Highly efficient photocatalytic dehydrogenative coupling of amines with supported platinum catalyst under the oxidant-free conditions  

作　　者：Peng Bai Guobao Yang Haijing Sun Xinli Tong 

机构地区：[1]School of Chemistry and Chemical Engineering,Tianjin University of Technology,Tianjin,300384,China

出　　处：《Green Chemical Engineering》2022年第4期313-320,共8页绿色化学工程（英文）

基　　金：supported by the National Natural Science Foundation of China(No.21878235).

摘　　要：A highly efficient photocatalytic dehydrogenative coupling(PDC)of amines to prepare value-added imines has been developed under the mild conditions.A complete conversion of benzylamine with a 99%selectivity of Nbenzylidenebenzylamine could be obtained using the 2%Pt@g-C_(3)N_(4)as photocatalyst in the absence of hydrogen acceptor at room temperature.Moreover,the relationship between the physical properties of different photocatalysts and their activities has been discussed according to the characterization results of the XRD,BET,SEM,TEM,and XPS techniques.Next,the PDC of different amines have been further investigated,where ca.70.2%-99.0%yields of corresponding imines were attained.Finally,based on the experimental results and heterogeneous catalytic principle,a possible reaction mechanism for the PDC of benzylamine is proposed.

关 键 词：Photocatalysis Green synthesis BENZYLAMINE Acceptorless dehydrogenation Platinum 

分 类 号：TQ246.31[化学工程—有机化工] TQ426