摘要
研究了铁（Ⅱ）－Ｌ（Ｌ＝Ｃ２Ｏ４２－、ＥＤＴＡ、ＣＮ－、Ｃ５Ｈ５－、１，１０－ｐｈｅｎａｎｔｈｒｏｌｉｎｅ和２，２′－ｄｉｐｙｒｉｄｉｎｅ）对苯酚羟化反应的催化作用．结果表明，催化剂的苯酚羟化活性与它们的氧化还原电位有关，电位过高和过低都不利于苯酚羟化反应的进行．本文同时提出了苯酚羟化的反应机理。
Catalysis of iron(Ⅱ) L (L=C 2O 4 2- , EDTA, CN -, C 5H 5 -, 1,10 phenanthroline and 2,2′ dipyridine) was studied in homogeneous phenol hydroxylation. The results show that the activity of these catalysts is related to their redox potential, too low or too high redox potential is not favorable for its catalysis in phenol hydroxylation. With the help of UV Vis, ESR spectra and the catalysis of some catalysts in H 2O 2 decomposition, radical substitution mechanism of phenol hydroxylation with H 2O 2 as oxygen donor is proposed.
出处
《分子催化》
EI
CAS
CSCD
北大核心
1997年第1期27-34,共8页
Journal of Molecular Catalysis(China)
关键词
铁
配合物
苯酚
羟化
催化
络合物催化剂
Iron(Ⅱ) L complexes, Phenol hydroxylation, Hydrogen peroxide
