4-nitro-2-(prop-1-enyl)phenol | 103851-62-3

• 分子结构分类: 有机化合物 - 苯类化合物 - 酚类
• 英文名称: 4-nitro-2-(prop-1-enyl)phenol
• 英文别名: β-methyl-2-hydroxy-5-nitrostyrene；(E/Z)-4-nitro-2-(prop-1-enyl)phenol；4-nitro-2-propenylphenol；4-Nitro-2-(prop-1-en-1-yl)phenol；4-nitro-2-prop-1-enylphenol
• CAS: 103851-62-3
• 化学式: C₉H₉NO₃
• 分子量: 179.175
• InChiKey: FHMFFBJNEANCDK-UHFFFAOYSA-N

物化性质

• 沸点：
  332.8±35.0 °C(Predicted)
• 密度：
  1.273±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.4
• 重原子数：
  13
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.11
• 拓扑面积：
  66
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  4-nitro-2-(prop-1-enyl)phenol 在 RuCl2(1,3-dimesityl-imidazolidin-2-yl)(PCy3)(=CHPh) potassium carbonate 作用下， 以 丙酮 、 甲苯 为溶剂， 反应 1.0h， 生成 6-nitro-2H-chromene
  参考文献：
  名称：

  Ring-closing metathesis for the synthesis of 2H- and 4H-chromenes

  摘要：

  Six 4H-chromenes were synthesized from substituted phenols using vinylstannylation and ring-closing metathesis (RCM) as key steps. In addition, a different approach involving amongst other steps, an aryl allyl isomerization and RCM afforded a set of seven 2H-chromenes from phenolic precursors. (c) 2005 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2005.08.020
• 作为产物：
  描述：

  对硝基苯酚 在 [RuHCl(CO)(PPh₃)₃] potassium carbonate 作用下， 以 丙酮 、 甲苯 为溶剂， 反应 24.0h， 生成 4-nitro-2-(prop-1-enyl)phenol
  参考文献：
  名称：

  Ring-closing metathesis for the synthesis of 2H- and 4H-chromenes

  摘要：

  Six 4H-chromenes were synthesized from substituted phenols using vinylstannylation and ring-closing metathesis (RCM) as key steps. In addition, a different approach involving amongst other steps, an aryl allyl isomerization and RCM afforded a set of seven 2H-chromenes from phenolic precursors. (c) 2005 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2005.08.020

文献信息

• Rational Design and Evaluation of Upgraded Grubbs/Hoveyda Olefin Metathesis Catalysts: Polyfunctional Benzylidene Ethers on the Test Bench
  作者：Michał Bieniek、Cezary Samojłowicz、Volodymyr Sashuk、Robert Bujok、Paweł Śledź、Noël Lugan、Guy Lavigne、Dieter Arlt、Karol Grela

  DOI：10.1021/om200463u

  日期：2011.8.8

  the aromatic ring, were synthesized: (H2IMes)(Cl)2Ru═C(H)[(C6H3X)OR] (NE2 (69% yield), R = CH(Me)(C(O)OMe), X = NO2; KE2 (57% yield), R = CH(Me)(C(O)OMe), X = C(O)Me; KK2 (56% yield), R = CH2C(O)Me, X = C(O)Me). All these complexes were used as catalyst precursors in standard metathesis reactions and compared with commercial catalysts such as Grubbs II (G2), Grubbs/Hoveyda II (H2), and Nitro catalyst

  该系列升级格鲁布斯/加入Hoveyda第二代催化剂（H的2 IMES）（CL）2 Ru═C（H）（C 6 H ^ 4 OR）（E2（71％产率），R = CH（Me）的（C（ O）OMe）; M2（58％产率），R = CH（C（O）OMe）2 ; Kme2（88％产率），R = CH 2 C（O）Me; Ket2（63％产率），R = CH 2 C（O）Et）; 通过Grubbs第二代催化剂（H 2 IMes）（Cl）2 Ru（CHPh）（PCy 3）（G2）与Grubbs第二代催化剂的反应制备C2（58％收率），R = C（Me）CN。邻位取代的醚H（Me）C═CHC在CuCl作为膦清除剂的情况下，在6 H 4 OR中存在。这些配合物的X射线结构表明，作为亚苄基醚的末端取代基安装的酯，酮或丙二酸酯基的末端氧与金属配位，形成八面体结构。相反，复合物C2的腈基保持不配位。合成了甚至更复杂的
• In an Attempt to Provide a User's Guide to the Galaxy of Benzylidene, Alkoxybenzylidene, and Indenylidene Ruthenium Olefin Metathesis Catalysts
  作者：Michał Bieniek、Anna Michrowska、Dmitry L. Usanov、Karol Grela

  DOI：10.1002/chem.200701340

  日期：2008.1.18

  tested. Interestingly, attempts to force a reaction by increasing the catalyst loading were much less effective. Therefore, when possible, it is suggested that metathesis transformations should be carried out with a second-generation catalyst at 70 degrees C in toluene. However, different second-generation catalysts proved to be optimal for different applications and no single catalyst outperformed all others

