(Z)-N,N-dimethyl-3-phenylacrylamide | 131214-20-5

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 肉桂酸及其衍生物
• 英文名称: (Z)-N,N-dimethyl-3-phenylacrylamide
• 英文别名: (Z)-N,N-dimethyl-3-phenylprop-2-enamide
• CAS: 131214-20-5
• 化学式: C₁₁H₁₃NO
• 分子量: 175.23
• InChiKey: AGTDAKUUKGHNCK-HJWRWDBZSA-N

物化性质

• 沸点：
  335.1±21.0 °C(Predicted)
• 密度：
  1.044±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.7
• 重原子数：
  13
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.18
• 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：

  (Z)-N,N-dimethyl-3-phenylacrylamide 以 二氯甲烷 为溶剂， 生成 2-丙烯酰胺,N,N-二甲基-3-苯基-,(2E)-
  参考文献：
  名称：

  Lewis-acid catalysis of photochemical reactions. 9. Structure and photoisomerization of (E)- and (Z)-cinnamamides and their Lewis acid complexes

  摘要：

  The spectroscopic properties and photoisomerization reactions of several (E)- and (Z)-cinnamamides have been investigated in the absence and presence of the strong Lewis acid BF3. The (E)-cinnamamides are essentially planar and exist predominantly in the enone s-cis conformation, except in the case of the alpha-methyl tertiary amide which adopts the s-trans conformation in order to minimize nonbonded repulsion. The (Z)-cinnamamides exist predominantly in the highly nonplanar s-trans conformation. This unusual conformational preference is attributed to intramolecular charge transfer from the aromatic to amide functionality. Photoisomerization efficiencies are dependent upon N-alkylation, aromatic substitution, alpha-alkylation, solvent, and excitation wavelength. These effects are attributed to the existence of two lowest energy pi,pi* singlet states (one reactive and one nonreactive) whose relative energies are dependent upon substitution. The cinnamamides from 1:1 complexes with BF3 with equilibrium constants > 10(3). Complexation alters both the electronic structure and photochemical behavior of the cinnamamides. Quantitative E --> Z isomerization has been observed for the BF3 complexes of two tertiary amides.

  DOI：

  10.1021/jo00002a015
• 作为产物：
  描述：

  2-丙烯酰胺,N,N-二甲基-3-苯基-,(2E)- 在 三氟化硼乙醚 作用下， 以 二氯甲烷 为溶剂， 生成 (Z)-N,N-dimethyl-3-phenylacrylamide
  参考文献：
  名称：

  锰 (I) 催化的 α,β-不饱和羰基衍生物的不对称氢化

  摘要：

  在这里，我们报告了使用手性 Mn(I) 络合物作为催化剂的 α,β-不饱和羰基衍生物的催化不对称氢膦化反应。通过 H-P 键激活，可以通过各种基于酮、酯和甲酰胺的迈克尔受体的氢膦化反应获得各种含膦的手性产物。

  DOI：

  10.1021/acs.orglett.2c04256

文献信息

• Direct Carbamoylation of Alkenyl Halides
  作者：Robert F. Cunico、Bikash C. Maity

  DOI：10.1021/ol030110l

  日期：2003.12.1

  Alkenyl chlorides and bromides are converted into tertiary enamides by treatment with a carbamoylsilane in toluene at 110 degrees C in the presence of phosphine-palladium(0) catalysts. [reaction: see text]

  在膦-钯（0）催化剂存在下，通过在甲苯中于110℃下用氨基甲酰基硅烷处理，将链烯基氯化物和溴化物转化为叔酰胺。[反应：看文字]
• CuCl₂-catalyzed highly stereoselective and chemoselective reduction of alkynyl amides into α,β-unsaturated amides using silanes as hydrogen donors
  作者：Lingfei Duan、Kai Jiang、Hua Zhu、Biaolin Yin

  DOI：10.1039/d0ob02037k

  日期：——

  CuH-catalyzed Z-selective partial reduction of alkynyl amides to afford α,β-unsaturated amides using silane as the hydrogen donor is developed. This reaction is carried out under mild conditions and able to accommodate a broad scope of alkynyl amides including those bearing a terminal carbon–carbon double bond or triple bond, affording alkenyl amides with high stereoselectivity and excellent yields.

