From π-expanded coumarins to π-expanded pentacenes
| Autor: | Mariusz Tasior, Tommy Hammann, Piotr J. Cywiński, Marek K. Węcławski, Daniel T. Gryko |
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| Rok vydání: | 2014 |
| Předmět: |
Chemistry
Metals and Alloys General Chemistry Photochemistry Combinatorial chemistry Catalysis Coronene Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry.chemical_compound ddc:540 Materials Chemistry Ceramics and Composites Light driven Institut für Chemie Knoevenagel condensation Perylene |
| Zdroj: | Chem. Commun.. 50:9105-9108 |
| ISSN: | 1364-548X 1359-7345 |
| DOI: | 10.1039/c4cc03078h |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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