典型文献
Engineering single-atom active sites anchored covalent organic frameworks for efficient metallaphotoredox C—N cross-coupling reactions
文献摘要：
Photoredox catalysis has become an indispensable solution for the synthesis of small organic molecules.However,the precise construction of single-atomic active sites not only determines the catalytic perfor-mance,but also avails the understanding of structure-activity relationship.Herein,we develop a facile approach to immobilize single-atom Ni sites anchored porous covalent organic framework(COF)by use of 4,4′,4″-(1,3,5-triazine-2,4,6-triyl)trianiline and 2,6-diformylpyridine(Ni SAS/TD-COF).Ni SAS/TD-COF catalyst achieves excellent catalytic performance in visible-light-driven catalytic carbon-nitrogen cross-coupling reaction between aryl bromides and amines under mild conditions.The reaction provides amine products in excellent yields(71％-97％)with a wide range of substrates,including aryl and hetero-aryl bromides with electron-deficient,electron-rich and neutral groups.Notably,Ni SAS/TD-COF could be recovered from the reaction mixture,corresponding to the negligible loss of photoredox performance after several cycles.This work provides a promising opportunity upon rational design of single-atomic active sites on COFs and the fundamental insight of photoredox mechanism for sustainable organic transformation.
文献关键词：
中图分类号：
作者姓名：
Zhuwei Li;Shi Qiu;Yurou Song;Shiyu Huang;Junfeng Gao;Licheng Sun;Jungang Hou
作者机构：
State Key Laboratory of Fine Chemicals,Frontiers Science Center for Smart Materials Oriented Chemical Engineering,School of Chemical Engineering,Dalian University of Technology,Dalian 116024,China;Laboratory of Materials Modification by Laser,Ion and Electron Beams,Dalian University of Technology,Dalian 116024,China;Center of Artificial Photosynthesis for Solar Fuels and Department of Chemistry,School of Science,Westlake University,Hangzhou 310024,China;Department of Chemistry,School of Engineering Sciences in Chemistry,Biotechnology and Health,KTH Royal Institute of Technology,Stockholm 10044,Sweden
文献出处：
引用格式：
[1]Zhuwei Li;Shi Qiu;Yurou Song;Shiyu Huang;Junfeng Gao;Licheng Sun;Jungang Hou-.Engineering single-atom active sites anchored covalent organic frameworks for efficient metallaphotoredox C—N cross-coupling reactions)[J].科学通报（英文版）,2022(19):1971-1981
A类：
metallaphotoredox,Photoredox,avails,trianiline,diformylpyridine
B类：
Engineering,single,active,sites,anchored,covalent,organic,frameworks,efficient,cross,coupling,reactions,catalysis,has,become,indispensable,solution,synthesis,small,molecules,However,precise,construction,atomic,not,only,determines,catalytic,but,also,understanding,structure,activity,relationship,Herein,develop,facile,approach,immobilize,porous,by,use,triazine,triyl,SAS,TD,catalyst,achieves,excellent,performance,visible,light,driven,carbon,nitrogen,between,aryl,bromides,amines,mild,conditions,provides,products,yields,wide,range,substrates,including,hetero,electron,deficient,rich,neutral,groups,Notably,could,recovered,from,mixture,corresponding,negligible,loss,after,several,cycles,This,promising,opportunity,upon,rational,design,COFs,fundamental,insight,mechanism,sustainable,transformation
AB值：
0.558349
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