1-(烯丙氧基)-3,5-二甲氧基苯 | 32977-06-3

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 1-(烯丙氧基)-3,5-二甲氧基苯
• 英文名称: 1-(allyloxy)-3,5-dimethoxybenzene
• 英文别名: Benzene, 1,3-dimethoxy-5-(2-propenyloxy)-；1,3-dimethoxy-5-prop-2-enoxybenzene
• CAS: 32977-06-3
• 化学式: C₁₁H₁₄O₃
• mdl: MFCD28009945
• 分子量: 194.23
• InChiKey: SWSDGWKXIOVJKJ-UHFFFAOYSA-N

物化性质

• 沸点：
  156-162 °C(Press: 18 Torr)
• 密度：
  1.024±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  14
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.272
• 拓扑面积：
  27.7
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  1-(烯丙氧基)-3,5-二甲氧基苯 在 Grubbs catalyst first generation 、 potassium tert-butylate 、 四丁基溴化铵 、 sodium hydroxide 作用下， 以 四氢呋喃 、 二氯甲烷 、 水 为溶剂， 反应 4.75h， 生成 4,6-dimethoxybenzofuran
  参考文献：
  名称：

  Synthetic Models Related to Methoxalen – CYP2A6 Interactions. Dimethoxybenzofuran Derivatives as Potent and Selective Inhibitors of CYP2A6

  摘要：

  The human CYP2A6 enzyme metabolizes several xenobiotics including nicotine, the addictive component in tobacco. Reduced activity of CYP2A6, either for genetic reasons or by administering inhibitors of CYP2A6, reduces tobacco smoking. The reported compound methoxalen had a potent inhibitory effect on activity of CYP2A6 with an IC50 value of 1.27 mu M. We selected methoxalen as a lead compound and prepared various dimethoxybenzofuran derivatives that have inhibitory effects on activity of human cytochrome P450 (CYP) 2A6. Synthetic benzofuran derivatives (3,6-dimethoxybenzofuran: IC50=1.92 mu M and 3,7-dimethoxybenzofuran: IC50=2.00 mu M) also exhibited comparable activities against CYP2A6 and were selective inhibitors of CYP2A6. These compounds can be used as lead compounds in the development of drugs for smoking reduction therapy.

  DOI：

  10.3987/com-13-12744
• 作为产物：
  描述：

  在 三苯基膦 、 tetrabutylammonium tricarbonylnitrosylferrate 作用下， 以 甲基叔丁基醚 为溶剂， 反应 24.0h， 以96%的产率得到1-(烯丙氧基)-3,5-二甲氧基苯
  参考文献：
  名称：

  区域选择性铁催化脱羧烯丙基醚化

  摘要：

  阴离子铁络合物以高收率催化酚类的脱羧烯丙基化反应，形成烯丙基醚。烯丙基化是区域选择性的而不是区域特异性的。这表明烯丙基化是通过π-烯丙基铁中间体进行的，与碳亲核试剂的相关烯丙基化相反，后者已提议通过σ-烯丙基络合物进行。最终，铁催化剂具有取代通常用于脱羧偶联的更昂贵的钯催化剂的潜力。

  DOI：

  10.1021/ol902291z

文献信息

• Specific <i>Z</i>-Selectivity in the Oxidative Isomerization of Allyl Ethers to Generate Geometrically Defined <i>Z</i>-Enol Ethers Using a Cobalt(II)(salen) Complex Catalyst
  作者：Guanxin Huang、Miaolin Ke、Yuan Tao、Fener Chen

  DOI：10.1021/acs.joc.0c00004

  日期：2020.4.17

  synthesis of the geometrically less stable Z-enol ethers is challenging. An efficient Z-selective oxidative isomerization process of allyl ethers catalyzed by a cobalt(II) (salen) complex using N-fluoro-2,4,6-trimethylpyridinium trifluoromethanesulfonate (Me3NFPY•OTf) as an oxidant has been developed. Thermodynamically less stable Z-enol ethers were prepared in excellent yields with high geometric control.

  烯醇醚的结构基序存在于许多高度氧化的生物活性天然产物和药物中。几何上不稳定的Z-烯醇醚的合成具有挑战性。已经开发出一种有效的Z-烯丙基醚（Zalen）配合物使用N-氟-2,4,6-三甲基吡啶三氟甲磺酸盐（Me3NFPY•OTf）作为氧化剂催化的烯丙基醚的Z选择氧化异构化方法。热力学稳定性较低的Z-烯醇醚以高收率和高几何控制制备。该方法还证明了在室温下控制二烯丙基醚的Z-选择性异构化反应的有效性。该催化体系提供了另一种途径来扩展烯丙基醚的传统还原异构化。
• Thermodynamic, spectroscopic, and density functional theory studies of allyl aryl and prop-1-enyl aryl ethers. Part 1. Thermodynamic data of isomerization
  作者：Esko Taskinen

