The Yamashita Group@NU
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Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
Department of Molecular and Macromolecular Chemistry,
Graduate School of Engineering, Nagoya University
access to Higashiyama campus, campus map
#1 Building, room 1029 (10th floor, entrance is the 2nd floor)



(1) Synthesis of reactive group 13 element compounds and disclosure of their properties

By understanding the properties of compounds having new pattern of chemical bond and structure, we are pioneering the new method to synthesize compounds which can not be accessed with the conventional method. Especially, accumulating the knowledge about "element characteristics" which can be found by incorporating several-elements into molecule and its utilization enables us to aim creation of new substances and contribution to material chemistry. In our group, we are focusing organic molecules possessing electron-deficient group 13 elements, especially boron, to produce new bond, new structure, new reactivit, and new properties. In this context, we are conducting the following researches.

(1a) Chemistry of nucleophilic boryl anion
(1b) Chemistry of highly reactive diborane(4)

(2) Organometallic chemistry and catalysis for the development of the next-generation petrochem process
In contemporary society, human being consumes four billion metric tons of petroleum per year and 0.4 billion tons of them are used for the production of organic chemicals. All the remaining part of the petroleum are simply burned to gain energy for transportation and electricity in our dayly life. In this flow of petrochemistry, what chemistry can we do?

If we could replace the major heterogeneous catalyst in industrial petrochemical process to homogeneous catalyst with the latest technology and knowledge accumulated in the last several decades, a huge amount of energy would be saved because the homogeneous catalyst usually requires lower temperature compared to that need for heterogeneous catalyst. On the other hand, the thermo-consuming cracking processes to produce ethylene, propylene, and BTX could be replaced by a direct functionalization of saturated hydrocarbons to save energy for petrochemical process. Furthermore, after the renewable energy such as photovoltaic cells will be realized in coming next several decades, most of the petroleum should be used as a carbon resources with the technology for direct functionalization of saturated hydrocarbons. The followings are our trials to establish the next-generation petrochem process containing energy-saving catalysts and unexplored catalysts. In this context, we are conducting the following researches.

(2a) Exploring new elementary reaction such as bond cleavage by using organometallic complexes
(2b) Development of new homogeneous catalyst reforming the present petrochem processes
(2c) Development of catalyst for functionalization of alkane (especially for dehydrogenation)