3-((4-ethylphenyl)ethynyl)oxazolidin-2-one | 1570146-76-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 英文名称: 3-((4-ethylphenyl)ethynyl)oxazolidin-2-one
• 英文别名: 3-((4-ethyllphenyl)ethylnyl)oxazolidin-2-one
• CAS: 1570146-76-7
• 化学式: C₁₃H₁₃NO₂
• 分子量: 215.252
• InChiKey: NDANNRPGOTUUQR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.01
• 重原子数：
  16.0
• 可旋转键数：
  1.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.31
• 拓扑面积：
  29.54
• 氢给体数：
  0.0
• 氢受体数：
  2.0

反应信息

• 作为反应物：
  描述：

  3-((4-ethylphenyl)ethynyl)oxazolidin-2-one 在 水 、 铜 、 Selectfluor 作用下， 以 乙腈 为溶剂， 反应 9.5h， 以60%的产率得到1-(4-ethylphenyl)-2-(2-oxooxazolidin-3-yl)ethane-1,2-dione
  参考文献：
  名称：

  A Combination of Copper(0) Powder and Selectfluor Enables Generation of Cationic Copper Species for Mild 1,2-Dicarbonylation of Alkynes

  摘要：

  A combination of copper powder and Selectfluor permits the generation of cationic copper species that efficiently catalyze 1,2-dicarbonylation of alkynes under mild conditions with water and dioxygen as inexpensive and environmentally benign sources of oxygen.

  DOI：

  10.1055/s-0033-1338983
• 作为产物：
  描述：

  4-乙基苯乙炔 在 N-溴代丁二酰亚胺(NBS) 、 1,10-菲罗啉 、 copper(ll) sulfate pentahydrate 、 potassium carbonate 、 silver nitrate 作用下， 以 丙酮 、 甲苯 为溶剂， 生成 3-((4-ethylphenyl)ethynyl)oxazolidin-2-one
  参考文献：
  名称：

  两相体系中具有卤化氢水溶液的α-卤代酰胺，乙烯基硫醚和乙烯基醚的高度区域选择性和立体选择性合成

  摘要：

  实现了使用HX（X = F，Cl，Br，I）水溶液的无金属区域和立体选择性方法，用于制备（E）构型的α-卤代酰胺，乙烯基硫醚和乙烯基醚组相容性和区域和立体选择性，温和条件，高效率和快速转化。另外，可通过光催化或在Sonogashira偶联条件下容易地由（E）-构型的α-卤代酰胺产生异构体。

  DOI：

  10.1021/acs.orglett.8b01809

文献信息

• Metal-Free [2 + 2 + 2] Cycloaddition of Ynamide–Nitriles with Ynamides: A Highly Regio- and Chemoselective Synthesis of δ-Carboline Derivatives
  作者：Hao Wen、Wei Cao、Yu Liu、Liang Wang、Ping Chen、Yu Tang

  DOI：10.1021/acs.joc.8b02112

  日期：2018.11.2

  A metal-free formal [2 + 2 + 2] cycloaddition of functionalized ynamide–nitriles with ynamides is disclosed which offers highly efficient access to polysubstituted δ-carboline derivatives under the mediation of TfOH. This strategy is highly regioselective and chemoselective and displays mild conditions, high yields, and efficiency (within 1 min) in addition to substrates scopes (56 examples).

  公开了官能化的乙酰胺腈与乙酰胺的无金属甲醛[2 + 2 + 2]环加成反应，在TfOH的介导下，可以高效地获得多取代的δ-咔啉衍生物。该策略具有很高的区域选择性和化学选择性，除了底物范围（56个例子）外，还显示出温和的条件，高产率和效率（1分钟内）。
• Rapid access to cyclopentadiene derivatives through gold-catalyzed cycloisomerization of ynamides with cyclopropenes by preferential activation of alkenes over alkynes
  作者：Xing Cheng、Lei Zhu、Meijun Lin、Jianxin Chen、Xueliang Huang

  DOI：10.1039/c7cc01368j

  日期：——

  Double bond activation: the current transformation represents a rare example of preferential activation of alkenes over alkynes under gold catalysis.

  双键活化：当前的转化是金催化下烯烃优先活化而不是炔烃的罕见例子。
• Gold-Catalyzed β-Regioselective Formal [3 + 2] Cycloaddition of Ynamides with Pyrido[1,2-<i>b</i>]indazoles: Reaction Development and Mechanistic Insights
  作者：Yinghua Yu、Gui Chen、Lei Zhu、Yun Liao、Yufeng Wu、Xueliang Huang

  DOI：10.1021/acs.joc.6b01948

  日期：2016.9.16

  Here, we report an unprecedented gold(I)-induced β-site regioselective formal [3 + 2] cycloaddition of ynamides with pyrido[1,2-b]indazoles, giving 3-amido-7-(pyrid-2′-yl)indoles in good to excellent yields. A complex of gold(I) catalyst with ynamide was isolated and characterized by X-ray diffraction analysis for the first time. Mechanistic investigations suggest the reaction pathway involves a gold-stabilized

  在这里，我们报道了前所未有的金（I）诱导的酰胺与吡啶并[1,2- b ]吲唑的金（I）诱导的β位区域选择性形式[3 + 2]环加成反应，得到3-酰胺基7-（吡啶-2'-基吲哚具有良好的优良收率。首次分离了金（I）催化剂与乙酰胺的配合物，并首次通过X射线衍射分析对其进行了表征。机理研究表明，该反应途径涉及金稳定的碳正离子中间体，该中间体依次参与了苯环邻位的连续C–H键功能化。
• Polysubstituted 2-Aminopyrrole Synthesis via Gold-Catalyzed Intermolecular Nitrene Transfer from Vinyl Azide to Ynamide: Reaction Scope and Mechanistic Insights
  作者：Yufeng Wu、Lei Zhu、Yinghua Yu、Xuesong Luo、Xueliang Huang

  DOI：10.1021/acs.joc.5b02057

  日期：2015.11.20

  A gold-catalyzed intermolecular reaction of Vinyl azides and ynamides is described: This process presents an efficient and mild approach to multisubstituted 2-arninopyrroles in good-to-excellent yields. Control experiments were carried out to distinguish the reactivity between vinyl azides and the corresponding 2H-azirines. A plausible reaction mechanism was also proposed according to previous reports and our preliminary mechanistic studies.