  DOI：10.1039/b101837j

  日期：——

  A chemical equilibration study of the relative thermodynamic stabilities of seventy isomeric allyl aryl ethers (a) and (Z)-prop-1-enyl aryl ethers (b) in DMSO solution has been carried out. From the variation of the equilibrium constant with temperature the Gibbs energies, enthalpies, and entropies of isomerization at 298.15 K have been evaluated. Because of their low enthalpies, the (Z)-prop-1-enyl aryl ethers are strongly favored at equilibrium, the Gibbs energies of the a→b isomerization ranging from −12 to −23 kJ mol−1. The entropy contribution is negligible in most reactions, but occasionally small positive values less than +10 J K−1 mol−1 of the entropy of isomerization are found. The equilibration studies were also extended to involve two pairs of related isomeric ethers with a Me substituent on C(2) of the olefinic bond. The Me substituent was found to increase the relative thermodynamic stability of the allylic ethers by ca. 3.4 kJ mol−1.

  通过对70对异构化的烯丙基苯基醚（a）和（Z）-丙-1-烯基苯基醚（b）在DMSO溶液中的化学平衡研究，考察了它们相对热力学稳定性的变化。从平衡常数随温度的变化中，评估了在298.15 K下的异构化吉布斯自由能、焓和熵。由于其低焓值，（Z）-丙-1-烯基苯基醚在平衡状态下具有显著优势，a→b异构化的吉布斯自由能范围从-12至-23 kJ/mol。在大多数反应中，熵的贡献可以忽略不计，但偶尔会发现小于+10 J/K·mol的正值。平衡研究还扩展到涉及两对在烯键C(2)位置带有甲基取代基的相关异构化醚。甲基取代基可以增加烯丙基醚的相对热力学稳定性约3.4 kJ/mol。
• Selective Claisen rearrangement and iodination for the synthesis of polyoxygenated allyl phenol derivatives
  作者：Antonella Bochicchio、Rossella Cefola、Sabine Choppin、Françoise Colobert、Maria Antonietta Di Noia、Maria Funicello、Gilles Hanquet、Isabella Pisano、Simona Todisco、Lucia Chiummiento

  DOI：10.1016/j.tetlet.2016.07.079

  日期：2016.9

  Allyl aryl ethers and allyl phenol derivatives were prepared starting from commercial or synthetized phenols. Either Williamson reaction or Et2AlCl catalyzed Claisen rearrangement was performed to obtain the polyoxygenated molecules. The pivotal allyl phenols were then modified by methylation, iodocyclization or electrophilic aromatic iodination to afford the polyoxygenated derivatives in good to excellent

  从商业或合成的苯酚开始制备烯丙基芳基醚和烯丙基苯酚衍生物。进行威廉姆森反应或Et 2 AlCl催化的克莱森重排以获得多加氧分子。然后通过甲基化，碘环化或亲电子碘化碘化对枢轴烯丙基苯酚进行改性，从而以良好或优异的收率得到多氧化衍生物。此外，还研究了它们对革兰氏阳性和革兰氏阴性细菌的抗菌性能。
• Facile Construction of the Benzofuran and Chromene Ring Systems via Pd^II-Catalyzed Oxidative Cyclization
  作者：So Won Youn、Jeong Im Eom

  DOI：10.1021/ol051264z

  日期：2005.7.1

  text]. We herein report the development of one-pot procedures for the conversion of allyl aryl ethers to 2-methylbenzofurans (via sequential Claisen rearrangement and oxidative cyclization) and for the conversion of aryl homoallyl ethers to chromenes (via direct oxidative cyclization). It is likely that both reactions proceed via a common Pd-catalyzed pathway involving olefin activation, nucleophilic

  [反应：请参见文字]。我们在本文中报道了一锅法的发展，该方法用于将烯丙基芳基醚转化为2-甲基苯并呋喃（通过顺序的克莱森重排和氧化环化）和用于将芳基高烯丙基醚转化为苯甲基（通过直接氧化环化）。这两种反应都有可能通过常见的Pd催化途径进行，涉及烯烃活化，亲核攻击和β-氢化物消除。
• Photoinduced oxidative activation of electron-rich arenes: alkenylation with H₂ evolution under external oxidant-free conditions
  作者：Xia Hu、Guoting Zhang、Faxiang Bu、Xu Luo、Kebing Yi、Heng Zhang、Aiwen Lei

  DOI：10.1039/c7sc04634k

  日期：——

  An external oxidant-free cross-coupling of electron-rich arenes and styrenes was enabled by a dual photoredox-cobaloxime catalytic system.

  一个双光氧化还原-钴络合物催化系统实现了对富电子芳烃和苯乙烯的外部氧化剂自由交叉偶联。

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