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Unsymmetrical bipyrrole derived highly soluble and emissive β-dialkylporphycenes with good singlet oxygen generation ability

    https://doi.org/10.1142/S1088424619500950Cited by:8 (Source: Crossref)

    Four novel β-dialkylated porphycenes, i.e. 2,12-(DEPoT and DPPoT) and 2,17-(DEPoC and DPPoC) were realized for the first time in porphycene chemistry. Unsymmetrically substituted monoalkylbipyrrole dialdehydes were subjected to McMurry coupling reactions to produce the isomeric β-dialkylated porphycenes. All these porphycenes exhibit unexpectedly good solubility in common organic solvents. The positional effects of alkyl groups could be controlled through diversification in structure of porphycene cores and, as a result, their photophysical properties. DPPoT presents significant fluorescence accompanied by reasonable singlet oxygen generation ability.

    Dedicated to Professor Atsuhiro Osuka on the occasion of his 65th birthday

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