石油化工2011，Vol.40Issue(6)：624-629,6.
对叔丁基苯酚羟基化反应的研究
4-tert-Butyl-Phenol Hydroxylation
赵亮亮 1杨元法 1李艳妮 1刘兰香 1朱玉梅1
作者信息
- 1. 浙江师范大学物理化学研究所浙江省固体表面反应化学重点实验室,浙江金华321004
- 折叠
摘要
Abstract
4-tert-Butylcatechol(4-TBC) was synthesized from 4-terr-butyl-phenol( PTBP) by hydroxylation with Fe(OH)3 + organic completing agent + H2O2 system. Effects of reaction time, reaction temperature, catalyst dosage, n(H2O2): n(PTBP), solvent type and cocatalyst dosage on the hydroxylation were investigated. The results showed that the solvent type and n (H2 O2) : n (PTBP) played important roles in the hydroxylation. Under the conditions; PTBP 0. 80 g, n ( H2 O2) :n(PTBP) =1.0, acetonitrile- water mixture (volume ratio 2 : 1) as the solvent 30 mL, Fe(OH)30.05 g and catechol as the cocatalyst and complexing agent 0.05 g, reaction temperature 55 ℃ and reaction time 60 min, PTBP conversion was 18. 5% and selectivity to 4-TBC reached 89. 2%. Discussion of the reaction mechanism showed that PTBP could not be hydroxylated by hydroxyl radical (·OH) formed in Fe3+ + H2O2 system; in Fe3+ + organic complexing agent + H2O2 system, an active iron-oxygen complex was formed, which had good affinity with the reactant PTBP.关键词
对叔丁基邻苯二酚/羟基化催化剂/对叔丁基苯酚/邻苯二酚/铁氧络合物Key words
4-terr-butylcatechol/hydroxylation catalyst/4-tert-butyl-phenol/catechol/iron-oxygen complex分类
化学工程引用本文复制引用
赵亮亮,杨元法,李艳妮,刘兰香,朱玉梅..对叔丁基苯酚羟基化反应的研究[J].石油化工,2011,40(6):624-629,6.
