| 1248448-03-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 偶氮苯
• CAS: 1248448-03-4
• 化学式: C₄₂H₅₄N₂O₁₀
• 分子量: 746.898
• InChiKey: FWSSKZLKJFLRJI-VGFSZAGXSA-N

反应信息

• 作为反应物：
  描述：

  以 甲醇 、 二氯甲烷 为溶剂， 生成
  参考文献：
  名称：

  Trans–cis isomerization of arylether dendrimers with azobenzene core and terminal hydroxy groups

  摘要：

  Azobenzene-cored arylether dendrimers 2a-2c with polar hydroxy groups at the periphery have been prepared from hydroboration-oxidation reaction of azobenzene-cored arylether dendrimers 1a-1c with nonpolar vinyl groups at the periphery. Trans -> cis photoisomerization of central azo group has been investigated by UV-vis spectral changes after photolysis. The results show that dendrimers 1a-1c and 2a-2c in methanol/dichloromethane (1/1, v/v) have carried out trans-cis isomerization. Reaction rate for trans -> cis photoisomerization of 2a-2c with polar hydroxy groups increases with increasing generation upon irradiation of 350 nm. On the other hand, the reaction rate of cis -> trans thermal back isomerization for 2a-2c decreases with increasing the generation. This result is somewhat different from that for 1a-1c with nonpolar vinyl groups. Both the reaction rates of trans -> cis photoisomerization and cis -> trans thermal back isomerization for 1a-1c decrease in higher generation. (C) 2010 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.saa.2010.06.022
• 作为产物：
  描述：

  在 硼烷四氢呋喃络合物 、 双氧水 、 sodium hydroxide 作用下， 以 四氢呋喃 、 甲醇 、 水 为溶剂， 反应 12.0h， 以41%的产率得到
  参考文献：
  名称：

  Trans–cis isomerization of arylether dendrimers with azobenzene core and terminal hydroxy groups

  摘要：

  Azobenzene-cored arylether dendrimers 2a-2c with polar hydroxy groups at the periphery have been prepared from hydroboration-oxidation reaction of azobenzene-cored arylether dendrimers 1a-1c with nonpolar vinyl groups at the periphery. Trans -> cis photoisomerization of central azo group has been investigated by UV-vis spectral changes after photolysis. The results show that dendrimers 1a-1c and 2a-2c in methanol/dichloromethane (1/1, v/v) have carried out trans-cis isomerization. Reaction rate for trans -> cis photoisomerization of 2a-2c with polar hydroxy groups increases with increasing generation upon irradiation of 350 nm. On the other hand, the reaction rate of cis -> trans thermal back isomerization for 2a-2c decreases with increasing the generation. This result is somewhat different from that for 1a-1c with nonpolar vinyl groups. Both the reaction rates of trans -> cis photoisomerization and cis -> trans thermal back isomerization for 1a-1c decrease in higher generation. (C) 2010 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.saa.2010.06.022