An efficient and facile synthesis of highly substituted 2,6-dicyanoanilines |
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Authors: | Yi Chenyi Blum Carmen Liu Shi-Xia Frei Gabriela Neels Antonia Renaud Philippe Leutwyler Samuel Decurtins Silvio |
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Affiliation: | Departement für Chemie und Biochemie, Universit?t Bern, Freiestrasse 3, CH-3012 Bern, Switzerland. |
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Abstract: | A one-pot procedure for the synthesis of substituted 2,6-dicyanoanilines starting from readily available ynones and malononitrile has been developed. For instance, penta-1,4-diyn-3-one is converted into the acetylene-substituted aniline derivative 1 in good yield. Upon photoexcitation, this chromophore shows a strong blue emission with a high quantum yield. The ground- and the excited-state geometries, charge distributions, and excitation energies of 1 have been evaluated by ab initio calculations. |
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