4-(1-p-tolylethoxy)-2H-chromen-2-one | 1198104-33-4

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 异戊烯醇脂质
• 英文名称: 4-(1-p-tolylethoxy)-2H-chromen-2-one
• 英文别名: 4-hydroxy-3-(1-(p-tolyl)ethyl)-2H-chromen-2-one；4-Hydroxy-3-[1-(4-methylphenyl)ethyl]chromen-2-one；4-hydroxy-3-[1-(4-methylphenyl)ethyl]chromen-2-one
• CAS: 1198104-33-4
• 化学式: C₁₈H₁₆O₃
• 分子量: 280.323
• InChiKey: PJYCIUKJTQZRBL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  21
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.17
• 拓扑面积：
  46.5
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  Alpha-甲基苯乙烯 、 4-羟基香豆素 在 4Bi⁽³⁺⁾*12CF₃O₃S^(1-)*H₂O 作用下， 以 硝基甲烷 为溶剂， 反应 5.0h， 以58%的产率得到4-(1-p-tolylethoxy)-2H-chromen-2-one
  参考文献：
  名称：

  Direct Catalytic Benzylation of Hydroxycoumarin - Efficient Synthesis of Warfarin Derivatives and Analogues

  摘要：

  已经开发出有效的金属催化4-羟基香豆素苄基化反应。使用少量廉价、无毒且稳定的催化剂，经过短时间反应后，获得了高产率的3-烷基化羟基香豆素。采用这种新方法，合成了两种广泛使用的抗凝剂苯普鲁孔和氟克洛络。

  DOI：

  10.1055/s-0029-1219936

文献信息

• Phase controlled synthesis of bifunctional TiO₂ nanocrystallites <i>via</i><scp>d</scp>-mannitol for dye-sensitized solar cells and heterogeneous catalysis
  作者：Abdullah M. Al-Enizi、T. A. J. Siddiqui、Shoyebmohamad F. Shaikh、Mohd Ubaidullah、Ayman Yousef、Rajaram S. Mane、Abu ul Hassan Sarwar Rana

  DOI：10.1039/d0ra01366h

  日期：——

  The crystal architecture of TiO₂ was successfully tailored via a low-temperature (≤200 °C) hydrothermal process in the presence of d-mannitol for feasible applications in dye-sensitized solar cells (DSSCs) and heterogeneous catalysis.

  TiO₂的晶体结构通过存在d-甘露醇的低温（≤200°C）水热过程成功调控，以便在染料敏化太阳能电池（DSSCs）和异质催化中进行可行应用。
• Fe(ClO4)3·×H2O-Catalyzed direct C–C bond forming reactions between secondary benzylic alcohols with different types of nucleophiles
  作者：Ponnaboina Thirupathi、Sung Soo Kim

  DOI：10.1016/j.tet.2010.02.063

  日期：2010.4

  mild and efficient Fe(ClO4)3·×H2O-catalyzed direct C–C bond coupling reactions of 1,3-dicarbonyl compounds, electron-rich arenes and heteroarenes and 4-hydroxycoumarin with secondary benzylic alcohols have been described. The benzylation of electron-rich arenes and heteroarenes leads to the synthesis of bis-symmetrical triarylmethanes. The present method is also applied to synthesis of an anti-coagulant

  已经描述了温和有效的Fe（ClO 4）3 ·×H 2 O催化的1,3-二羰基化合物，富电子芳烃和杂芳烃以及4-羟基香豆素与仲苄醇的直接C-C键偶联反应。富电子芳烃和杂芳烃的苄基化导致双对称三芳基甲烷的合成。本发明的方法也适用于合成一个的抗-coagulant化合物，4-羟基-3-（1,2,3,4-四氢萘-1-基）-2- ħ从市场上可买到的底物中得到-铬-2--2-酮（香豆基（B）），产率为85％。该协议的优点是范围广，条件温和，使用廉价的催化剂以及操作简便，因为水是唯一的副产品。
• Alkylation of 1,3-dicarbonyl compounds with benzylic and propargylic alcohols using Ir–Sn bimetallic catalyst: synthesis of fully decorated furans and pyrroles
  作者：Paresh Nath Chatterjee、Sujit Roy

  DOI：10.1016/j.tet.2011.04.092

  日期：2011.6

  The heterobimetallic complex [Ir(COD)(SnCl3)Cl(μ-Cl)]2 catalyzes the direct substitution of hydroxyl groups in benzylic and propargylic alcohols by 1,3-dicarbonyl moiety. In 4-hydroxycoumarin, benzylation and propargylation occurs at the 3-position. Selective propargylation or allenylation takes place depending on the nature of propargylic alcohol. By applying the methodology, multi-substituted furans

  杂双金属配合物[Ir（COD）（SnCl 3）Cl（μ-Cl）] 2催化苄醇和炔丙基醇中的羟基被1,3-二羰基部分直接取代。在4-羟基香豆素中，苄基化和炔丙基化发生在3-位。选择性炔丙基化或烯丙基化取决于炔丙醇的性质而发生。通过应用该方法，已经以高收率合成了多取代的呋喃和吡咯。
• Benzylation of β-dicarbonyl compounds and 4-hydroxycoumarin using TMSOTf catalyst: a simple, mild, and efficient method
  作者：Palani Theerthagiri、Appaswami Lalitha

  DOI：10.1016/j.tetlet.2010.08.019

  日期：2010.10

  The direct benzylation of 1,3-dicarbonyl compounds and 4-hydroxycoumarin with a wide variety of benzylic alcohols was achieved using trimethylsilyl trifluoromethanesulfonate as an efficient catalyst. The reaction proceeded under very mild conditions at room temperature providing the desired products in good to excellent yields.

  使用三甲基甲硅烷基三氟甲磺酸盐作为有效催化剂，可以用多种苄醇直接进行1,3-二羰基化合物和4-羟基香豆素的苄基化反应。反应在室温下在非常温和的条件下进行，以良好至优异的产率提供了所需的产物。
• HFIP Promoted C3 Alkylation of Lawsone and 4-Hydroxycoumarin with Alcohols by Dehydrative Cross-Coupling
  作者：Yixin Chen、Yurong Wang、Rong Zhong、Jinshan Li

  DOI：10.1021/acs.joc.0c01207

  日期：2020.8.21

  An environmentally benign system for the direct alkylation of lawsones and 4-hydroxycoumarins with alcohols in 1,1,1,3,3,3-hexafluoroisopropanol (HFIP) is reported. The reaction proceeded smoothly via a dehydrative cross-coupling process by utilizing the unique properties of HFIP. A variety of alkylated products and subsequent one-pot cyclized products (pyranonaphthoquinones and pyranocoumarins) could be obtained in 40-93% yields.