tert-butyl 3-(4-methoxyphenyl)propiolate | 1051853-01-0

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚醚
• 英文名称: tert-butyl 3-(4-methoxyphenyl)propiolate
• 英文别名: Tert-butyl 3-(4-methoxyphenyl)prop-2-ynoate
• CAS: 1051853-01-0
• 化学式: C₁₄H₁₆O₃
• 分子量: 232.279
• InChiKey: HZRMFMIDQXKGHF-UHFFFAOYSA-N

物化性质

• 沸点：
  325.3±25.0 °C(Predicted)
• 密度：
  1.08±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  17
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  35.5
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  tert-butyl 3-(4-methoxyphenyl)propiolate 在 甲酸 作用下， 反应 1.0h， 以70%的产率得到3-(4-甲氧基苯基)丙酸
  参考文献：
  名称：

  Synthesis and structure–activity relationships of phenyl-substituted coumarins with anti-tubercular activity that target FadD32

  摘要：

  In an effort to develop new and potent agents for therapy against tuberculosis, a high-throughput screen was performed against Mycobacterium tuberculosis strain H37Rv. Two 6-aryl-5,7-dimethyl-4-phenylcoumarin compounds 1a and 1b were found with modest activity. A series of coumarin derivatives were synthesized to improve potency and to investigate the structure-activity relationship of the series. Among them, compounds 1o and 2d showed improved activity with IC90 of 2 mu M and 0.5 mu M, respectively. Further optimization provided compound 3b with better physiochemical properties with IC90 0.4 mu M which had activity in a mouse model of infection. The role of the conformation of the 4- and 6-aryl substituents is also described. (c) 2013 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmcl.2013.09.035
• 作为产物：
  描述：

  4-乙炔基苯甲醚 在 正丁基锂 、 三氟甲磺酸 、 水 、 sodium hydroxide 作用下， 以 四氢呋喃 、 乙醇 、 正己烷 、 二氯甲烷 为溶剂， 反应 6.5h， 生成 tert-butyl 3-(4-methoxyphenyl)propiolate
  参考文献：
  名称：

  Gold-catalyzed formal [4π+2π]-cycloadditions of tert-butyl propiolates with aldehydes and ketones to form 4H-1,3-dioxine derivatives

  摘要：

  新颖的金催化[4π+2π]-环加成反应已经被开发出来，用于将叔丁基丙炔酸酯与醛和酮反应，形成4H-1,3-二氧杂环己烷衍生物。

  DOI：

  10.1039/c5cc04538j

文献信息

• Development of Gold-catalyzed [4+1] and [2+2+1]/[4+2] Annulations between Propiolate Derivatives and Isoxazoles
  作者：Rajkumar Lalji Sahani、Rai-Shung Liu

  DOI：10.1002/anie.201610665

  日期：2017.1.19

  new gold‐catalyzed annulations of isoxazoles with propiolates have been developed. Most isoxazoles follow an initial O attack on the alkyne to afford a [4+1] annulation product. This process results in a remarkable alkyne cleavage of initial propiolates. Unsubstituted isoxazoles proceed through an N attack step to yield formal [2+2+1]/[4+2] annulation products. These two annulation products arise initially

  已经开发了两种新的金催化的异恶唑与丙酸酯的环。大多数异恶唑在对炔烃进行初始O攻击后，即可得到[4 + 1]环化产物。该过程导致初始丙酸酯的显着炔烃裂解。未取代的异恶唑通过N攻击步骤进行操作，得到正式的[2 + 2 + 1] / [4 + 2]环化产物。这两个环空产物最初来自两个七元杂环中间体，然后形成产物。
• Gold‐Catalyzed [4+2] Annulation/Cyclization Cascades of Benzisoxazoles with Propiolate Derivatives to Access Highly Oxygenated Tetrahydroquinolines
  作者：Rajkumar Lalji Sahani、Rai‐Shung Liu

  DOI：10.1002/anie.201707423

  日期：2017.10.2

  Tag team: This work describes gold-catalyzed [4+2] annulation/cyclization cascades of electron-deficient alkynes with benzisoxazoles to yield quinoline oxides chemoselectively. With the same reactants, a new relay catalysis using gold and zinc(II) catalysts afford highly oxygenated tetrahydroquinoline derivatives stereoselectively. Tf=trifluoromethanesulfonyl.

  标签小组：这项工作描述了缺电子炔烃与苯并异恶唑的金催化[4 + 2]环化/环化级联反应，可化学选择性地产生喹啉氧化物。使用相同的反应物，使用金和锌（II）催化剂的新的中继催化立体选择性地提供了高度氧化的四氢喹啉衍生物。Tf ＝三氟甲磺酰基。
• A direct and sustainable synthesis of tertiary butyl esters enabled by flow microreactors
  作者：Leonardo Degennaro、Daniela Maggiulli、Claudia Carlucci、Flavio Fanelli、Giuseppe Romanazzi、Renzo Luisi

  DOI：10.1039/c6cc04588j

  日期：——

  in synthetic organic chemistry. A straightforward method for the direct introduction of the tert-butoxycarbonyl group into a variety of organic compounds has been developed using flow microreactor systems. The resultant flow process was more efficient, versatile and sustainable compared to the batch.

  叔丁酯在合成有机化学中有广泛的应用。已经使用流动微反应器系统开发了直接将叔丁氧羰基引入各种有机化合物的直接方法。与批次相比，最终的流程更加高效，通用和可持续。
• Enantioselective Nickel-Catalyzed Alkyne–Azide Cycloaddition by Dynamic Kinetic Resolution
  作者：En-Chih Liu、Joseph J. Topczewski

  DOI：10.1021/jacs.1c01354

  日期：2021.4.14

  α-chiral, being derived from amino acids. This makes α-N-chiral triazoles attractive building blocks. This report describes the first enantioselective triazole synthesis that proceeds via nickel-catalyzed alkyne–azide cycloaddition (NiAAC). This dynamic kinetic resolution is enabled by a spontaneous [3,3]-sigmatropic rearrangement of the allylic azide. The 1,4,5-trisubstituted triazole products, derived

  三唑杂环已被广泛采用作为酰胺键的等排体。许多天然酰胺是α-手性的，衍生自氨基酸。这使得 α- N-手性三唑成为有吸引力的结构单元。该报告描述了通过镍催化的炔叠氮环加成（NiAAC）进行的第一个对映选择性三唑合成。这种动态动力学拆分是通过烯丙基叠氮化物的自发[3,3]-σ重排实现的。衍生自内部炔烃的 1,4,5-三取代三唑产物与相关 CuAAC 反应通常获得的产物是互补的。初步机理实验表明 NiAAC 反应通过单金属 Ni 络合物进行，这与 CuAAC 流形不同。
• Gold-catalyzed formal [4π + 2π]-cycloadditions of propiolate derivatives with unactivated nitriles
  作者：Somnath Narayan Karad、Wei-Kang Chung、Rai-Shung Liu

  DOI：10.1039/c5sc01950h

  日期：——

  Gold-catalyzed hetero-[4π + 2π]-cycloadditions of tert-butyl propiolates with unactivated nitriles are described. This new finding enables a one-pot gold-catalyzed synthesis of highly substituted pyridines.

  金催化的异质-[4π + 2π]-环加成反应中，描述了对未活化腈的tert-丁基丙炔酸酯的反应。这一新发现实现了一锅法金催化合成高度取代的吡啶。