(E)-N,N-dimethyl-3-(p-tolyl)acrylamide | 34909-37-0

• 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: (E)-N,N-dimethyl-3-(p-tolyl)acrylamide
• 英文别名: N,N-dimethyl-3-(4-methylphenyl)prop-2-enamide；(E)-N,N-dimethyl-3-(4-methylphenyl)prop-2-enamide
• CAS: 34909-37-0
• 化学式: C₁₂H₁₅NO
• 分子量: 189.257
• InChiKey: SQUAGIDAZXTAJS-CMDGGOBGSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  14
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.25
• 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-dimethyl-3-(p-tolyl)acrylamide 在 叔丁基过氧化氢 叠氮基三甲基硅烷 、 三苯胂氧化物 、 S-1,1'-联-2-萘酚 、 samarium(III) isopropoxide 作用下， 以 四氢呋喃 、 癸烷 为溶剂， 反应 14.0h， 生成 (2R,3R)-3-azido-2-hydroxy-N,N-dimethyl-3-(4-methylphenyl)propanamide
  参考文献：
  名称：

  Dynamic Ligand Exchange of the Lanthanide Complex Leading to Structural and Functional Transformation:  One-Pot Sequential Catalytic Asymmetric Epoxidation-Regioselective Epoxide-Opening Process

  摘要：

  The characteristic property of the lanthanide complex, which easily undergoes a dynamic ligand exchange and alters its structure and function in situ, is described. After the completion of the catalytic asymmetric epoxidation of various a,beta-unsaturated amides 2 in the presence of the Sm-(S)-BINOL-Ph3As=O (1:1:1) complex 1 (2-10 mol %), the addition of Me3SiN3 directly to the reaction mixture led to smooth epoxide-opening at room temperature, affording the corresponding anti-beta-azido-alpha-hydroxyamide 4 in excellent overall yield (up to 99%) with complete regioselectivity and excellent enantiomeric excess (up to >99%). The key to the success of the sequential process was the in situ generation of the highly reactive samarium azide complex through dynamic ligand exchange. In situ IR spectroscopy and other experiments provided strong evidence that the samariurn azide complex was generated. In addition, the relatively high Lewis basicity of the amide moiety had a key role in the high reactivity of both the epoxidation and the epoxide-opening reactions. Examinations of other nucleophiles such as sulfur or carbon nucleophiles as well as transformations of epoxide-opened products are also described.

  DOI：

  10.1021/ja043770+
• 作为产物：
  描述：

  在 三乙胺 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 36.0h， 以92%的产率得到(E)-N,N-dimethyl-3-(p-tolyl)acrylamide
  参考文献：
  名称：

  竞争性的，与底物有关的1,2-二溴化物与三乙胺的还原性脱溴/脱氢溴化反应

  摘要：

  研究了各种1,2-二溴化物与NEt 3在不同条件下（分别为THF和DMF）在不同温度下的相互作用。这些反应的结果表明，依赖底物的脱氢溴化与还原性脱溴竞争。提供了关于这些竞争途径的全面讨论。

  DOI：

  10.1016/j.tetlet.2017.04.024

文献信息

• Palladium-Catalyzed Decarbonylative Heck Coupling of Aromatic Carboxylic Acids with Terminal Alkenes
  作者：Wenqing Yu、Long Liu、Tianzeng Huang、Xiangbing Zhou、Tieqiao Chen

  DOI：10.1021/acs.orglett.0c02462

  日期：2020.9.18

  decarbonylative alkenylation of aromatic carboxylic acids was developed. Under the reaction conditions, various benzoic acids including those bearing functional groups coupled to terminal alkenes, producing the corresponding internal alkenes in good to high yields. Cinnamic acids and bioactive benzoic acids such as 3-methylflavone-8-carboxylic acid, probenecid, adapalin, and febuxostat were also applicable to this

  开发了钯催化的芳族羧酸的脱羰链烯基化反应。在反应条件下，包括带有官能团的那些苯甲酸在内的各种苯甲酸与末端烯烃偶联，以高至高收率生产相应的内部烯烃。肉桂酸和生物活性苯甲酸，例如3-甲基黄酮-8-羧酸，丙磺舒，阿达帕林和非布索坦也适用于该反应，证明了该新反应在有机合成中的潜在合成价值。
• Oxidative coupling of alkenes with amides using peroxides: selective amide C(sp³)–H versus C(sp²)–H functionalization
  作者：Xu-Heng Yang、Wen-Ting Wei、Hai-Bing Li、Ren-Jie Song、Jin-Heng Li

  DOI：10.1039/c4cc05051g

  日期：——

  described, in which mono- and difunctionalization of alkenes are selectively achieved. In this reaction with amides, the chemoselectivity toward the functionalization of the C(sp(3))-H bonds adjacent to the nitrogen atom or the functionalization of the carbonyl C(sp(2))-H bonds across alkenes relies on the reaction conditions.

