(E)-N,N-dimethyl-4-(4-methylstyryl)aniline | 2844-21-5

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 二苯乙烯类
• 英文名称: (E)-N,N-dimethyl-4-(4-methylstyryl)aniline
• 英文别名: N,N-dimethyl-4-[2-(4-methylphenyl)ethenyl]aniline；N,N-dimethyl-4-[(E)-2-(4-methylphenyl)ethenyl]aniline
• CAS: 2844-21-5
• 化学式: C₁₇H₁₉N
• 分子量: 237.345
• InChiKey: GAIASHRATFIFKI-CMDGGOBGSA-N

物化性质

• 熔点：
  163-165 °C
• 沸点：
  379.1±27.0 °C(Predicted)
• 密度：
  1.045±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  5.1
• 重原子数：
  18
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.18
• 拓扑面积：
  3.2
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  对甲基苯甲酸乙酯 在 sodium tetrahydroborate 、 正丁基锂 、 titanium(III) chloride 、 铜 、 锌 作用下， 以 乙醇 、 N,N-二甲基甲酰胺 为溶剂， 反应 0.5h， 生成 (E)-N,N-dimethyl-4-(4-methylstyryl)aniline
  参考文献：
  名称：

  Benzotriazole-Mediated Stereoselective Olefination of Carboxylic Esters:  Transformation of α-Amino Acid Esters into Chiral Allylamines

  摘要：

  Diastereoselective trans-olefinations of carboxylic esters 3a-h have been accomplished using benzylic or allylic benzotriazole derivatives la-e to prepare alpha-(benzotriazol-1-yl) ketones 4a-i, for the subsequent reduction of 4a-i, and finally for low-valent titanium-effected dehydroxybenzotriazolylation.(1) N-Protected alpha-amino acid esters 9a-c and 15 thus give allylamines 13a-e and 19 with virtually full retention of chirality. Mechanistic aspects of the dehydroxybenzotriazolylation are discussed.

  DOI：

  10.1021/jo971546f

文献信息

• An Efficient and General Method for the Heck and Buchwald–Hartwig Coupling Reactions of Aryl Chlorides
  作者：Dong-Hwan Lee、Abu Taher、Shahin Hossain、Myung-Jong Jin

  DOI：10.1021/ol202177k

  日期：2011.10.21

  The β-diketiminatophosphane Pd complex acted as a powerful catalyst for the Heck coupling of aryl chlorides with alkenes. Various aryl and heteroaryl chlorides were coupled efficiently under relatively mild conditions. Furthermore, this catalytic system also proved to be highly active in the Buchwald–Hartwig coupling of deactivated and sterically hindered aryl chlorides at room temperature.

  β-二酮基亚氨基膦Pd络合物可作为芳基氯化物与烯烃的Heck偶联的有力催化剂。在相对温和的条件下有效地偶联了各种芳基和杂芳基氯化物。此外，在室温下，这种催化体系在失活的和位阻的芳基氯化物的布赫瓦尔德-哈特维格偶联中也被证明具有很高的活性。
• Palladium-Catalyzed Mizoroki–Heck Reaction of Nitroarenes and Styrene Derivatives
  作者：Toshimasa Okita、Kitty K. Asahara、Kei Muto、Junichiro Yamaguchi

  DOI：10.1021/acs.orglett.0c00983

  日期：2020.4.17

  We have developed a Mizoroki–Heck reaction of nitroarenes with alkenes under palladium catalysis. The use of a Pd/BrettPhos catalyst promoted the alkenylation, whereas other catalysts led to a decrease in the product yield. In addition to nitroarenes, nitroheteroarenes were also applicable to the present reaction. The combination of a nucleophilic aromatic substitution (SNAr) with the denitrative alkenylation

  我们已经开发了钯催化下硝基芳烃与烯烃的Mizoroki-Heck反应。Pd / BrettPhos催化剂的使用促进了烯基化，而其他催化剂导致产物收率下降。除硝基芳烃外，硝基杂芳烃也适用于本反应。亲核芳族取代（S的组合Ñ AR）与denitrative烯基化产生在单罐操作的多官能化的芳烃。
• Nickel-Catalyzed System for the Cross-Coupling of Alkenyl Methyl Ethers with Grignard Reagents under Mild Conditions
  作者：Thomas Hostier、Zeina Neouchy、Vincent Ferey、Domingo Gomez Pardo、Janine Cossy

  DOI：10.1021/acs.orglett.8b00313

  日期：2018.4.6

  A nickel-catalyzed cross-coupling of alkenyl methyl ethers with Grignard reagents, under mild conditions, is described. These conditions allowed access to various stilbenes and heterocyclic stilbenic derivatives as well as to a potential anticancer agent DMU-212.

  描述了在温和条件下镍催化的链烯基甲基醚与格利雅试剂的交叉偶联。这些条件允许获得各种斯蒂芬烯和杂环斯蒂芬烯衍生物以及潜在的抗癌剂DMU-212。
• Effects of substituent and solvent on the UV absorption energy of 4,4′-disubstituted stilbenes
  作者：ChenZhong Cao、GuanFan Chen、YaXin Wu

  DOI：10.1007/s11426-011-4379-7

  日期：2011.11

  research results showed: the energy of UV absorption max wavelengths of 4,4′-disubstituted stilbenes was mainly affected by their intramolecular structure (substituent effect) in a given solvent, that is, the energy is dominated by both of excited-state substituent parameter σ CC ex and polar substituent constant σ p. While their energy was dominated by the substituent effect and solvent effect in different

  合成了25个4,4'-二取代衍生物的样品，在环己烷，乙醚，氯仿，乙腈和乙醇等10多种溶剂中测定了它们的最大紫外吸收波长，记录了242个实验数据。讨论了取代基和溶剂对其最大紫外吸收波长能量的影响。研究结果表明：在给定的溶剂中，4,4'-二取代的苯乙烯的最大吸收波长的能量主要受其分子内结构（取代作用）的影响，即该能量由两个激发态取代基决定参数σ CC前和极性取代基常数σ p 。在不同种类的溶剂中，它们的能量主要受取代基效应和溶剂效应的影响。建立了一个方程，该方程量化了4,4'-二取代的苯乙烯的最大吸收波长的紫外线能量。此外，发现在调节溶剂效应方面，正辛醇/水分配系数（log P）比溶剂变色染料（E T（30））更有效。使用参数log P的方程具有更好的相关性和更具体的物理意义。此外，通过得到的方程式预测了某些报道化合物的最大吸收紫外线能量，这与它们的实验值相符。
• Nickel-Catalyzed Cross-Coupling Reaction of Alkenyl Methyl Ethers with Aryl Boronic Esters
  作者：Toshiaki Shimasaki、Yuko Konno、Mamoru Tobisu、Naoto Chatani

  DOI：10.1021/ol901978e

  日期：2009.11.5

  The Ni(0)-catalyzed cross-coupling of alkenyl methyl ethers with boronic esters is described. Several types of alkenyl methyl ethers can be coupled with a wide range of boronic esters to give the stilbene derivatives.

  描述了Ni（0）催化的烯基甲基醚与硼酸酯的交叉偶联。几种类型的烯基甲基醚可以与各种硼酸酯偶联，得到二苯乙烯衍生物。