N-(1H-benzimidazol-2-ylmethyl)-2-(4-tert-butylphenoxy)acetamide | 728887-24-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并咪唑类
• 英文名称: N-(1H-benzimidazol-2-ylmethyl)-2-(4-tert-butylphenoxy)acetamide
• CAS: 728887-24-9
• 化学式: C₂₀H₂₃N₃O₂
• mdl: MFCD06017916
• 分子量: 337.422
• InChiKey: GEVAOQWTCOQCJL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4
• 重原子数：
  25
• 可旋转键数：
  6
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.3
• 拓扑面积：
  67
• 氢给体数：
  2
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  (1H-苯并咪唑-2-亚甲基)胺 、 4-叔-丁基苯氧基乙酸 在 1-羟基苯并三唑 、 盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 、 三乙胺 作用下， 以 二氯甲烷 为溶剂， 以74%的产率得到N-(1H-benzimidazol-2-ylmethyl)-2-(4-tert-butylphenoxy)acetamide
  参考文献：
  名称：

  Experimental and Computational Studies of Selective Recognition of Hg²⁺ by Amide Linked Lower Rim 1,3-Dibenzimidazole Derivative of Calix[4]arene: Species Characterization in Solution and that in the Isolated Complex, Including the Delineation of the Nanostructures

  摘要：

  Amide linked lower rim 1,3-dibenzimidazole derivative of calix[4]arene, L has been shown to be sensitive and selective to Hg2+ in aqueous acetonitrile solution based on fluorescence spectroscopy, and the stoichiometry of the complexed species has been found to be 1:1. The selectivity of L toward Hg2+ has been shown among 11 M2+ ions, viz., Mn2+, Fe2+, CO2+, Ni2+, Cu2+, Zn2+, Cd2+, Hg2+, Ph2+, Ca2+, and Mg2+ studied, including those of the mercury group and none of these ions impede the recognition of Hg2+ by L. Role of the solvent on the recognition of Hg2+ has been demonstrated. The role of calix[4]arene platform and the benzimidazole moieties in the recognition of Hg2+ by L has been delineated upon performing such studies with five different molecules of relevance as reference molecular systems. The binding cores formed by the receptor L and the reference compounds have been established based on the single crystal XRD structures, and the preferential metal ion binding cores have been discussed. The binding, of Hg2+ with L has been further established based on H-1 and C-13 NMR, ESI MS, absorption, and fluorescence lifetime measurements. Some of these techniques have been used to establish the stoichiometry of the species formed. The complex species formed between L and Hg2+ have been isolated and characterized and found to be 1:1 species even in the isolated complex. Whereas transmission electron microscopy (TEM), atomic force microscopy (AFM), and scanning electron microscopy (SEM) provided the nanostructural behavior of L, the TEM and SEM demonstrated that the mercury complex has different characteristics when compared to L. The TEM, SEM, and powder XRD studies revealed that whereas L is crystalline, that of the mercury complex is not, perhaps a reason for not being able to obtain single crystals of the complex. Binding characteristics of Hg2+ toward L have been established based on the DFT computational calculations.

  DOI：

  10.1021/jo800073g

文献信息

• Experimental and Computational Studies of Selective Recognition of Hg²⁺ by Amide Linked Lower Rim 1,3-Dibenzimidazole Derivative of Calix[4]arene: Species Characterization in Solution and that in the Isolated Complex, Including the Delineation of the Nanostructures
  作者：Roymon Joseph、Balaji Ramanujam、Amitabha Acharya、Anupam Khutia、Chebrolu P. Rao

  DOI：10.1021/jo800073g

  日期：2008.8.1

  Amide linked lower rim 1,3-dibenzimidazole derivative of calix[4]arene, L has been shown to be sensitive and selective to Hg2+ in aqueous acetonitrile solution based on fluorescence spectroscopy, and the stoichiometry of the complexed species has been found to be 1:1. The selectivity of L toward Hg2+ has been shown among 11 M2+ ions, viz., Mn2+, Fe2+, CO2+, Ni2+, Cu2+, Zn2+, Cd2+, Hg2+, Ph2+, Ca2+, and Mg2+ studied, including those of the mercury group and none of these ions impede the recognition of Hg2+ by L. Role of the solvent on the recognition of Hg2+ has been demonstrated. The role of calix[4]arene platform and the benzimidazole moieties in the recognition of Hg2+ by L has been delineated upon performing such studies with five different molecules of relevance as reference molecular systems. The binding cores formed by the receptor L and the reference compounds have been established based on the single crystal XRD structures, and the preferential metal ion binding cores have been discussed. The binding, of Hg2+ with L has been further established based on H-1 and C-13 NMR, ESI MS, absorption, and fluorescence lifetime measurements. Some of these techniques have been used to establish the stoichiometry of the species formed. The complex species formed between L and Hg2+ have been isolated and characterized and found to be 1:1 species even in the isolated complex. Whereas transmission electron microscopy (TEM), atomic force microscopy (AFM), and scanning electron microscopy (SEM) provided the nanostructural behavior of L, the TEM and SEM demonstrated that the mercury complex has different characteristics when compared to L. The TEM, SEM, and powder XRD studies revealed that whereas L is crystalline, that of the mercury complex is not, perhaps a reason for not being able to obtain single crystals of the complex. Binding characteristics of Hg2+ toward L have been established based on the DFT computational calculations.