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A facile synthesis of new 2,6-bis(5- t -butyl-benzo[ b ]furan-2-ylcarbonyl)pyridines  3a–e  is described. The synthesis mainly relies on the ultrasound-assisted Rap-Stoermer reaction of 2,6-bis(bromoacetyl)pyridine ( 1 ) with  t -butyl substituted salicylaldehydes  2a–e  in MeCN with the presence of PEG-400 as catalyst. This procedure is characterized by short reaction times and good yields.

Synthesis of novel 2,6-bis(5- t -butylbenzo[ b ]furan-2-ylcarbonyl)pyridines