Synthesis of an ABCD-Type Phthalocyanine by Intramolecular Cyclization Reaction

Unsymmetrical phthalocyanines with a low symmetry can exhibit unique and intriguing properties that can facilitate their applications in certain disciplines. The synthesis of these compounds, however, has posed a great difficulty. A novel and unprecedented approach for phthalocyanine synthesis is re...

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Bibliographic Details
Published in:Organic letters 2016-07, Vol.18 (13), p.3234-3237
Main Authors: Chow, Sun Y. S, Ng, Dennis K. P
Format: Article
Language:English
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Summary:Unsymmetrical phthalocyanines with a low symmetry can exhibit unique and intriguing properties that can facilitate their applications in certain disciplines. The synthesis of these compounds, however, has posed a great difficulty. A novel and unprecedented approach for phthalocyanine synthesis is reported that involves intramolecular cyclization of prelinked tetrakisphthalonitriles. By using this strategy, the first ABCD-type phthalocyanine has been prepared in 7.2% yield.
ISSN:1523-7060
1523-7052
DOI:10.1021/acs.orglett.6b01489