Abstract
A novel route to acyl ureas is described. Reaction of 5-(2-chlorophenyl)-2-furoyl chloride with ammonium thiocyanate first, then arylamine under phase transfer catalysis gives N-[5-(2-chlorophenyl)-2-furoyl]-N'-arylthioureas (1a-o). Compounds 1a-o on oxidation with potassium iodate respectively under reflux result in the formation of N-[5-(2-chlorophenyl)-2-furoyl]-N'-arylureas (2a-o).