Abstract
Abstract A new synthetic method for π-conjugated fused oligosiloles has been developed by combining a rhodium-catalyzed stitching reaction and subsequent remote conjugate elimination. Aromatization-driven 1,8-, 1,10-, or 1,12-dehydration was successfully utilized and up to 3 silole units were consecutively fused in a π-conjugated manner. The structural change upon conjugate elimination was confirmed by using X-ray crystallographic analysis, and the optical and electrochemical properties of a series of newly synthesized fused oligosiloles were also examined.
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