(E)-N,N-Diethyl-4-phenylpent-2-enamide | 302571-80-8

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: (E)-N,N-Diethyl-4-phenylpent-2-enamide
• CAS: 302571-80-8
• 化学式: C₁₅H₂₁NO
• 分子量: 231.338
• InChiKey: QKZQIXJDRYHIAP-VAWYXSNFSA-N

物化性质

• 沸点：
  377.8±21.0 °C(Predicted)
• 密度：
  0.977±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  17
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  20.3
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  (E)-N,N-Diethyl-4-phenylpent-2-enamide 在 samarium diiodide 、 重水 作用下， 以 四氢呋喃 为溶剂， 反应 0.5h， 生成 2,3-dideuterio-N,N-diethyl-4-phenylpentanamide
  参考文献：
  名称：

  二碘化sa促进的顺序消除-还原反应：合成2,3-二氘代子宫酸酯或-酰胺。

  摘要：

  由二碘化promote促进的简便且通用的顺序消除/还原过程提供了一种从容易获得的起始原料合成饱和酯或酰胺3的有效方法。该反应包括在存在H 2 O的情况下β-消除起始的2-卤代3-羟基酯或-酰胺1，随后1，4-还原所得的α，β-不饱和酯或酰胺。当使用D20代替H2O时，会分离到2,3-二氘代子宫酸酯或-酰胺4。提出了一种机制来解释这种综合。

  DOI：

  10.1002/1521-3765(20011001)7:19<4266::aid-chem4266>3.0.co;2-8
• 作为产物：
  描述：

  2-苯基丙醛 在 samarium diiodide 、 lithium diisopropyl amide 作用下， 以 四氢呋喃 、 乙醚 为溶剂， 反应 1.67h， 生成 (E)-N,N-Diethyl-4-phenylpent-2-enamide
  参考文献：
  名称：

  Synthesis of (E)-α,β-Unsaturated Amides with High Selectivity by Using Samarium Diiodide

  摘要：

  Stereoselective beta -elimination of 2-chloro-3-hydroxyamides 1 is achieved by using samarium diiodide to yield alpha,beta -unsaturated amides 2, in which the C=C bond is di- tri-, or tetrasubstituted. The starting compounds a are easily prepared by reaction of the corresponding lithium enolates of alpha -chloroamides with aldehydes or ketones at -78 degreesC. The influence of the reaction conditions and the structure of the starting compounds on the stereoselectivity of the beta -elimination reaction is also discussed.

  DOI：

  10.1002/1521-3765(20010716)7:14<3062::aid-chem3062>3.0.co;2-f

文献信息

• Iron-Catalyzed Regio- and Stereoselective Substitution of γ,δ-Epoxy-α,β-unsaturated Esters and Amides with Grignard Reagents
  作者：Takeshi Hata、Rie Bannai、Mamoru Otsuki、Hirokazu Urabe

  DOI：10.1021/ol100022w

  日期：2010.3.5

  When γ,δ-epoxy-α,β-unsaturated esters or amides were treated with 2 equiv of Grignard reagents in the presence of 10−24 mol % FeCl2, regio- and stereoselective substitution of the epoxide moiety with the Grignard reagent occurred to give exclusively δ-hydroxy-γ-alkyl or aryl-α,β-unsaturated esters or amides in good yields.

  当在10−24 mol％FeCl 2存在下用2当量的Grignard试剂处理γ，δ-环氧-α，β-不饱和酯或酰胺时，发生了用Grignard试剂对环氧部分进行区域和立体选择性取代仅以高收率得到δ-羟基-γ-烷基或芳基-α，β-不饱和酯或酰胺。
• Stereoselective Olefination Reactions Promoted by Rieke Manganese
  作者：José Concellón、Humberto Rodríguez-Solla、Vicente del Amo、Pamela Díaz

  DOI：10.1055/s-0029-1216880

  日期：2009.8

  applied to develop a novel and direct synthesis of (E)-α,β-unsaturated esters or amides and (Z)-α,β-unsaturated α-halo esters and α-choroamides through a Mn*-mediated sequential olefination protocol of aldehydes with dichloro esters or amides and trihalo esters or trichloroamides, respectively. manganese - elimination reactions - stereoselectivity - α,β-unsaturated esters - α,β-unsaturated amides - metalation

  提出了使用廉价的无毒金属锰进行立体选择性β-消除反应并促进醛的顺序烯化反应以获得α，β-不饱和酯和酰胺的优势的研究。使用活性锰（Mn *）作为金属化剂进行了各种消除反应，所有这些反应均具有完全的立体选择性和高收率的特征。锰的这种能力已被用于开发通过Mn *-直接合成（E）-α，β-不饱和酯或酰胺与（Z）-α，β-不饱和α-卤代酯和α-氯酰胺的新颖而直接的合成方法。介导的醛分别与二氯酯或酰胺和三卤代酯或三氯酰胺的顺序烯烃化方案。 锰-消除反应-立体选择性-α，β-不饱和酯-α，β-不饱和酰胺-金属化
• Very Rapid Preparation of SmI2 by Sonic Treatment of Iodoform and Metallic Samarium
  作者：José M. Concellón、Humberto Rodríguez-Solla、Eva Bardales、Mónica Huerta

  DOI：10.1002/ejoc.200210669

  日期：2003.5

  A very rapid preparation of SmI2 by sonication of a mixture of metallic samarium and iodoform in THF is described. To prove the synthetic applications of the obtained SmI2 several high-yielding reactions were carried out. Preliminary results for the generation of SmI2 in THF by sonication from diiodomethane, 1,2-diiodoethane, or iodine are also described. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451

  描述了通过在 THF 中对金属钐和碘仿的混合物进行超声处理来非常快速地制备 SmI2。为了证明所获得的 SmI2 的合成应用，进行了几个高产率反应。还描述了通过超声处理从二碘甲烷、1,2-二碘乙烷或碘在 THF 中生成 SmI2 的初步结果。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)
• Sequential Reactions Promoted by Manganese:  Completely Stereoselective Synthesis of (<i>E</i>)-α,β-Unsaturated Amides, Ketones, Aldehydes, and Carboxylic Acids
  作者：José M. Concellón、Humberto Rodríguez-Solla、Pamela Díaz

  DOI：10.1021/jo701417z

  日期：2007.10.1

  A complete E-selective synthesis of a,alpha,beta-unsaturated amides through a sequential reaction of a range of dichloroamides with a variety of aldehydes promoted by Rieke manganese (Mn*) is reported. A mechanism based on a sequential aldol-type reaction and a completely stereoselective beta-elimination is proposed to explain these results. The unsaturated amides obtained are readily and efficiently transformed into alpha,beta-unsaturated ketones, aldehydes, or carboxylic acids without loss of the diastereoisomeric purity of the C-C double bond.
• Synthesis of (E)-α,β-Unsaturated Esters and Amides with Total Selectivity Using Samarium Diiodide
  作者：José M. Concellón、Juan A. Pérez-Andrés、Humberto Rodríguez-Solla

  DOI：10.1002/1521-3773(20000804)39:15<2773::aid-anie2773>3.0.co;2-w

  日期：2000.8.4