Bacteriochlorins are attractive chromophores for diverse materials and medical applications due to their intense absorption in the near-infrared (NIR) region. Synthetic bacteriochlorins from a <i>de novo</i> route have sufficient stability owing to a geminal dimethyl group in each reduced pyrrole ring, and also afford wide wavelength tunability. So far, a series of synthetic bacteriochlorins with NIR absorption from ~700 to nearly 900 nm have been prepared by introduction of a variety of substituents. In this poster, we describe a new synthesis of bacteriochlorins with β-meso annulated aromatic rings. The bacteriochlorins with extended π system absorb at wavelengths &gt; 900 nm.

Synthesis of bacteriochlorins with β-meso annulated aromatic rings

256th National Meeting (2018)

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