4,4'-dimethoxy-3-nitro-1,1'-biphenyl | 157637-27-9

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 4,4'-dimethoxy-3-nitro-1,1'-biphenyl
• 英文别名: 1-Methoxy-4-(4-methoxyphenyl)-2-nitrobenzene
• CAS: 157637-27-9
• 化学式: C₁₄H₁₃NO₄
• 分子量: 259.262
• InChiKey: AQYOLTOCAOEGDY-UHFFFAOYSA-N

物化性质

• 熔点：
  121 °C
• 沸点：
  417.1±45.0 °C(Predicted)
• 密度：
  1.208±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.5
• 重原子数：
  19
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.14
• 拓扑面积：
  64.3
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  4,4'-dimethoxy-3-nitro-1,1'-biphenyl 在 四氯化碳 、 硝酸 作用下， 生成 4,4'-dimethoxy-3,3'-dinitro-biphenyl
  参考文献：
  名称：

  Tax-Aided Financial Services Companies and the Cost of Capital

  摘要：

  AbstractOver the past two decades, the governments of several European countries have implemented special tax devices to attract the finance centres of multinational companies. This paper determines how the cost of capital for investments made by multinationals is affected by the tax regimes, bringing into play the Irish financial services company, the Belgian co‐ordination centre, the Dutch finance company and the Luxemburg company coupled with a Swiss finance branch. It gives evidence that intermediation of a tax‐aided services company in the financing scheme of a foreign subsidiary provides an important tax saving. However, the home and source countries' tax regimes influence the hierarchy of the less heavily taxed treasury and finance centres. The methodology relies on the marginal effective tax rates theory and consists of an extension of Alworth's (1988) model to include treasury centres.

  DOI：

  10.1111/j.1475-5890.2000.tb00028.x
• 作为产物：
  描述：

  4,4-二甲氧基联苯 以85%的产率得到
  参考文献：
  名称：

  Rathore R., Bosch E., Kochi J. K., Tetrahedron, 50 (1994) N 23, S 6727- 6758

  摘要：

  DOI：

文献信息

• Selective nitration versus oxidative dealkylation of hydroquinone ethers with nitrogen dioxide
  作者：R. Rathore、E. Bosch、J.K. Kochi

  DOI：10.1016/s0040-4020(01)81329-6

  日期：1994.1

  Various alkyl-substituted p-dialkoxybenzenes (ArH) react readily with nitrogen dioxide (NO2) in dichloromethane solution via either nitration (ArNO2) or oxidative dealkylation to quinones (Q). Spectral transients indicate that these coupled processes from the dialkoxybenzene radical cation (ArH+·) formed as the common reactive intermediate from electron-transfer in the disproprtionated precursor [ArH

  各种烷基取代的对二烷氧基苯（ArH）可以通过硝化（ArNO 2）或氧化脱烷基化成醌（Q）与二氯甲烷溶液中的二氧化氮（NO 2）反应。光谱瞬变指示来自二烷氧基苯自由基阳离子这些耦合过程（ARH +·形成为从disproprtionated前体电子转移常见的反应中间体）ARH，NO + ] N0 3 - 。在快速的后续步骤中。ARH +·经历均裂耦合与NO 2（这会导致芳烃硝化）和NO的亲核攻击3 -（这导致氧化脱烷基）。这样，通过溶剂极性和添加的硝酸盐可以有效地调节硝化和氧化脱烷基之间的竞争。
• Single monodentate N-donor ligands versus multi-ligand analogues in Pd(II)-catalysed C–C coupling at reduced temperatures
  作者：Abiodun Omokehinde Eseola、Helmar Görls、Joseph Anthony Orighomisan Woods、Winfried Plass

  DOI：10.1016/j.poly.2020.114507

  日期：2020.5

  characterized and studied as N-stabilized precatalysts. Ligand donor strengths were spectroscopically estimated by protonation-deprotonation equilibria. The palladium(II) complexes were obtained in three coordination environments; (i) the mono-ligand complexes bearing trans-solvent co-ligands (PdL.acn and PdL.dmf), (ii) the chlorido-bridged dimers µ-(PdL)2 and (iii) the trans-bis-ligand PdL2 complexes

  摘要降低工作温度的部署在工业上是有益的，并且高效，基于膦的预催化剂的使用受到其高成本和难以获得的制备程序的限制。为了研究配位环境对降低温度下催化剂反应活性的影响，认为设计带有单个单齿N-供体配体的钯（II）配合物是必要的。因此，2-（噻吩-2-基）-1H-咪唑配体（1-8），2,4,5-三苯恶唑（9）和2-（1H-咪唑-2-基）的二氯钯（II）配合物吡啶（10）已被制备，结构表征并作为N稳定的预催化剂进行了研究。通过质子化-去质子化平衡在光谱上估计配体的供体强度。在三个配位环境中获得了钯（II）配合物。（i）带有反溶剂共配体的单配体配合物（PdL.acn和PdL.dmf），（ii）氯桥联的二聚体µ-（PdL）2和（iii）反双配体PdL2复合体。考虑到环境温度操作，相对于先前报道的N-稳定的钯预催化剂，单齿单配体配位设计获得的催化结果代表了温度和反应时间的改进。单配体预催化剂可在40°C的
• 2, 4-Pyrimidinediamines Useful In The Treatment Of Neoplastic Diseases, Inflammatory And Immune System Disorders
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  公开号：US20080132504A1

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  公开号：US20110098280A1

  公开（公告）日：2011-04-28

  Novel pyrimidine derivatives of formula I to processes for their production, their use as pharmaceuticals and to pharmaceutical compositions comprising them.

  I类新型嘧啶衍生物的制备方法，以及它们作为药物和药物组合物的用途。