Construction of New π-Electron Systems by Aromatic Fusion Reactions Utilizing Arynes

Principal Investigator


Hiroto YOSHIDA (Associate Professor, Graduate School of Engineering, Hiroshima University)

Outline of the Project

This project aims at developing new method for synthesizing aromatic p-electron systems by use of reactive intermediate arynes.  With this approach, newly constructed p-electron systems are fused with aromatic rings of arynes to give expanded p-electron systems, which will be utilizable for functional materials.

We have already developed a new three-component coupling reaction of arynes, DMF and esters (or nitriles) that produces coumarins straightforwardly.  Because this reaction allows such an acceptor as a pyridyl group to be installed at 3 position of the coumarin ring, we can facilely synthesize diverse coumarins bearing donor/acceptor substituents, being promising dyes for dye-sensitized solar cells, by use of donor-substituted arynes.

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