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Synthesis of N-Alkylcarbazole-3-Vinylene-2-Methyl-4-Dicyanomethylene-4H-Pyran  

Chung, Pyung Jin (Department of Materials Science and Engineering, Dankook University)
Sung, Jin Hee (Department of Materials Science and Engineering, Dankook University)
Publication Information
Applied Chemistry for Engineering / v.20, no.1, 2009 , pp. 40-45 More about this Journal
Abstract
N-Alkylcarbazole-3-vinylene-2-methyl-4-dicyanomethylene-4H-pyran derivatives were synthesized by dehydration, $S_N2$, Vilsmeier, and Knoevenagel condensation. They are red-emitting materials for organic light emitting device (OLED) composed of electron donor of N-alkylcabazole-3-vinylene groups and electron acceptor of 2-methyl-4-dicyanomethylene-4H-pyran groups by a conjugated structure. The structural properties of reaction products were analyzed FT-IR and $^1H-NMR$ spectroscopy. The thermal stabilities and reactivities were measured by melting points and yields. The UV-visibles and PL properties can be determined by exitation spectra and emission spectra, respectively.
Keywords
N-methylcarbazole; N-hexylcarbazole; N-methylcarbazole-3-carbaldehyde; N-hexylcarbazole-3-carbaldehyde; N-methylcarbazole-3-vinylene-2-methyl-4-dicyanomethylene-4H-pyran; N-hexylcarbazole-3-vinylene-2-methyl-4-dicyanomethylene-4H-pyran;
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