  利用硅烷作为氢供体，开发了CuH催化的炔基酰胺的Z选择性部分还原，制得α，β-不饱和酰胺。该反应在温和的条件下进行，能够容纳广泛的炔基酰胺，包括带有末端碳-碳双键或三键的炔基酰胺，从而提供具有高立体选择性和优异收率的烯基酰胺。
• Rationally Designed Pincer-Type Heck Catalysts Bearing Aminophosphine Substituents: Pd^IVIntermediates and Palladium Nanoparticles
  作者：Jeanne L. Bolliger、Olivier Blacque、Christian M. Frech

  DOI：10.1002/chem.200800441

  日期：2008.9.8

  catalytic cycle of the Heck reaction, their general existence as reactive intermediates (for example, in other reactions) cannot be excluded. On the contrary, they were shown to be thermally accessible. Compounds 1 and 2 show a smooth halide exchange with bromobenzene to yield their bromo derivatives in DMF at 100 degrees C. Experimental observations revealed that the halide exchange most probably proceeded

  氨基膦基钳形配合物[C6H3-2,6-（XP（哌啶基）2）2Pd（Cl）]（X = NH 1; X = O 2）可以很容易地由廉价的起始原料通过依次添加1,1在“一锅”中，在N 2下，将'，1''-膦三基三哌啶和1,3-二氨基苯或间苯二酚制得[Pd（cod）（Cl）2]（cod =环辛二烯）在甲苯中的溶液。事实证明，化合物1和2是出色的Heck催化剂，可以在很短的反应时间和较低的催化剂负载量下，在140℃下将数种电子失活和空间位阻的芳基溴化物与各种烯烃作为偶联伴侣进行定量偶联。升高的反应温度还使得在仅0.01mol％的催化剂存在下，烯烃能够与电子失活的和位阻的芳基氯有效地偶联。进行的机理研究排除了均相的Pd 0配合物是1和2的催化活性形式。另一方面，钯纳米颗粒参与催化循环得到了有力的实验支持。即使衍生自1（和2）的钳型Pd IV中间体不参与Heck反应的催化循环，也不能排除它们作为反应性中
• Visible-Light-Enabled Oxidative Coupling of Alkenes with Dialkylformamides To Access Unsaturated Amides
  作者：Maojian Lu、Zhaowei Lin、Shanyi Chen、Hongyou Chen、Mingqiang Huang、Shunyou Cai

  DOI：10.1021/acs.orglett.9b03870

  日期：2019.12.20

  A practical and direct method for oxidative cross-coupling of alkenes with dialkylformamides is established employing visible-light-enabled photoredox catalysis. This strategy allows efficient access to diverse unsaturated amides under mild reaction conditions. The application of an appropriate diaryliodonium salt was demonstrated to be critical to the success of this process. This catalyst system

  建立了一种实用且直接的方法，利用可见光使能的光氧化还原催化作用，将烯烃与二烷基甲酰胺进行氧化交联。该策略允许在温和的反应条件下有效地获得各种不饱和酰胺。事实证明，适当的二芳基碘鎓盐的应用对于该方法的成功至关重要。该催化剂体系对各种有用的官能团具有良好的耐受性。
• Water as a Hydrogenating Agent: Stereodivergent Pd-Catalyzed Semihydrogenation of Alkynes
  作者：Chuan-Qi Zhao、Yue-Gang Chen、Hui Qiu、Lei Wei、Ping Fang、Tian-Sheng Mei

  DOI：10.1021/acs.orglett.9b00148

  日期：2019.3.1

  Palladium-catalyzed transfer semihydrogenation of alkynes using H2O as the hydrogen source and Mn as the reducing reagent is developed, affording cis- and trans-alkenes selectively under mild conditions. In addition, this method provides an efficient way to access various cis-1,2-dideuterioalkenes and trans-1,2-dideuterioalkenes by using D2O instead of H2O.

  开发了使用H 2 O作为氢源和Mn作为还原剂的钯催化炔烃转移半氢化反应，在温和条件下选择性提供了顺式和反式烯烃。此外，此方法通过使用D 2 O代替H 2 O提供了一种有效的方法来访问各种顺式-1,2-杂二烯基烯烃和反式-1,2-杂二烯基烯烃。