3-Phenylmethoxy-2-(2-trimethylsilylethynyl)chromen-4-one | 1190883-35-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并吡喃
• 英文名称: 3-Phenylmethoxy-2-(2-trimethylsilylethynyl)chromen-4-one
• CAS: 1190883-35-2
• 化学式: C₂₁H₂₀O₃Si
• 分子量: 348.474
• InChiKey: ZMHSNTFAJJUDPF-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.6
• 重原子数：
  25
• 可旋转键数：
  5
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.19
• 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：

  3-Phenylmethoxy-2-(2-trimethylsilylethynyl)chromen-4-one 、 在 copper(l) iodide 、 四丁基氟化铵 、 silica gel 、 N,N-二异丙基乙胺 作用下， 反应 0.03h， 以95%的产率得到
  参考文献：
  名称：

  Efficient Synthesis of Ratiometric Fluorescent Nucleosides Featuring 3-Hydroxychromone Nucleobases

  摘要：

  The synthesis of a novel class of fluorescent nucleosides featuring 2-aryl-3-hydroxychromones (3-HC) as base analogues is described. Nucleoside la bearing the 2-thienyl-3-HC nucleobase was prepared using sequential aryl-aldol condensation/cycloetherification or a Friedel-Crafts glycosylation as key steps. The synthesis of the triazolyl derivative 1b was achieved using a convergent 1,3-dipolar cycloaddition strategy. Fluorescence studies show that 3-HC-thienyl-nucleoside la displays high sensitivity of its dual emission to polarity changes and therefore is highly promising for nucleic acid labelling. (C) 2009 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2009.07.021
• 作为产物：
  描述：

  3-benzyloxy-2-bromochromen-4-one 、 三甲基乙炔基硅 在 bis-triphenylphosphine-palladium(II) chloride 、 copper(l) iodide 、 三乙胺 作用下， 以 甲苯 为溶剂， 反应 1.0h， 以92%的产率得到3-Phenylmethoxy-2-(2-trimethylsilylethynyl)chromen-4-one
  参考文献：
  名称：

  Efficient Synthesis of Ratiometric Fluorescent Nucleosides Featuring 3-Hydroxychromone Nucleobases

  摘要：

  The synthesis of a novel class of fluorescent nucleosides featuring 2-aryl-3-hydroxychromones (3-HC) as base analogues is described. Nucleoside la bearing the 2-thienyl-3-HC nucleobase was prepared using sequential aryl-aldol condensation/cycloetherification or a Friedel-Crafts glycosylation as key steps. The synthesis of the triazolyl derivative 1b was achieved using a convergent 1,3-dipolar cycloaddition strategy. Fluorescence studies show that 3-HC-thienyl-nucleoside la displays high sensitivity of its dual emission to polarity changes and therefore is highly promising for nucleic acid labelling. (C) 2009 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2009.07.021