ethyl 5-(prop-2-yn-1-yloxy)pentanoate | 1248571-03-0

• 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: ethyl 5-(prop-2-yn-1-yloxy)pentanoate
• 英文别名: 5-(propyn-3-yloxy)-pentanoic acid ethyl ester；Ethyl 5-prop-2-ynoxypentanoate；ethyl 5-prop-2-ynoxypentanoate
• CAS: 1248571-03-0
• 化学式: C₁₀H₁₆O₃
• 分子量: 184.235
• InChiKey: XWOLWNRFJCIJDW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.1
• 重原子数：
  13
• 可旋转键数：
  8
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.7
• 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：

  ethyl 5-(prop-2-yn-1-yloxy)pentanoate 在 sodium hydride 作用下， 以 四氢呋喃 、 乙醚 为溶剂， 反应 19.0h， 生成
  参考文献：
  名称：

  使用黄原酸盐光催化裂解醇的 C-O 键

  摘要：

  C-O 键的均裂裂解以提供烷基自由基是有机合成中有吸引力但具有挑战性的转变。在这里，我们描述了黄原酸盐的光催化脱氧 C-C 偶联反应，该反应可以很容易地从相应的醇中制备。该策略成功的关键是黄原酸盐的低氧化电位和使用合适的磷化氢来加速羰基硫的脱硫释放。

  DOI：

  10.1021/acs.orglett.1c04029
• 作为产物：
  描述：

  5-溴戊酸乙酯 、 2-丙炔-1-醇 在 sodium hydride 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 1.0h， 以2.64 g的产率得到ethyl 5-(prop-2-yn-1-yloxy)pentanoate
  参考文献：
  名称：

  6-Alkylquinolone-3-carboxylic acid tethered to macrolides synthesis and antimicrobial profile

  摘要：

  Two series of clarithromycin and azithromycin derivatives with terminal 6-alkylquinolone-3-carboxylic unit with central ether bond in the linker were prepared and tested for antimicrobial activity. Quinolonelinker intermediates were prepared by Sonogashira-type C(6)-alkynylation of 6-iodo-quinolone precursors. In the last step, 400 site-selective acylation of 2'-protected macrolides was completed with the EDC reagent, which selectively activated a terminal, aliphatic carboxylic group in dicarboxylic intermediates. Antimicrobial activity of the new series of macrolones is discussed. The most potent compound, 4"-O-{6-[3-(3-carboxy-1-ethyl-4-oxo-1,4-dihydroquinolin-6-yl)-propoxy]-hexanoyl}-azithromycin (10), is highly active against bacterial respiratory pathogens resistant to macrolide antibiotics and represents a promising lead for further investigation. (C) 2010 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2010.06.048

文献信息

• Photocatalytic C–O Bond Cleavage of Alcohols Using Xanthate Salts
  作者：Takeshi Nanjo、Tatsuki Matsugasako、Yuri Maruo、Yoshiji Takemoto

  DOI：10.1021/acs.orglett.1c04029

  日期：2022.1.14

  alkyl radicals is an attractive yet challenging transformation in organic synthesis. Herein we describe a photocatalyzed deoxygenative C–C coupling reaction of xanthate salts, which can be easily prepared from the corresponding alcohols. The key to the success of this strategy is the low oxidation potential of the xanthate salt and the use of an appropriate phosphine to accelerate the desulfurative release

  C-O 键的均裂裂解以提供烷基自由基是有机合成中有吸引力但具有挑战性的转变。在这里，我们描述了黄原酸盐的光催化脱氧 C-C 偶联反应，该反应可以很容易地从相应的醇中制备。该策略成功的关键是黄原酸盐的低氧化电位和使用合适的磷化氢来加速羰基硫的脱硫释放。
• 6-Alkylquinolone-3-carboxylic acid tethered to macrolides synthesis and antimicrobial profile
  作者：Samra Kapić、Hana Čipčić Paljetak、Sulejman Alihodžić、Roberto Antolović、Vesna Eraković Haber、Richard L. Jarvest、David J. Holmes、John P. Broskey、Eric Hunt

  DOI：10.1016/j.bmc.2010.06.048

  日期：2010.9

  Two series of clarithromycin and azithromycin derivatives with terminal 6-alkylquinolone-3-carboxylic unit with central ether bond in the linker were prepared and tested for antimicrobial activity. Quinolonelinker intermediates were prepared by Sonogashira-type C(6)-alkynylation of 6-iodo-quinolone precursors. In the last step, 400 site-selective acylation of 2'-protected macrolides was completed with the EDC reagent, which selectively activated a terminal, aliphatic carboxylic group in dicarboxylic intermediates. Antimicrobial activity of the new series of macrolones is discussed. The most potent compound, 4"-O-6-[3-(3-carboxy-1-ethyl-4-oxo-1,4-dihydroquinolin-6-yl)-propoxy]-hexanoyl}-azithromycin (10), is highly active against bacterial respiratory pathogens resistant to macrolide antibiotics and represents a promising lead for further investigation. (C) 2010 Elsevier Ltd. All rights reserved.