Abstract
We report on the synthesis of a new, supported phase transfer catalyst and its asymmetric induction. An inorganic-polymer-supported chiral crown ether was prepared by the reaction between an optically active macrocycle deriving from methyl-α-d-glucopyranoside and silica nanofibres. The inorganic carrier of the catalyst has high specific surface area due to its nanofibrous structure, which is favourable for heterogeneous catalytic reactions. SiO2 fibres were electrospun from silica sol which was prepared via sol–gel reactions from tetraethylorthosilicate. The asymmetric Michael reaction of diethyl acetamidomalonate and β-nitrostyrene was selected for the comparison of the performance of various glucopyranoside-based macrocycles. The asymmetric inductions of macrocycles provided 20–99 % enantiomeric excess. A triethoxysilyl derivative was prepared from the highly enantioselective macrocycle in order to immobilize it on the surface of the silica nanofibres. The supported glucose based monoaza-15-crown-5 type macrocycle was characterized by X-ray photoelectron spectroscopy and compared with non-supported native crown ethers in the asymmetric Michael addition. The immobilized phase-transfer catalyst generated high enantiomeric excess (82 %) in spite of the fact that it was used in a three-phase reaction.
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M. Breuer, K. Ditrich, T. Habicher, B. Hauer, M. Kesseler, R. Stürmer, T. Zelinski, Angew. Chem. Int. Ed. 43, 788 (2004)
T. Ooi, K. Maruoka, Angew. Chem. Int. Ed. 46, 4222 (2007)
K. Maruoka (ed.), Asymmetric Phase Transfer Catalysis (WILEY-VCH, Weinheim, 2008)
R. Chinchilla, P. Mazo, C. Nájera, Tetrahedron-Asymmetry 11, 3277 (2000)
O. Sadeghi, M.M. Amini, M.F.B. Bazargani, A. Mehrani, A. Aghabali, M. Adineh, V. Amani, K. Mehrani, J Inorg Organomet Polym Mater 22, 530 (2011)
P.L. Anelli, B. Czech, F. Montanari, S. Quici, J. Am. Chem. Soc. 106, 861 (1984)
S. Colonna, R. Fornasier, U. Pfeiffer, J. Chem. Soc. Perkin. Trans. 1(2), 8 (1978)
Z. Zhengpu, W. Yongmer, W. Zhen, P. Hodge, React. Funct. Polym. 41, 37 (1999)
A. Corma, S. Iborra, M. Iglesias, F. Sánchez, Catal. Lett. 82, 237 (2002)
H. Watanabe, T. Iijima, W. Fukuda, M. Tomoi, React. Funct. Polym. 37, 101 (1998)
T. Bakó, P. Bakó, G. Keglevich, P. Bombicz, M. Kubinyi, K. Pál, S. Bodor, A. Makó, L. Tőke, Tetrahedron-Asymmetry 15, 1589 (2004)
S. Aoki, S. Sasaki, K. Koga, Tetrahedron Lett. 30, 7229 (1989)
P. Bakó, E. Czinege, T. Bakó, L. Tőke, