Transition metal catalyzed carbonylation of nitrogen containing heterocycles via C H activation The dissertation is mainly concerned with the development of transition metal catalyzed carbonylation of nitrogen containing compounds via C H activation. We have described a palladium catalyzed carbonylation of aromatic C H bonds with alcohols using Mo(CO)6. We synthesized 3 methyleneisoindolin 1 ones and 2 phenylisoindolin 1 ones via C H carbonylation using Mo(CO)6. A convenient procedure for the synthesis of 3 acylindoles has been established via C H carbonylation. Furthermore we have described a copper catalyzed double carbonylation reaction using C6O6∙8H2O.<eng>