Development of novel C-C bond formation based on activation of multiple bonds using cationic species

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I achieved the development of new types of reaction including carbon-carbon bond and carbon-sulfur bond formations based on the activation of multiple bonds using cationic species derived from molecular iodine or hydrogen iodide. The intra- and intermolecular reactions gave the corresponding cyclic compounds. In the case of the intramolecular reactions, I found that a structure as well as a substituent of the reactant are important to make the cyclization reaction. I also obtained the luminescent materials when the reaction of intermolecular carbon-carbon bond formation proceeded. It is suggested that these reactions can be applied to the formation of useful functional materials.