摘要:
2,4-Disubstituted quinolines have been synthesized by reactions of o-isocyano-beta-methoxystyrenes, which can be easily prepared from commercially available o-aminophenyl ketones in three steps, with alkyl(or aryl)lithiums in generally good yields. Subsequently, oisocyano-beta-methoxystyrenes have also proved to react efficiently with lithium dialkylamides to afford the corresponding 4-substituted N,Ndialkylquinolin-2-amines in satisfactory yields. (C) 2004 Elsevier Ltd. All rights reserved.