  描述了使用过氧化物的未活化的末端烯烃与酰胺的新的氧化偶联，其中选择性地实现了烯烃的单官能化和双官能化。在与酰胺的反应中，对邻近氮原子的C（sp（3））-H键的官能化或整个烯烃上的羰基C（sp（2））-H键的化学选择性依赖于反应情况。
• Ni-Catalyzed α-Alkylation of Unactivated Amides and Esters with Alcohols by Hydrogen Auto-Transfer Strategy
  作者：Siba P. Midya、Jagannath Rana、Jayaraman Pitchaimani、Avanashiappan Nandakumar、Vedichi Madhu、Ekambaram Balaraman

  DOI：10.1002/cssc.201801443

  日期：2018.11.23

  A transition‐metal‐catalyzed borrowing hydrogen/hydrogen auto‐transfer strategy allows the utilization of feedstock alcohols as an alkylating partner, which avoids the formation of stoichiometric salt waste and enables a direct and benign approach for the construction of C‐N and C−C bonds. In this study, a nickel‐catalyzed α‐alkylation of unactivated amides and ester (tert‐butyl acetate) is carried

  过渡金属催化借用的氢/氢自动转移策略允许将原料醇用作烷基化伙伴，从而避免了化学计量盐废物的形成，并为C-N和C-的构建提供了直接而良性的方法C键。在这项研究中，在温和条件下使用伯醇对镍进行了未活化的酰胺和酯（乙酸叔丁酯）的镍催化的α-烷基化反应。这种C-C键形成反应由一种新的分子定义的镍（II）NNN-钳形配合物（0.1-1 mol％）催化，并通过氢自动转移进行，从而释放出水作为唯一的副产物。此外，还证明了在Ni催化条件下环状酰胺的N烷基化作用。
• Visible-light-promoted oxidation/condensation of benzyl alcohols with dialkylacetamides to cinnamides
  作者：Tianlong Yang、Maojian Lu、Zhaowei Lin、Mingqiang Huang、Shunyou Cai

  DOI：10.1039/c8ob02938e

  日期：——

  Oxidative cross-coupling reactions of benzyl alcohols with N,N-dialkylacetamides were developed only employing oxygen as the terminal oxidant, efficiently providing a new, novel protocol for the construction of multifunctionalized cinnamides with the synergistic effects of KOH, organic photocatalyst eosin Y, and visible light irradiation at room temperature. A broad substrate scope and mild reaction

  仅使用氧气作为末端氧化剂，即可开发出苄醇与N，N-二烷基乙酰胺的氧化交叉偶联反应，从而有效地为构造具有KOH，有机光催化剂曙红Y和HOH协同作用的多功能肉桂酸酯提供了新颖的新方案。在室温下可见光照射。广泛的底物范围和温和的反应条件是该转化的突出特征。
• Efficient Palladium(II) Catalysis under Air. Base-Free Oxidative Heck Reactions at Room Temperature or with Microwave Heating
  作者：Jonas Lindh、Per-Anders Enquist、Åke Pilotti、Peter Nilsson、Mats Larhed

  DOI：10.1021/jo701434s

  日期：2007.10.1

  limitations of the base-free oxidative Heck reaction with arylboronic acids have been explored. Under our conditions, the dmphen−palladium(II)-catalyzed arylation proceeded with air or p-benzoquinone as reoxidants of palladium(0). We found that ambient temperature and mild aerobic conditions allow for the use of substrates sensitive to palladium(II)-catalyzed oxidation. Oxidative Heck couplings, employing

  已经探索了与芳基硼酸的无碱氧化Heck反应的范围和局限性。在我们的条件下，dmphen-钯（II）催化的芳基化反应以空气或对苯醌作为钯（0）的再氧化剂进行。我们发现环境温度和温和的好氧条件允许使用对钯（II）催化的氧化敏感的底物。使用不同的芳基硼酸的氧化性Heck偶联可与富电子和贫电子的烯烃平稳地进行区域选择性反应，即使使用二取代的甲基丙烯酸丁酯，敏感的丙烯醛和乙烯基硼酸酯，也能提供高收率。在小规模和50 mmol规模的批处理过程中，受控的微波处理都可将反应时间从数小时缩短至数分钟。