%0 Journal Article
%T One-potmulticomponentsynthesisofunsymmetricalpolyhydroquinolinederivativeswith1,1¡¯-butylenebispyridiniumhydrogensulfateasanefficient,halogen-freeandreusableBr£¿nstedionicliquidcatalyst
%A Nader Ghaffari Khaligh
%J ´ß»¯Ñ§±¨
%P 1497-1503
%D 2014
%R 10.1016/S1872-2067(14)60087-5
%X £¿1,1'-Butylenebispyridiniumhydrogensulfateisanefficient,halogen-freeandreusableBr£¿nstedionicliquidcatalystforthesynthesisofethyl-4-aryl/heteryl-hexahydro-trimehtyl-5-oxoquinoline-3-carboxylatesbytheone-potcondensationofdimedone,aryl/heterylaldehydes,ethylacetoacetate,andammoniumacetateundersolvent-freeconditions.Thismethodhastheadvantagesofhighyield,cleanreaction,simplemethodology,andshortreactiontime.Theionicliquidcanberecycledfivetimeswithoutsignificantlossofthecatalyticactivity.
%K Unsymmetricpolyhydroquinolines
%K Br£¿nstedacidicionicliquid
%K Ultrasonication
%K Multicomponent
%K Solvent-free
%U http://www.chxb.cn/CN/abstract/abstract21363.shtml