聚2,6-双苯并咪唑吡啶钌配合物催化烷基芳烃氧化合成芳酮  

Oxidation of alkyl aromatics to ketones catalyzed by poly-2,6-bis(benzimidazolyl)pyridine-ruthenium complex

作　　者：杨利均 褚若思 张月成[1] 赵继全[1,2] Yang Lijun;Chu Ruosi;Zhang Yuecheng;Zhao Jiquan(School of Chemical Engineering and Technology,Hebei Provincial Key Lab of Green Chemical Technology&High Efficient Energy Saving,Hebei University of Technology,Tianjin 300130,China;School of Chemical Engineering and Technology,National-Local Joint Engineering Laboratory for Energy Conservation of Chemical Process Integration and Resources Utilization,Hebei University of Technology,Tianjin 300130,China)

机构地区：[1]河北工业大学化工学院河北省绿色化工与高效节能重点实验室,天津300130 [2]河北工业大学化工学院化工节能过程集成与资源利用国家地方联合实验室,天津300130

出　　处：《石油化工》2020年第6期538-543,共6页Petrochemical Technology

基　　金：国家自然科学基金青年基金项目(21776056)。

摘　　要：以聚2,6-双苯并咪唑吡啶(pbbp)、吡啶二羧酸根(pydic)和三氯化钌共配位制备聚合物-钌配合物Ru(pbbp)(pydic),考察了该聚合物-钌配合物对烷基芳烃氧化反应的催化性能、底物的适用性及循环使用性能。实验结果表明,该聚合物-钌配合物在无溶剂条件下可高效地催化叔丁基过氧化氢直接将芳基烷烃氧化生成相应的芳酮,且底物适用性广泛,还可将环脂烃氧化为相应的环酮;Ru(pbbp)(pydic)催化剂尽管在使用中有一定的钌流失,但容易回收,有较好的可循环使用性能。A polymer-ruthenium complex Ru(pbbp)(pydic)was prepared from co-coordination of RuCl3 with poly-2,6-bis(benzimidazolyl)pyridine(pbbp)and disodium pyridine-2,6-dicarboxylate(pydic).The catalytic performance,substrate scope and recyclability of this polymer-ruthenium complex were investigated.The test results showed that various alkyl aromatics were effectively oxidized to their corresponding ketones with tert-butyl hydrogen peroxide under the catalysis of this polymer-ruthenium complex under solvent-free conditions,indicating its broad substrate tolerance of the polymer-ruthenium complex.Besides,cycloalkanes could be also oxidized to their corresponding cyclic ketones under the same reaction conditions.The complex Ru(pbbp)(pydic)as a catalyst has the advantages of easy recovery and good reusability,though some ruthenium leaking took place during the catalytic run.

关 键 词：2 6-双苯并咪唑吡啶聚合物 钌配合物 氧化 芳基烷烃 叔丁基过氧化氢 

分 类 号：TQ426.92[化学工程]