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Issue 65, 2014
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From π-expanded coumarins to π-expanded pentacenes

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The synthesis of two novel types of π-expanded coumarins has been developed. Modified Knoevenagel bis-condensation afforded 3,9-dioxa-perylene-2,8-diones. Subsequent oxidative aromatic coupling or light driven electrocyclization reaction led to dibenzo-1,7-dioxacoronene-2,8-dione. Unparalleled synthetic simplicity, straightforward purification and superb optical properties have the potential to bring these perylene and coronene analogs towards various applications.

Graphical abstract: From π-expanded coumarins to π-expanded pentacenes

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The article was received on 25 Apr 2014, accepted on 15 Jun 2014 and first published on 16 Jun 2014

Article type: Communication
DOI: 10.1039/C4CC03078H
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Chem. Commun., 2014,50, 9105-9108

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    From π-expanded coumarins to π-expanded pentacenes

    M. K. Węcławski, M. Tasior, T. Hammann, P. J. Cywiński and D. T. Gryko, Chem. Commun., 2014, 50, 9105
    DOI: 10.1039/C4CC03078H

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