Ionic Liquid-promoted Ring-closure Reactions between 1,4-Dihydroxyanthraquinone and Diamines
Abstract
:Introduction
Results and Discussion
Entry | Diamine | Solvent and Copper salt | Reaction time (h) | Yield b (%) |
1 | ethylenediamine | [Bmim]PF6+ CuCl2 | 2 | 99 |
2 | ethylenediamine | [Bmim]PF6+ CuCl | 2 | 95 |
3 | ethylenediamine | [Bmim]Cl·CuCl | 2 | 87 |
4 | ethylenediamine | [Bmim]BF4+ CuCl | 2 | 90 |
5 | ethylenediamine | [Bmim]BF4+ CuCl2 | 2 | 96 |
6 | ethylenediamine | CuCl2 + DMF | 8 | 56 |
7 | ethylenediamine | CuCl + DMF | 8 | 42 |
8 | ethylenediamine | CuCl2 + CH2Cl2 | 8 | 50 |
9 | ethylenediamine | CuCl + CH2Cl2 | 8 | 40 |
10 | 1,2-propanediamine | [Bmim]PF6+ CuCl2 | 2 | 92 |
11 | 1,2-cyclohexanediamine | [Bmim]PF6+ CuCl2 | 2 | 80 |
12 | N-methylenthylenediamine | [Bmim]PF6+ CuCl2 | 2 | 48 |
13 | N-ethylenthylenediamine | [Bmim]PF6+ CuCl2 | 2 | 31 |
Conclusions
Experimental Section
General
General synthetic procedure
Acknowledgements
References
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- Sample availability: Contact the authors.
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Le, Z.-G.; Xie, Z.-B.; Ying, M. Ionic Liquid-promoted Ring-closure Reactions between 1,4-Dihydroxyanthraquinone and Diamines. Molecules 2006, 11, 464-468. https://doi.org/10.3390/11060464
Le Z-G, Xie Z-B, Ying M. Ionic Liquid-promoted Ring-closure Reactions between 1,4-Dihydroxyanthraquinone and Diamines. Molecules. 2006; 11(6):464-468. https://doi.org/10.3390/11060464
Chicago/Turabian StyleLe, Zhang-Gao, Zong-Bo Xie, and Min Ying. 2006. "Ionic Liquid-promoted Ring-closure Reactions between 1,4-Dihydroxyanthraquinone and Diamines" Molecules 11, no. 6: 464-468. https://doi.org/10.3390/11060464