A moderate and efficient method for oxidation of ethylbenzene with hydrogen peroxide catalyzed by 8-quinolinolato manganese(III) complexes
A moderate and efficient method for oxidation of ethylbenzene with hydrogen peroxide catalyzed by 8-quinolinolato manganese(III) complexes
复制标题
8-羟基喹啉锰(III)配合物催化过氧化氢温和高效氧化乙苯的方法
DOI:
10.1016/j.molcata.2010.08.008
复制
发表时间:
2010-10
影响因子:
--
通讯作者:
He, Xiangling
中科院分区:
文献类型:
--
作者:
Wu, Youyu;Liu, Fenglan;Lu, Chunli;Fu, Zaihui;Liu, Yachun;Yin, Dulin;Qin, Jinwei;He, Xiangling
The oxidation of ethylbenzene with 30% aqueous hydrogen peroxide (H2O2) in an acetone–water medium at 30°C was investigated using hexadentate 8-quinolinolato manganese(III) complexes (Q3MnIII) as catalysts. The results indicated that the Q3MnIIIcomplexes, with ammonium acetate and acetic acid as additives, selectively catalyzed the side chain oxidation of ethylbenzene at secondary carbon atoms, affording acetophenone as a major product. Among the Q3MnIIIcomplexes examined, the 5,7-dibrominated Q3MnIIIcatalyst was the most active, and provided the ethylbenzene conversion of 26.1% and the oxidation yield of 65% under the optimum conditions. The influence of various parameters on the reaction was checked in detail. Based on the UV–vis spectra, a free radical mechanism for the Q3MnIIIcatalytic system was also proposed.
登录
查看更多内容
影响因子:
7.3
作者:
Ye, Zhengpei;Liu, Fenglan;Zhong, Sheng;Yin, Dulin;Fu, Zaihui;Xie, Fang;Zhou, Xiaoping
通讯作者:
Zhou, Xiaoping
影响因子:
2.8
作者:
S. D. George;S. C. Sherman;A. Iretskii;M. White
通讯作者:
S. D. George;S. C. Sherman;A. Iretskii;M. White
影响因子:
15
作者:
K. Srinivasan;P. Michaud;J. Kochi
通讯作者:
K. Srinivasan;P. Michaud;J. Kochi
影响因子:
5.5
作者:
N. Mal;A. V. Ramaswamy
通讯作者:
N. Mal;A. V. Ramaswamy
影响因子:
5.5
作者:
R. Alcántara;L. Canoira;Pedro Guilherme João;José-Marı́a Santos;Ignacio Vázquez
通讯作者:
R. Alcántara;L. Canoira;Pedro Guilherme João;José-Marı́a Santos;Ignacio Vázquez