Selective C-C bonds formation,N-alkylation and benzo[d]imidazoles synthesis by a recyclable zinc composite  

作　　者：Guanxin Zhu Zheng-Chao Duan Haiyan Zhu Dongdong Ye Dawei Wang 

机构地区：[1]The Key Laboratory of Synthetic and Biological Colloids,Ministry of Education,School of Chemical and Material Engineering,Jiangnan University,Wuxi 214122,China [2]State Key Laboratory of Pulp and Paper Engineering,South China University of Technology,Guangzhou 510640,China [3]School of Chemical and Environmental Engineering,Hubei Minzu University,Enshi 445000,China

出　　处：《Chinese Chemical Letters》2022年第1期266-270,共5页中国化学快报（英文版）

基　　金：financial support of this work by the National Natural Science Foundation of China(Nos.21776111,21861039);State Key Laboratory of Pulp and Paper Engineering(No.202001);Central Laboratory,School of Chemical and Material Engineering,Jiangnan University。

摘　　要：Earth abundant metals are much less expensive,promising,valuable metals and could be served as catalysts for the borrowing hydrogen reaction,dehydrogenation and heterocycles synthesis,instead of noble metals.The uniformly dispersed zinc composites were designed,synthesized and carefully characterized by means of XPS,EDS,TEM and XRD.The resulting zinc composite showed good catalytic activity for the N-alkylation of amines with amines,ketones with alcohols in water under base-free conditions,while unsaturated carbonyl compounds could also be synthesized by tuning the reaction conditions.Importantly,it was the first time to realize the synthesis of 2-aryl-1H-benzo[d]imidazole derivatives by using this zinc composite under green conditions.Meanwhile,this zinc catalyst could be easily recovered and reused for at least five times.

关 键 词：Unsymmetrical ZINC Borrowing hydrogen RECYCLABILITY SELECTIVE 

分 类 号：O643.36[理学—物理化学]