N-(3-phenylprop-2-yn-1-yl)acetamide | 71616-35-8

• 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: N-(3-phenylprop-2-yn-1-yl)acetamide
• 英文别名: N-(3-phenylprop-2-ynyl)acetamide
• CAS: 71616-35-8
• 化学式: C₁₁H₁₁NO
• mdl: MFCD24389750
• 分子量: 173.214
• InChiKey: MEDMJWLHQZDCBX-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  13
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.181
• 拓扑面积：
  29.1
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  N-(3-phenylprop-2-yn-1-yl)acetamide 在 吡啶 、 sodium hydroxide 、 nitrosonium tetrafluoroborate 作用下， 以 乙醚 、 乙醇 为溶剂， 反应 1.0h， 生成 1-(1-ethoxyprop-2-ynyl)benzene
  参考文献：
  名称：

  Carbene-Carbene Interconversion between 1- and 3-Phenyl-2-propynylidenes

  摘要：

  1-Phenyl-3-diazopropyne (Id) and 3-phenyl-3-diazopropyne (2d) were prepared and photolyzed under various conditions. In ethanol at ambient temperatures, both 1d and 2d gave a 1:10 +/- 1 mixture of 1-phenyl-3-ethoxypropyne (3) and 3-phenyl-3-ethoxypropyne (4). The photolyses of matrix-isolated 1d and 2d at cryogenic temperatures were followed by EPR, IR, and UV-visible spectroscopy. EPR experiments in 2-methyltetrahydrofuran (MTHF), isopentane, and ethanol-d(6) matrices at 9 K showed spectra due to a mixture of the corresponding triplet carbenes 1c (\D/hc\ = 0.543 and \E/hc\ = 0.003 cm(-1)) and 2c (\D/hc\ = 0.526 and \E/hc\ = 0.010 cm(-1)). The ratio of the generated carbenes carried the memory of the starting diazo compounds; 1c and 2c were produced mainly from 1d and 2d, respectively. Carbene 2c isomerized to 1c at 70-90 K in MTHF and ethanol-d(6) and at 44-68 K in isopentane, indicating that 1c was thermodynamically more stable than 2c on the triplet ground-state potential energy surface. IR and UV-visible absorption experiments employing various media (argon, isopentane, N-2, CO/Ar, O-2/N-2, and O-2/Ar) revealed that the photolysis of 2d afforded mostly absorptions due to 2c. Photolysis of 1d produced similar spectra, due mainly to 2c, together with weak absorptions due to 1c. The different results observed in EPR and IR experiments were explained by the difference in the matrices in which the diazo groups were photolyzed. Calculations at the ab initio MP2/DZV(d) level of theory showed that the triplet ground state of 1c was more thermodynamically stable than 2c by 1.41 kcal/mol, in agreement with the experimental results. The situation is reversed in the singlet manifold, where 2c was computed to be much lower in energy than 1c. The energy differences (Delta E(ST)) between the singlet and triplet states were computed to be 15.7 and 11.0 kcal/mol for 1c and 2c, respectively, with the DZV(d) basis set.

  DOI：

  10.1021/ja00093a017
• 作为产物：
  描述：

  苯乙炔 在 ammonium cerium (IV) nitrate 、 4,4'-二氯二苯甲酮 、 sodium iodide 作用下， 以 乙腈 为溶剂， 反应 18.75h， 生成 N-(3-phenylprop-2-yn-1-yl)acetamide
  参考文献：
  名称：

  通过光催化实现的醚和酰胺的自由基C（sp 3）–H烯基化，炔基化和烯丙基化

  摘要：

  开发了一种有效的自由基加成/消除反应，该反应能够在绿色反应条件下将烯基，炔基和烯丙基官能团选择性地掺入C（sp 3）–H键中。该过程基于在家用荧光灯的存在下，通过催化量的醚/酰胺的C（sp 3）-H键与催化量的二芳基酮的均质活化，催化形成α-烷氧基/α-ami基自由基。。这种简单的反应方案具有良好的官能团耐受性，可扩展性，方便的试剂和操作系统。该方法的合成应用已通过天然产物和不同有价值的合成酮的制备得到证明。

  DOI：

  10.1039/c7gc00840f

文献信息

• Ru(II)‐Catalyzed Regioselective Hydroarylative Coupling of Indolines with Internal Alkynes by C−H Activation
  作者：Raziullah、Mohit Kumar、Afsar Ali Khan、Himangsu Sekhar Dutta、Ashfaq Ahmad、Jayanti Vaishnav、Ruchir Kant、Ravi Sankar Ampapathi、Dipankar Koley

  DOI：10.1002/ejoc.202100085

  日期：2021.4.15

  A hydroarylative coupling of internal alkynes with indolines and tetrahydroquinolines has been developed using the bench‐stable and inexpensive ruthenium (II) catalyst. The applicability of this methodology has been demonstrated by the late stage functionalization of natural products, biologically active molecules, and APIs.

