Abstract 
             
         Some new substituted mono-, di-, and tricyclic furans were prepared catalytically
            from commercial and readily available starting materials via palladium-mediated sequential
            C-C and C-O bond formation in a single operation. 
         
            
               Key words 
                
         
         
            furan - domino reaction - palladium catalyst - allylic substitution
          
       
    
   
      
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         Generally, the reaction was carried out with [Pd(η3 -C3 H5 )Cl]2  or Pd(dba)2  as palladium source and PPh3  or dppf as ligand in THF, CH2 Cl2 , or DCE at r.t. to 50 °C. When the substrate has an acetoxyl group as leaving group,
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