 lithium acetate dihydrate 、 silver(I) acetate 、 copper(II) acetate monohydrate 作用下， 以 1,2-二氯乙烷 为溶剂， 反应 48.0h， 以95%的产率得到4-(5-nitro-1H-indol-3-yl)butan-2-one
  参考文献：
  名称：

  钌催化的烯丙醇与游离吲哚的选择性CC偶联：金属催化剂的影响。

  摘要：

  研究了烯丙醇与游离吲哚在CH功能化反应中的多种反应活性。可以基于催化剂体系选择性地控制直接烷基化或级联环化反应：Ru（PPh3）3Cl2提供C3取代的β-酮吲哚，而[Ru（p-cymene）Cl2] 2则产生环化吲哚。

  DOI：

  10.1002/chem.201706080

文献信息

• Enantioselective synthesis of tetrahydrocyclopenta[b]indole bearing a chiral quaternary carbon center via Pd(<scp>ii</scp>)–SPRIX-catalyzed C–H activation
  作者：Mohamed Ahmed Abozeid、Shiho Sairenji、Shinobu Takizawa、Makoto Fujita、Hiroaki Sasai

  DOI：10.1039/c7cc03199h

  日期：——

  conjunction with the chiral spiro bis(isoxazoline) ligand (SPRIX). The presence of an N-allyl substituent on the substrate has a strong impact on both reactivity and selectivity, leading to tricyclic indole products (up to 96% ee) with a chiral quaternary carbon center.

  通过Pd（OCOCF 3）2和手性螺双（异恶唑啉）配体（SPRIX）建立了通过C–H活化的3-烯基吲哚的高对映选择性环化反应。底物上N-烯丙基取代基的存在对反应性和选择性都有很强的影响，导致具有手性季碳中心的三环吲哚产物（至多96％ee）。
• Calix[6]Arene Sulfonic Acids Catalysed Michael Reactions of Indoles with α,β-Unsaturated Ketones in Water Assisted by Microwave Radiation
  作者：Yuanyuan Xie、Linfeng Mao、Lehuan Li

  DOI：10.3184/174751913x13734725288804

  日期：2013.8

  Michael reactions of indoles with α,β-unsaturated ketones were carried out under microwave irradiation in water, affording the corresponding products in good to excellent yields. The calix[6]arene sulfonic acids bearing pendent aliphatic chains, as efficient surfactant-type acid catalysts, can be recovered after simple work-up and reused directly several times without loss of catalytic activity.

  在微波辐照下，在水中进行了吲哚与 α、β-不饱和酮的迈克尔反应，以良好到极佳的收率得到了相应的产物。带有下垂脂肪族链的钙[6]炔磺酸作为高效的表面活性剂型酸催化剂，经过简单的加工就可回收，并可直接重复使用多次而不会丧失催化活性。
• Asymmetric Dearomatization of Indoles with Azodicarboxylates via Cascade Electrophilic Amination/Aza-Prins Cyclization/Phenonium-like Rearrangement
  作者：Xian-Yun Huang、Pei-Pei Xie、Lei-Ming Zou、Chao Zheng、Shu-Li You

  DOI：10.1021/jacs.3c02773

  日期：2023.5.31

  synthesis of enantioenriched aza-[3.3.1]-bicyclic enamines and ketones, a class of structural cores in many natural products, via asymmetric dearomatization of indoles with azodicarboxylates. The reaction is initiated by electrophilic amination and followed by aza-Prins cyclization/phenonium-like rearrangement. A newly developed fluorine-containing chiral phosphoric acid displays excellent activity in

  在此，我们报告了通过吲哚与偶氮二羧酸盐的不对称脱芳构化，高效合成富含对映体的氮杂-[3.3.1]-双环烯胺和酮，这是许多天然产物中的一类结构核心。该反应由亲电胺化引发，然后是氮杂-普林斯环化/类菲重排。一种新开发的含氟手性磷酸在促进这种级联反应方面表现出优异的活性。水作为添加剂的存在或不存在指导反应途径以高收率（高达 93%）和高对映体纯度（高达 98% ee）生成烯胺或酮产物。综合密度泛函理论 (DFT) 计算揭示了反应的能量分布以及对映选择性和水诱导的化学选择性的起源。
• Palladium-Catalyzed Enantioselective C-3 Allylation of 3-Substituted-1<i>H</i>-Indoles Using Trialkylboranes
  作者：Barry M. Trost、Jean Quancard

  DOI：10.1021/ja0608139

  日期：2006.5.1

  We have developed a new enantioselective C-3 allylation of 3-substituted indoles using allyl alcohol and trialkylboranes. Asymmetric syntheses of 3,3-disubstituted indolines and indolenines in enantiomeric excesses up to 90% have been achieved using the bulky borane 9-BBN-C6H13 as the promoter of the reaction. The dependence of the selectivity on the nature of the borane suggests that the boron reagent has a role beyond promoting ionization of the allyl alcohol. A protocol for oxidation of indolenines to oxindoles has also been developed and led to a formal synthesis of (-)-phenserine.
• Ruthenium-Catalyzed Selective C−C Coupling of Allylic Alcohols with Free Indoles: Influence of the Metal Catalyst
  作者：Ying-Qi Xia、Chao Li、Man Liu、Lin Dong

  DOI：10.1002/chem.201706080

  日期：2018.4.11

  Versatile reactive activities of allyl alcohols with free indoles in C-H functionalization reactions were investigated. Direct alkylation or cascade cyclization reactions could be selectively controlled based on the catalyst system: Ru(PPh3 )3 Cl2 provided C3-substituted β-ketone indoles whereas [Ru(p-cymene)Cl2 ]2 yielded cyclized indoles.

  研究了烯丙醇与游离吲哚在CH功能化反应中的多种反应活性。可以基于催化剂体系选择性地控制直接烷基化或级联环化反应：Ru（PPh3）3Cl2提供C3取代的β-酮吲哚，而[Ru（p-cymene）Cl2] 2则产生环化吲哚。