S-pyridin-2-yl oct-7-enethioate | 1226949-09-2

• 分子结构分类: 有机化合物 - 有机硫化合物 - 硫醚类
• 英文名称: S-pyridin-2-yl oct-7-enethioate
• CAS: 1226949-09-2
• 化学式: C₁₃H₁₇NOS
• 分子量: 235.35
• InChiKey: LYIWYYPKRFXCRK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4
• 重原子数：
  16
• 可旋转键数：
  8
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  55.3
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  S-pyridin-2-yl oct-7-enethioate 、 丙烯腈 在 C₅₃H₇₄CoN₅O₁₅⁽¹⁺⁾*ClO₄^(1-)*H₂O 、 氯化铵 、 锌 作用下， 以 乙腈 为溶剂， 反应 16.0h， 以80%的产率得到4-oxoundec-10-enenitrile
  参考文献：
  名称：

  光驱动的维生素B12催化的2-S-吡啶基硫代酯的酰基自由基生成

  摘要：

  酰基是有机合成中不可估量的中间体，但是它们的产生仍然具有挑战性。本文中，我们提出了一种空前的光驱动，钴催化的方法，用于从易于获得的2- S-吡啶基硫代酯中生成酰基自由基。该方法的合成潜力已在庚二酸七甲酯存在下活化烯烃的Giese型酰化反应中得到了证明。这种维生素B 12衍生物被证明是研究过程中最有效的催化剂。所开发的方法具有广泛的底物范围（38个示例），良好的官能团耐受性和温和的反应条件。此外，它易于扩展（在20倍的放大过程中进行了说明），从而可以进行准备性使用。机理研究表明，该反应通过自由基途径进行，关键步骤涉及酰基维生素B 12络合物的形成以及随后的Co-C键光解。

  DOI：

  10.1002/adsc.201700913
• 作为产物：
  描述：

  2,2'-二硫二吡啶 、 7-辛烯酸 在 三苯基膦 作用下， 以 甲苯 为溶剂， 以98%的产率得到S-pyridin-2-yl oct-7-enethioate
  参考文献：
  名称：

  Synthesis and Characterization of BODIPY-α-Tocopherol: A Fluorescent Form of Vitamin E

  摘要：

  Fluorescent nitrobenzoxadiazole analogues of alpha-tocopherol (NBD-alpha-Tocs;lambda(ex) = 468 nm, lambda(em) = 527 nm) have been made previously to aid study of the intracellular location and transfer of vitamin E. However, these analogues are susceptible to photobleaching while under illumination for confocal microscopy as well as in in vitro FRET transfer assays. Here we report the synthesis of three fluorescent analogues of alpha-tocopherol incorporating the more robust dipyrrometheneboron difluoride (BODIPY) fluorophore. A BODIPY-linked chromanol should have no intervening polar functional groups that might interfere with binding to the hydrophobic binding site of the tocopherol transfer protein (alpha-TTP). A key step in bringing the two ring systems together was a metathesis reaction of vinyl chromanol and an alkenyl BODIPY. An o-tolyl containing second generation Grubbs catalyst was identified as the best catalyst for effecting the metathesis without detectable alkene isomerization, which when it occurred produced a mixture of chain lengths in the alkyl linker. C8-BODIPY-alpha-Toc 10c (lambda(ex) = 507 nm, lambda(em) = 511 nm, epsilon(507) = 83,000 M-1 cm(-1)) having an eight-carbon chain between the chromanol and fluorophore, had the highest affinity for alpha-TTP (K-d = 94 +/- 3 nM) and bound specifically as it could not be displaced with cholesterol.

  DOI：

  10.1021/jo100095n

文献信息

• Light‐Driven Vitamin B ₁₂ ‐Catalysed Generation of Acyl Radicals from 2‐ <i>S</i> ‐Pyridyl Thioesters
  作者：Michał Ociepa、Oskar Baka、Jakub Narodowiec、Dorota Gryko

  DOI：10.1002/adsc.201700913

  日期：2017.10.25

  Acyl radicals are invaluable intermediates in organic synthesis, however their generation remains challenging. Herein, we present an unprecedented light‐driven, cobalt‐catalysed method for the generation of acyl radicals from readily available 2‐S‐pyridyl thioesters. The synthetic potential of this methodology was demonstrated in the Giese‐type acylation of activated olefins in the presence of heptamethyl

  酰基是有机合成中不可估量的中间体，但是它们的产生仍然具有挑战性。本文中，我们提出了一种空前的光驱动，钴催化的方法，用于从易于获得的2- S-吡啶基硫代酯中生成酰基自由基。该方法的合成潜力已在庚二酸七甲酯存在下活化烯烃的Giese型酰化反应中得到了证明。这种维生素B 12衍生物被证明是研究过程中最有效的催化剂。所开发的方法具有广泛的底物范围（38个示例），良好的官能团耐受性和温和的反应条件。此外，它易于扩展（在20倍的放大过程中进行了说明），从而可以进行准备性使用。机理研究表明，该反应通过自由基途径进行，关键步骤涉及酰基维生素B 12络合物的形成以及随后的Co-C键光解。
• Synthesis and Characterization of BODIPY-α-Tocopherol: A Fluorescent Form of Vitamin E
  作者：Ryan West、Candace Panagabko、Jeffrey Atkinson

  DOI：10.1021/jo100095n

  日期：2010.5.7

  Fluorescent nitrobenzoxadiazole analogues of alpha-tocopherol (NBD-alpha-Tocs;lambda(ex) = 468 nm, lambda(em) = 527 nm) have been made previously to aid study of the intracellular location and transfer of vitamin E. However, these analogues are susceptible to photobleaching while under illumination for confocal microscopy as well as in in vitro FRET transfer assays. Here we report the synthesis of three fluorescent analogues of alpha-tocopherol incorporating the more robust dipyrrometheneboron difluoride (BODIPY) fluorophore. A BODIPY-linked chromanol should have no intervening polar functional groups that might interfere with binding to the hydrophobic binding site of the tocopherol transfer protein (alpha-TTP). A key step in bringing the two ring systems together was a metathesis reaction of vinyl chromanol and an alkenyl BODIPY. An o-tolyl containing second generation Grubbs catalyst was identified as the best catalyst for effecting the metathesis without detectable alkene isomerization, which when it occurred produced a mixture of chain lengths in the alkyl linker. C8-BODIPY-alpha-Toc 10c (lambda(ex) = 507 nm, lambda(em) = 511 nm, epsilon(507) = 83,000 M-1 cm(-1)) having an eight-carbon chain between the chromanol and fluorophore, had the highest affinity for alpha-TTP (K-d = 94 +/- 3 nM) and bound specifically as it could not be displaced with cholesterol.