  使用稳定且廉价的钌（II）催化剂开发了内部炔烃与二氢吲哚和四氢喹啉的加氢芳基化偶联剂。天然产物，生物活性分子和API的后期功能化已证明了该方法的适用性。
• The<i>Sonogashira</i>Coupling of Polymer-Supported Propargylamine with Aryl Iodides
  作者：Tuomo Leikoski、Sirkku Kallonen、Jari Yli-Kauhaluoma

  DOI：10.1002/hlca.200900129

  日期：2010.1

  The Sonogashira coupling reaction of polymer‐supported propargylamine (=prop‐2‐yn‐1‐amine) with aryl iodides in the presence of the [Pd(PPh3)2]Cl2/CuI catalyst system produces 3‐arylprop‐1‐yn‐1‐amines smoothly at room temperature (Scheme). When propargylamine is attached on Wang resin through a carbamate linker, the common problems with amino functionality in palladium‐catalyzed couplings are overcome

  在[Pd（PPh 3）2 ] Cl 2 / CuI催化剂体系存在下，聚合物负载的炔丙胺（= prop-2-yn-1-胺）与芳基碘的Sonogashira偶联反应产生3-芳基prop-1- yn-1-胺在室温下平稳（方案）。当炔丙胺通过氨基甲酸酯连接基连接到Wang树脂上时，钯催化偶联剂中氨基官能团的常见问题得以克服。芳基丙炔胺与CF 3一起从聚合物上裂解下来COOH转化成色谱上易于分离的乙酰胺。我们的固相方法为药理学上令人感兴趣的芳基丙炔胺和芳基丙胺的前体开辟了一条新途径。
• Rhodium-Catalyzed Selective Nucleophilic Cyclization/Cross-Coupling of Two <i>ortho</i>-Alkynylanilines Bearing Differential <i>N</i>-Substituents
  作者：Jin-Chen Li、Bing-Xia Yan、Gang Wang、Zhi-Shi Ye

  DOI：10.1021/acs.orglett.3c02180

  日期：2023.8.11
• Carbene-Carbene Interconversion between 1- and 3-Phenyl-2-propynylidenes
  作者：Masaki Noro、Takeshi Masuda、Andrew S. Ichimura、Noboru Koga、Hiizu Iwamura

  DOI：10.1021/ja00093a017

  日期：1994.7

  1-Phenyl-3-diazopropyne (Id) and 3-phenyl-3-diazopropyne (2d) were prepared and photolyzed under various conditions. In ethanol at ambient temperatures, both 1d and 2d gave a 1:10 +/- 1 mixture of 1-phenyl-3-ethoxypropyne (3) and 3-phenyl-3-ethoxypropyne (4). The photolyses of matrix-isolated 1d and 2d at cryogenic temperatures were followed by EPR, IR, and UV-visible spectroscopy. EPR experiments in 2-methyltetrahydrofuran (MTHF), isopentane, and ethanol-d(6) matrices at 9 K showed spectra due to a mixture of the corresponding triplet carbenes 1c (\D/hc\ = 0.543 and \E/hc\ = 0.003 cm(-1)) and 2c (\D/hc\ = 0.526 and \E/hc\ = 0.010 cm(-1)). The ratio of the generated carbenes carried the memory of the starting diazo compounds; 1c and 2c were produced mainly from 1d and 2d, respectively. Carbene 2c isomerized to 1c at 70-90 K in MTHF and ethanol-d(6) and at 44-68 K in isopentane, indicating that 1c was thermodynamically more stable than 2c on the triplet ground-state potential energy surface. IR and UV-visible absorption experiments employing various media (argon, isopentane, N-2, CO/Ar, O-2/N-2, and O-2/Ar) revealed that the photolysis of 2d afforded mostly absorptions due to 2c. Photolysis of 1d produced similar spectra, due mainly to 2c, together with weak absorptions due to 1c. The different results observed in EPR and IR experiments were explained by the difference in the matrices in which the diazo groups were photolyzed. Calculations at the ab initio MP2/DZV(d) level of theory showed that the triplet ground state of 1c was more thermodynamically stable than 2c by 1.41 kcal/mol, in agreement with the experimental results. The situation is reversed in the singlet manifold, where 2c was computed to be much lower in energy than 1c. The energy differences (Delta E(ST)) between the singlet and triplet states were computed to be 15.7 and 11.0 kcal/mol for 1c and 2c, respectively, with the DZV(d) basis set.
• Radical C(sp³)–H alkenylation, alkynylation and allylation of ethers and amides enabled by photocatalysis
  作者：Subhasis Paul、Joyram Guin

  DOI：10.1039/c7gc00840f

  日期：——

  enables selective incorporation of alkenyl, alkynyl and allyl functional groups into the C(sp3)–H bond under green reaction conditions is developed. The process is based on the catalytic formation of α-alkoxyl/α-amidyl radicals via the homolytic activation of the C(sp3)–H bond of ethers/amides with a catalytic amount of diarylketone in the presence of a household fluorescent light bulb. This simple reaction

  开发了一种有效的自由基加成/消除反应，该反应能够在绿色反应条件下将烯基，炔基和烯丙基官能团选择性地掺入C（sp 3）–H键中。该过程基于在家用荧光灯的存在下，通过催化量的醚/酰胺的C（sp 3）-H键与催化量的二芳基酮的均质活化，催化形成α-烷氧基/α-ami基自由基。。这种简单的反应方案具有良好的官能团耐受性，可扩展性，方便的试剂和操作系统。该方法的合成应用已通过天然产物和不同有价值的合成酮的制备得到证明。