An efficient method for the synthesis of C–C connected phthalocyanine–porphyrin oligomers

An efficient one-step method for the synthesis of covalently linked phthalocyanine–porphyrin (Pc–Por) hetero-dyads and Pc–Por–Pc hetero-triads, connected directly through C–C bonds, is presented. The procedure utilizes a Pd-mediated Suzuki cross-coupling reaction of a Pc–boronate synthon and a halog...

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Bibliographic Details
Published in:Tetrahedron letters 2009-03, Vol.50 (10), p.1113-1116
Main Authors: Ali, Hasrat, Lier, Johan E. van
Format: Article
Language:English
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Summary:An efficient one-step method for the synthesis of covalently linked phthalocyanine–porphyrin (Pc–Por) hetero-dyads and Pc–Por–Pc hetero-triads, connected directly through C–C bonds, is presented. The procedure utilizes a Pd-mediated Suzuki cross-coupling reaction of a Pc–boronate synthon and a halogenated porphyrin. The two chromophores are directly linked, without spacer, through the β-pyrrolic-, meso-, and para-position of the meso-phenyl group of the porphyrins. The electronic absorption spectrum of the Pc–Por–Pc triad shows red-shifted, split Q-bands reflecting energy transfer.
ISSN:0040-4039
1873-3581
DOI:10.1016/j.tetlet.2008.12.059