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Dr. Toshifumi Dohi, Nobutaka Yamaoka, Shota Nakamura, Kohei Sumida, Koji Morimoto and Prof. Dr. Yasuyuki Kita Efficient Synthesis of a Regioregular Oligothiophene Photovoltaic Dye Molecule, MK-2, and Related Compounds: A Cooperative Hypervalent Iodine and Metal-Catalyzed Synthetic Route Chemistry - A European Journal 19

Version of Record online: 23 DEC 2012 | DOI: 10.1002/chem.201203503

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Organic dyes: An efficient route has been established to the core structure of donor–acceptor head-to-tail-linked regioregular oligothiophenes. The versatility of this new approach is highlighted in the dramatic improvement of the yield (ca. 59 % overall yield) of MK-2, a high-performance organic dye for photovoltaic applications (see scheme; Hex=hexyl).

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