4-[(4-乙基苯基氨基)甲基]苯-1,2-二醇 | 1019492-53-5

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 4-[(4-乙基苯基氨基)甲基]苯-1,2-二醇
• 英文名称: 4-[(4-ethylphenylamino)methyl]benzene-1,2-diol
• 英文别名: 4-[(4-Ethylanilino)methyl]benzene-1,2-diol
• CAS: 1019492-53-5
• 化学式: C₁₅H₁₇NO₂
• mdl: MFCD11146050
• 分子量: 243.305
• InChiKey: RFHBNUSLAIEBLZ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.5
• 重原子数：
  18
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  52.5
• 氢给体数：
  3
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  4-[(4-ethylphenylimino)methyl]benzene-1,2-diol 在 sodium tetrahydroborate 作用下， 以 甲醇 为溶剂， 以78%的产率得到4-[(4-乙基苯基氨基)甲基]苯-1,2-二醇
  参考文献：
  名称：

  Catechol immobilized on crosslinked polystyrene resins by grafting or copolymerization: Incidence on metal ions adsorption

  摘要：

  Porous poly(styrene-co-divinylbenzene) resins functionalized with catechol were prepared in two different ways. Catechol was either grafted on commercial Amberlite((R)) XAD-4 resin via a reduced imine and diazo bridges or incorporated by direct copolymerization of divinylbenzene with dimethoxystyrene followed by deprotection of the methoxy groups. The efficiency of functionalization was evidenced by pyrolysis coupled with gas phase chromatography and infra-red spectroscopy. The amount of incorporated catechol inside the different resins was determined by acido-basic back titration and varies between 0.27 and 1.38 mmol/g of resin. Grafting resulted in a decrease of the surface area due to the blocking of some connections between the mesopores. For synthesized copolymers, high contents of divinylbenzene monomer led to high surface areas. Comparing metal retention properties of both kind of materials towards Pb(II), Cu(II), Ni(II) and Cd(II) ions proved the equivalence of these sorbents. At low metal concentration, interactions with the sorbents seem to be non specific whereas at higher concentration catechol is responsible for the retention properties. Since the synthesis of copolymers is easier than the grafting of sorbents, it appears to be a more attractive procedure to obtain chelating sorbents. (C) 2011 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.reactfunctpolym.2011.11.001

文献信息

• Catechol immobilized on crosslinked polystyrene resins by grafting or copolymerization: Incidence on metal ions adsorption
  作者：Julie Bernard、Catherine Branger、Isabelle Beurroies、Renaud Denoyel、André Margaillan

  DOI：10.1016/j.reactfunctpolym.2011.11.001

  日期：2012.1

  Porous poly(styrene-co-divinylbenzene) resins functionalized with catechol were prepared in two different ways. Catechol was either grafted on commercial Amberlite((R)) XAD-4 resin via a reduced imine and diazo bridges or incorporated by direct copolymerization of divinylbenzene with dimethoxystyrene followed by deprotection of the methoxy groups. The efficiency of functionalization was evidenced by pyrolysis coupled with gas phase chromatography and infra-red spectroscopy. The amount of incorporated catechol inside the different resins was determined by acido-basic back titration and varies between 0.27 and 1.38 mmol/g of resin. Grafting resulted in a decrease of the surface area due to the blocking of some connections between the mesopores. For synthesized copolymers, high contents of divinylbenzene monomer led to high surface areas. Comparing metal retention properties of both kind of materials towards Pb(II), Cu(II), Ni(II) and Cd(II) ions proved the equivalence of these sorbents. At low metal concentration, interactions with the sorbents seem to be non specific whereas at higher concentration catechol is responsible for the retention properties. Since the synthesis of copolymers is easier than the grafting of sorbents, it appears to be a more attractive procedure to obtain chelating sorbents. (C) 2011 Elsevier Ltd. All rights reserved.