(E)-4-(3-Bromo-4-methoxy-phenyl)-but-3-en-2-one | 1331560-65-6

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 肉桂酸及其衍生物
• 英文名称: (E)-4-(3-Bromo-4-methoxy-phenyl)-but-3-en-2-one
• 英文别名: 4-(3-Bromo-4-methoxyphenyl)but-3-en-2-one
• CAS: 1331560-65-6
• 化学式: C₁₁H₁₁BrO₂
• 分子量: 255.111
• InChiKey: AOVJTAMOQFOZJZ-UHFFFAOYSA-N

物化性质

• 沸点：
  369.1±32.0 °C(Predicted)
• 密度：
  1.384±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  14
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.18
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

安全信息

• 海关编码：
  2914700090

反应信息

• 作为反应物：
  描述：

  (E)-4-(3-Bromo-4-methoxy-phenyl)-but-3-en-2-one 在 2-pyrrolidinone hydrotribromide 、 potassium carbonate 作用下， 以 四氢呋喃 、 1,4-二氧六环 为溶剂， 反应 1.5h， 生成 3-O-[(E)-4-(3-bromo-4-methoxyphenyl)-2-oxobut-3-en-1-yl]kaempferol
  参考文献：
  名称：

  Synthesis and biological activity of novel tiliroside derivants

  摘要：

  A series of new tiliroside derivatives were synthesized and characterized by analytical H-1 NMR, C-13 NMR and mass spectrometry. All of the compounds were evaluated for anti-diabetic properties in vitro using HepG2 cells. Compounds 3c, 3d, and 3i-l caused significant enhancements in glucose consumption by insulin-resistant HepG2 cells compared with control cells and cells that were exposed to metformin (an anti-diabetic drug). Moreover, compound 3l significantly activated adenosine 5'-monophosphate-activated protein kinase activity and reduced acetyl-CoA carboxylase activity. Thus, the tiliroside derivative 3l offers potential to be developed as a new approach for treating type II diabetes. (C) 2011 Elsevier Masson SAS. All rights reserved.

  DOI：

  10.1016/j.ejmech.2011.07.059
• 作为产物：
  描述：

  3-溴-4-甲氧基苯甲醛 、 丙酮 在 sodium hydroxide 作用下， 生成 (E)-4-(3-Bromo-4-methoxy-phenyl)-but-3-en-2-one
  参考文献：
  名称：

  Synthesis of Quinolines and 2H-Dihydropyrroles by Nucleophilic Substitution at the Nitrogen Atom of Oxime Derivatives

  摘要：

  详细研究了肟衍生物的异构化，以探索O-取代肟的顺反异构化方法。基于这些发现，开发了从肟的立体异构体中简单制备氮杂环的方法。通过用三氟乙酸酐和四氯苯醌处理β-芳基酮肟，合成了喹啉。γ,δ-不饱和O-甲氧基乙酰肟在甲氧基乙酸的作用下转化为2H-二氢吡咯。

  DOI：

  10.1055/s-2003-42439

文献信息

• Synthesis of Quinolines and 2<i>H</i>-Dihydropyrroles by Nucleophilic Substitution at the Nitrogen Atom of Oxime Derivatives
  作者：Koichi Narasaka、Mitsuru Kitamura、Masayuki Yoshida、Takashi Kikuchi

  DOI：10.1055/s-2003-42439

  日期：——

  Isomerization of oxime derivatives was researched in detail to find out the methods for the syn-anti isomerization of O-substituted oximes. Based on these findings were developed simple methods for the preparation of aza-heterocycles from both stereo­isomers of oximes. Quinolines were synthesized from β-aryl ketone oximes by treatment with trifluoroacetic anhydride and 4-chloranil. γ,δ-Unsaturated O-methoxyacetyloximes were transformed to 2H-dihydropyrroles by reaction with methoxy-acetic acid.

