Palladium-catalyzed intermolecular cyclization for the synthesis of various diarylfurans from aryl esters and PhI(OAc)2via iodonium ylide rearrangement induced by Pd(ii) has been reported.
Aryl sulfonyl hydrazide reacted with aryl iodide in the presence of CO to give the corresponding S-aryl thioesters.
A palladium-catalyzed carbonylative transformation of aryl iodides and sulfonyl chlorides to thioesters has been studied.