Transition metal-catalyzed highly efficient and novel transformations -Development of reactions using group 7 and other transition metal catalysts

Rhenium and manganese-catalyzed regioselective insertion of unsaturated molecules into aromatic and olefinic C-H bonds have been achieved. In some cases, successive intramolecular nucleophilic cyclization proceeded. We have also succeeded in regioselective insertion of alkynes into a non-strained C-C single bond of 1,3-dicarbonyl compounds using a rhenium or manganese catalyst. In addition, we have succeeded in regio-and stereo-defined cycloaddition reactions. By using a rhodium or palladium catalyst, we have achieved direct and efficient carbon-heteroatom bond formations via C-H bond activation.