3-propionyl-5-methylindole

• 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: 3-propionyl-5-methylindole
• 英文别名: 1-(5-methyl-1H-indol-3-yl)propan-1-one
• 化学式: C₁₂H₁₃NO
• 分子量: 187.241
• InChiKey: HKHBDLPMAPWSGX-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  14
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  32.9
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  5-甲基吲哚 、 丙酸酐 在 三氟化硼乙醚 作用下， 以 二氯甲烷 为溶剂， 以83 %的产率得到3-propionyl-5-methylindole
  参考文献：
  名称：

  三氟化硼醚酸盐促进吲哚与酸酐的区域选择性 3-酰化。

  摘要：

  报道了一种高效、高产且可扩展的程序，用于在温和条件下通过乙醚三氟化硼促进吲哚与酸酐的区域选择性 3-酰化。这种新颖的方案提供了一种分三步制备 3-(benzofuran-2-yl) 吲哚的简单方法。

  DOI：

  10.3390/molecules27238281

文献信息

• A Simple, Effective, Green Method for the Regioselective 3-Acylation of Unprotected Indoles
  作者：Phuong Tran、Hai Tran、Poul Hansen、Mai Do、Thach Le

  DOI：10.3390/molecules201019605

  日期：——

  A fast and green method is developed for regioselective acylation of indoles in the 3-position without the need for protection of the NH position. The method is based on Friedel-Crafts acylation using acid anhydrides. The method has been optimized, and Y(OTf)3 in catalytic amounts is found to be the best catalyst together with the commercially available ionic liquid [BMI]BF4 (1-butyl-3-methylimidazolium tetrafluoro-borate) as solvent. The reaction is completed in a very short time using monomode microwave irradiation. The catalyst can be reused up to four times without significant loss of activity. A range of substituted indoles are investigated as substrates, and thirteen new compounds have been synthesized.

  开发了一种快速且绿色方法，用于吲哚3-位选择性酰化而无需保护NH位置。该方法基于使用酸酐的Friedel-Crafts酰化反应。经过优化，发现使用催化量的Y(OTf)3和市售离子液体[BMI]BF4(1-丁基-3-甲基咪唑四氟硼酸盐)作为溶剂效果最佳。反应在单模微波辐射下非常短的时间内完成。该催化剂可重复使用多达四次而不会明显损失活性。研究了一系列取代吲哚作为底物，并合成了十三种新化合物。
• Brønsted acidic ionic liquid-promoted direct C3-acylation of <i>N</i>-unsubstituted indoles with acid anhydrides under microwave irradiation
  作者：Phuong Hoang Tran、Anh-Thanh Duy Nguyen、Hai Truong Nguyen、Thach Ngoc Le

  DOI：10.1039/c7ra11362e

  日期：——

  A green and efficient method for the synthesis of 3-acylindoles using a Brønsted acidic ionic liquid under microwave irradiation has been developed.

  使用布朗斯特酸性离子液体在微波辐射下合成3-酰基吲哚的一种绿色高效方法已经开发出来。
• An efficient and green method for regio- and chemo-selective Friedel–Crafts acylations using a deep eutectic solvent ([CholineCl][ZnCl₂]₃)
  作者：Phuong Hoang Tran、Hai Truong Nguyen、Poul Erik Hansen、Thach Ngoc Le

  DOI：10.1039/c6ra03551e

  日期：——

  and ZnCl2, has been used as a dual function catalyst and green solvent for the Friedel–Crafts acylation of aromatic compounds instead of using the moisture-sensitive Lewis acids and volatile organic solvents. The reactions are performed with high yields under microwave irradiation with short reaction times for the synthesis of ketones. Interestingly, indole derivatives are regioselectively acylated in

  [CholineCl] [ZnCl 2 ] 3是胆碱氯化物和ZnCl 2之间的一种深共晶溶剂，已被用作芳族化合物的Friedel-Crafts酰化的双功能催化剂和绿色溶剂，而不是使用对湿气敏感的路易斯酸挥发性有机溶剂。该反应在微波辐射下以短的反应时间以高产率进行，以合成酮。有趣的是，吲哚衍生物在温和条件下在3-位区域选择性地被酰化，具有高收率而没有NH保护。合成了三种新的酮产品。[胆碱Cl] [ZnCl 2 ] 3它是由氯化胆碱和氯化锌以低成本，易于纯化和对环境无害的化合物轻松合成的。[CholineCl] [ZnCl 2 ] 3最多可重复使用五次，而不会损失催化活性，使其成为工业过程中的理想选择。
• [EN] PEPTIDES<br/>[FR] PEPTIDES
  申请人：US GOV HEALTH & HUMAN SERV

  公开号：WO2004065411A2

  公开（公告）日：2004-08-05

  Disclosed are compounds which are tripeptides of the formula P-A-B-C or prodrugs thereof, wherein A is an amino acid having a carboxy alkyl group (e.g., carboxy C1-C6 alkyl group), B is tyrosine, phenylalanine, or a substituted tyrosine or phenylalanine, C is a hydrophobic amino acid, and P is an amine protecting group protecting the amine end of A. Also disclosed are pharmaceutical compositions comprising such a compound and a pharmaceutically acceptable carrier, and a method of treating an animal, e.g., a human, exposed to or infected by Yersihia pestis. The compounds find use as anti-bioterrorism agents.
• Boron Trifluoride Etherate Promoted Regioselective 3-Acylation of Indoles with Anhydrides
  作者：Yunyun Zheng、Jiuling Li、Kai Wei

  DOI：10.3390/molecules27238281

  日期：——

  An efficient, high-yielding and scalable procedure for the regioselective 3-acylation of indoles with anhydrides promoted by boron trifluoride etherate under mild conditions was reported. This novel protocol provided a simple way to prepare 3-(benzofuran-2-yl) indole in three steps.

  报道了一种高效、高产且可扩展的程序，用于在温和条件下通过乙醚三氟化硼促进吲哚与酸酐的区域选择性 3-酰化。这种新颖的方案提供了一种分三步制备 3-(benzofuran-2-yl) 吲哚的简单方法。