Clever boxing: A cyclization–carbonylation–cyclization–coupling reaction of propargylacetates 1 or amides 2 in the presence of a palladium(II)–bisoxazoline (box) catalyst afforded symmetrical ketones of types 3 and 4, respectively, containing two heterocyclic groups in moderate to excellent yields (see scheme; tfa=trifluoroacetate). Compounds 3 were converted into ketones containing two 3(2H)‐furanone