  本文报道的数据表明，为给定的复分解反应选择合适的催化剂时必须格外小心。发现第一代催化剂可用于空间不受阻碍的底物的复分解反应。第二代催化剂（在优化条件下）对于不使用第一代配合物反应的空间位阻和吸电子基团（EWG）取代的烯烃表现出良好至优异的活性。在所有测试的反应中均观察到强烈的温度效应。有趣的是，试图通过增加催化剂负载来强迫反应的效果要差得多。因此，在可能的情况下，建议应使用第二代催化剂在70摄氏度的甲苯中进行复分解转化。然而，事实证明，不同的第二代催化剂对于不同的应用是最佳的，并且在所有情况下，没有任何一种催化剂能胜过所有其他催化剂。然而，可以从模型实验中得出一些经验规则，为选择最佳催化剂提供了初步提示。
• Synthesis and reactivity of oxygen chelated ruthenium carbene metathesis catalysts
  作者：Yiran Zhang、Mingbo Shao、Huizhu Zhang、Yuqing Li、Dongyu Liu、Yu Cheng、Guiyan Liu、Jianhui Wang

  DOI：10.1016/j.jorganchem.2014.01.017

  日期：2014.4

  and the terminal oxygen of the benzylidene ether are both coordinated to the metal to give an octahedral structure. However, the carbonyl oxygen of complexes (H2IMes)(Cl)2RuC(H)[(C6H3X)OCH(CH2C(O)OCH2)(X = H, OMe)] does not coordinate to the metal due to the steric effect of the lactone. All these complexes were used as catalysts for olefin metathesis reactions and all exhibited excellent performances

  Hoveyda催化剂的引发速率受作用于Ru O配位的电子和空间效应的影响。为了提高Hoveyda催化剂的活性，已经开发了一系列新型的含有N-杂环卡宾（NHC）和羰基的氧螯合钌卡宾复分解催化剂，并研究了它们对烯烃复分解反应的催化活性。配合物的脂肪族端基（H 2 IMes）（Cl）2 Ru C（H）[（C 6 H 3 X）OCH（Me）（C（O）OEt）（X = H，OMe，Me，NO 2）]通过连接直链酯进行官能化。复杂（H 2 IMes）（Cl）2的X射线结构Ru C（H）[（C 6 H 4）OCH（Me）（C（O）NMe 2）]显示酰胺的羰基氧和亚苄基醚的末端氧均与金属配位，得到八面体结构。但是，配合物（H 2 IMes）（Cl）2 Ru C（H）[（C 6 H 3 X）OCH（CH 2 C（O）OCH 2）（X = H，OMe）]由于内酯的空间效应不与金属配位。所有这些络合物均用作烯烃
• Chelating Ruthenium Phenolate Complexes: Synthesis, General Catalytic Activity, and Applications in Olefin Metathesis Polymerization
  作者：Anna Kozłowska、Maciej Dranka、Janusz Zachara、Eva Pump、Christian Slugovc、Krzysztof Skowerski、Karol Grela

  DOI：10.1002/chem.201403580

  日期：2014.10.20

  Cyclic Ru‐phenolates were synthesized, and these compounds were used as olefin metathesis catalysts. Investigation of their catalytic activity pointed out that, after activation with chemical agents, these catalysts promote ring‐closing metathesis (RCM), enyne and cross‐metathesis (CM) reactions, including butenolysis, with good results. Importantly, these latent catalysts are soluble in neat dicyclopentadiene

  合成了环状钌酚盐，并将这些化合物用作烯烃复分解催化剂。对它们的催化活性的研究表明，这些催化剂在用化学试剂活化后，能促进闭环复分解（RCM），烯炔和交叉复分解（CM）反应（包括丁烯醛分解），并取得了良好的效果。重要的是，这些潜在的催化剂可溶于纯净的二环戊二烯（DCPD），并在该单体的开环易位聚合反应（ROMP）中显示出良好的适用性。
• Advanced Fine-Tuning of Grubbs/Hoveyda Olefin Metathesis Catalysts:  A Further Step toward an Optimum Balance between Antinomic Properties
  作者：Michał Bieniek、Robert Bujok、Maciej Cabaj、Noël Lugan、Guy Lavigne、Dieter Arlt、Karol Grela

  DOI：10.1021/ja063186w

  日期：2006.10.1

  A 95% yield in the cross metathesis of acrylonitrile with a model olefin is achieved at 25 degrees C with only 3 mol % of the new air-stable ruthenium catalyst 1f shown in the enclosed structural diagram. Even more remarkable are the performances of its boosted version 1g incorporating an electron-withdrawing group. Both these new enhanced versions of Hoveyda catalyst are readily available from Grubbs second generation precatalyst upon reaction with a styrenyl ether the end group of which has been functionalized by an ester function. The latter acts as a weakly coordinating ligand allowing to reach a desirable balance between antinomic properties such as the catalyst's stability, a high activity for challenging substrates, and a high initiation rate.