A　facile　and　effective　method　for　Rh-catalyzed　direct　ortho-alkylation　of　C-H　bonds　in　(hetero)arenes　with　commercially　available　carboxylic　acids　has　been　developed.　This　strategy　was　initiated　by　in　situ　conversion　of　carboxylic　acids　to　anhydrides　which,　without　isolation,　underwent　Rh-catalyzed　direct　decarbonylative　cross-coupling　of　aryl　carboxamides　containing　8-aminoquinoline.　The　reaction　proceeds　with　high　regioselectivity　and　exhibits　a　broad　substrate　scope　as　well　as　functional　group　tolerance.