Transition-Metal-Free Tandem Chlorocyclization of Amines with Carboxylic AcidsAccess to Chloroimidaz

来源 :第五届岭南有机化学论坛暨华南理工大学-兰州大学有机化学双边论坛 | 被引量 : 0次 | 上传用户:g56410029uoyuhao1995
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Polysubstituted imidazo [1,2-α]pyridines(IPY) are well established as privileged scaffolds which are commonly encountered in many biological active natural products and medicinal molecules.In the past decades,much significant progress about transition metal-catalyzed synthesis of IPY derivatives has been achieved.Among them,palladium,copper,gold,and silver catalysts et al have been widely employed to develop various synthetic strategies for rapidly assembling these compounds.However,most of transition-metal salts are environmental-unfriendly to different extents,and removal of trace amounts of residual metal from pharmaceutical precursors such as IPY generally still suffers from high cost and complicate purifying procedure.Therefore developing metal-free synthetic reactions will provide a direct and powerful tool to meet these challenges.
其他文献
The ent-kaurenoids are the major component of Isodon diterpenes and exhibited a wide range of biological activities,such as anti-bacteria,anti-cancer and immuno
会议
Organic electroluminescence materials with wide viewing angle,low power consumption,fast response,simple process,achieve the full color display.It have be used
会议
The O-glycosylation method has been of particular interest due to the rapid development of synthetic and biological studies of oligosaccharides and natural prod
会议
β-Aryl carbonyl compounds have drawn much attention owing to the prevalence of this fundamental building blocks in pharmaceuticals and biologically active natu
会议
Carbon dioxide(CO2) is an abundant and renewable C1 feedstock for the synthesis of a variety of valuable chemicals.Thus,the development of novel and efficient m
会议
An efficient copper-catalyzed method for the synthesis of 2-haloimidazopyridines with aminopyridines and haloalkynes using molecular oxygen as oxidant in a one-
会议
在过去几十年,钯催化的烯烃和炔烃的高效转化,作为一种有力的构建碳碳键与碳杂键的方法,已经引起越来越多的关注.其次,经常性地显示生物活性的含氮杂环是许多具有生物活性天
会议
The conversion of carbon dioxide(CO2) into valuable chemicals has received much attention in recent years not only because CO2 is one of the major anthropogenic
会议
Aryl sulfones are commonly encountered in natural products,biologically-active molecules and material chemistry.Traditional cross-couplings of arylhalides,arylb
会议
Transition metal-catalyzed C-H insertion of carbenoids represents a powerful tool for constructing C-C and C-X bonds.However,despite enormous progress in this f
会议