  详细研究了肟衍生物的异构化，以探索O-取代肟的顺反异构化方法。基于这些发现，开发了从肟的立体异构体中简单制备氮杂环的方法。通过用三氟乙酸酐和四氯苯醌处理β-芳基酮肟，合成了喹啉。γ,δ-不饱和O-甲氧基乙酰肟在甲氧基乙酸的作用下转化为2H-二氢吡咯。
• Solvent Dependent Divergent Reactivity of Electron‐Rich Dienones with and without Visible Light: Access to Cyclopropanated Furans and Butenolides
  作者：Jayanta Saha、Indrajit Das

  DOI：10.1002/adsc.201901273

  日期：2020.2.6

  hexafluoroisopropanol (HFIP) as an additive promotes intramolecular radical cascade cyclization to afford cyclopropanated furans. Molecular dioxygen in the air serves as a redox catalyst in this reaction which is proposed to proceed through a radical cation intermediate generated by single‐electron transfer (SET) from a phototransient dienone to oxygen. By changing the solvent from isopropanol to HFIP

  在环境条件下，使用六氟异丙醇（HFIP）作为添加剂，可在异丙醇溶剂中对富电子二烯酮进行可见光激发，从而促进分子内自由基级联环化，生成环丙烷化呋喃。空气中的分子双氧在该反应中充当氧化还原催化剂，该反应被提议通过由光瞬变二烯酮到氧的单电子转移（SET）产生的自由基阳离子中间体进行。通过将溶剂从异丙醇更改为HFIP，通过涉及E → Z的离子级联环化，可独家形成取代的丁烯内酯异构化/内酯化/硫醇盐加成。假设HFIP充当介质，氢键供体催化剂以及路易斯酸的替代物。即使在不存在光的情况下也可以进行该反应，并且不需要催化剂或试剂。
• Synthesis and antibacterial evaluation of macrocyclic diarylheptanoid derivatives
  作者：Hao Lin、David F. Bruhn、Marcus M. Maddox、Aman P. Singh、Richard E. Lee、Dianqing Sun

  DOI：10.1016/j.bmcl.2016.06.075

  日期：2016.8

  public health. As such, new chemotype antibacterial agents are desperately needed to fuel and strengthen the antibacterial drug discovery and development pipeline. As part of our antibacterial research program to develop natural product-inspired new antibacterial agents, here we report synthesis, antibacterial evaluation, and structure-activity relationship studies of an extended chemical library of macrocyclic

  由结核分枝杆菌和其他有问题的细菌病原体引起的细菌感染继续对全球公共卫生构成重大威胁。因此，迫切需要新的化学型抗菌剂来补充和增强抗菌药物的发现和开发渠道。作为开发天然药物启发的新型抗菌剂的抗菌研究计划的一部分，我们在此报告对具有多种胺，酰胺，尿素和磺酰胺官能团的大环二芳基庚烷类化合物的扩展化学文库进行合成，抗菌评估和构效关系研究。这项研究的结果产生了大环香叶胺和4-氟苯乙胺取代的衍生物，对M的活性中等至良好。
• Synthesis and biological activity of novel tiliroside derivants
  作者：Nan Qin、Chun-Bao Li、Mei-Na Jin、Li-Huan Shi、Hong-Quan Duan、Wen-Yan Niu

  DOI：10.1016/j.ejmech.2011.07.059

  日期：2011.10

  A series of new tiliroside derivatives were synthesized and characterized by analytical H-1 NMR, C-13 NMR and mass spectrometry. All of the compounds were evaluated for anti-diabetic properties in vitro using HepG2 cells. Compounds 3c, 3d, and 3i-l caused significant enhancements in glucose consumption by insulin-resistant HepG2 cells compared with control cells and cells that were exposed to metformin (an anti-diabetic drug). Moreover, compound 3l significantly activated adenosine 5'-monophosphate-activated protein kinase activity and reduced acetyl-CoA carboxylase activity. Thus, the tiliroside derivative 3l offers potential to be developed as a new approach for treating type II diabetes. (C) 2011 Elsevier Masson SAS. All rights reserved.