1,3-alternate 25,27-dibenzyloxy-calix[4]bisamide-crown-6 | 257624-55-8

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 大环内酰胺类
• 英文名称: 1,3-alternate 25,27-dibenzyloxy-calix[4]bisamide-crown-6
• CAS: 257624-55-8
• 化学式: C₅₂H₅₂N₂O₈
• 分子量: 832.993
• InChiKey: AGCSQBBUJQDVPR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  7.56
• 重原子数：
  62.0
• 可旋转键数：
  6.0
• 环数：
  8.0
• sp3杂化的碳原子比例：
  0.27
• 拓扑面积：
  113.58
• 氢给体数：
  2.0
• 氢受体数：
  8.0

反应信息

• 作为反应物：
  描述：

  1,3-alternate 25,27-dibenzyloxy-calix[4]bisamide-crown-6 在 硼烷 、 sodium carbonate 作用下， 以 四氢呋喃 、 苯 为溶剂， 反应 60.0h， 生成 1,3-alternate 25,27-dibenzyloxycalix[4]mono(anthrylmethyl)-aza-crown-6
  参考文献：
  名称：

  Optical Sensing of Cesium Using 1,3-Alternate Calix[4]-mono- and Di(anthrylmethyl)aza-crown-6

  摘要：

  AbstractWe have synthesized two derivatives of alkylanthracene covalently bonded to 1,3‐alternate calix[4]aza‐crown‐6 at the nitrogen position to study the effect of alkali metal ion complexation on the emission properties of anthracene fluorophore. The mono‐ and dianthryl‐substituted probes are weakly fluorescent because their emission is partially quenched by photoinduced electron transfer (PET) from the nitrogen lone pair to the excited singlet state of anthracene. Upon complexation of alkali metal ions (e.g. K+, Cs+) by the crown moiety, the nitrogen lone pair can no longer participate in the PET process causing an enhancement in the emission of anthracene fluorophore (fluorescent turn on). The maximum fluorescence enhancement observed upon complexation of cesium ions by mono‐ and dianthryl‐substituted calix[4]aza‐crown‐6 relative to the uncomplexed form was 8.5‐ and 11.6‐fold, respectively.

  DOI：

  10.1111/j.1751-1097.1999.tb08297.x
• 作为产物：
  描述：

  25,27-bis(benzyloxy)-26,28-dihydroxycalix[4]arene 、 N,N'-[1,2-ethanediylbis(oxy-2,1-ethanediyl)]-bis-2-chloroacetamide 在 caesium carbonate 作用下， 以 乙腈 为溶剂， 反应 120.0h， 以37.5%的产率得到1,3-alternate 25,27-dibenzyloxy-calix[4]bisamide-crown-6
  参考文献：
  名称：

  Optical Sensing of Cesium Using 1,3-Alternate Calix[4]-mono- and Di(anthrylmethyl)aza-crown-6

  摘要：

  AbstractWe have synthesized two derivatives of alkylanthracene covalently bonded to 1,3‐alternate calix[4]aza‐crown‐6 at the nitrogen position to study the effect of alkali metal ion complexation on the emission properties of anthracene fluorophore. The mono‐ and dianthryl‐substituted probes are weakly fluorescent because their emission is partially quenched by photoinduced electron transfer (PET) from the nitrogen lone pair to the excited singlet state of anthracene. Upon complexation of alkali metal ions (e.g. K+, Cs+) by the crown moiety, the nitrogen lone pair can no longer participate in the PET process causing an enhancement in the emission of anthracene fluorophore (fluorescent turn on). The maximum fluorescence enhancement observed upon complexation of cesium ions by mono‐ and dianthryl‐substituted calix[4]aza‐crown‐6 relative to the uncomplexed form was 8.5‐ and 11.6‐fold, respectively.

  DOI：

  10.1111/j.1751-1097.1999.tb08297.x