Selective oxidation of sulfides and oxidative bromination of organic substrates catalyzed by polymer anchored Cu(II) complex
作者:S.M. Islam、Anupam Singha Roy、Paramita Mondal、Kazi Tuhina、Manir Mobarak、John Mondal
DOI:10.1016/j.tetlet.2011.10.138
日期:2012.1
A new polymer-anchored Cu(II) complex has been synthesized and characterized. The catalytic performance of the complex has been tested for the oxidation of sulfides and in oxidative bromination reaction with hydrogen peroxide as the oxidant. Sulfides have been selectively oxidized to the corresponding sulfoxides in excellent yields and in the presence of KBr as the bromine source, organic substrates
合成并表征了一种新的聚合物锚定的Cu(II)配合物。已经测试了该配合物的催化性能,用于硫化物的氧化和以过氧化氢为氧化剂的氧化溴化反应。硫化物已经以极好的收率选择性地氧化为相应的亚砜,并且在溴化钾作为溴源的情况下,已使用聚合物固定的Cu(II)催化剂将有机底物选择性地转化为单溴取代的化合物。该催化剂表现出优异的催化活性,高选择性和可回收性。聚合物锚定的Cu(II)催化剂可通过过滤轻松回收,并重复使用五次以上,而不会损失其初始活性。