8-(phenylazo)-5,7-dihydroxy-6-formyl-2-methylchromone | 188915-55-1

• 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: 8-(phenylazo)-5,7-dihydroxy-6-formyl-2-methylchromone
• 英文别名: 5,7-Dihydroxy-2-methyl-4-oxo-8-phenyldiazenylchromene-6-carbaldehyde
• CAS: 188915-55-1
• 化学式: C₁₇H₁₂N₂O₅
• 分子量: 324.293
• InChiKey: VPEUUFFVBNAKDF-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.5
• 重原子数：
  24
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.06
• 拓扑面积：
  109
• 氢给体数：
  2
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  nickel(II) chloride hexahydrate 、 8-(phenylazo)-5,7-dihydroxy-6-formyl-2-methylchromone 在 NH₃ 作用下， 以 乙醇 为溶剂， 以80%的产率得到
  参考文献：
  名称：

  Preparation and Spectroscopic Investigation of Chelates of Divalent Transition Metal Ions with 8-(Arylazo)-Chromones

  摘要：

  DOI：

  10.1080/00945719909351715

文献信息

• ——
  作者：Omyma E. Sherif、Hussein M. Abd El-Fattah

  DOI：10.1023/a:1026390105986

  日期：——

  Transition metal chelates of TiOIV, VOIV, Cr-III, Fe-III, Co-III and Pd-II ions with 8-(arylazo) chromones have been isolated and investigated by elemental analysis, IR, electronic spectra, thermogravimetric analysis, conductance and magnetic moment measurements. Chelates of general formula [ML or M2LXm.nH(2)O].yH(2)O, where, X=OH- or Cl- or SO42- ion, m=1,2 or 4, n=1,2,4 or 5, y=1-6, M=TiOIV, VOIV, Cr-III, Fe-III, Co-III and Pd-II ions and L=8-(arylazo) chromones have been synthesized. IR spectra indicate that the chromone carbonyl in position four and oxygen anion in position five participate in chelation in the 1:1 (M:L) chelates, whereas, for 2:1 (M:L) chelates the interaction of the metal ion takes place via the chromone carbonyl in position four and oxygen anion in position five as first chelation site, for the second metal ion chelation takes place through the formyl carbonyl in position six and oxygen anion in position seven for some chelates or through the azo group and any acidic substituent in ortho position to it. Octahedral or square planar structures were proposed for the prepared chelates based on their electronic spectra and magnetic moments. Thermogravimetric analysis suggests the presence of hydrated and coordinated water molecules. Non electrolytic nature was assigned based on molar conductance values.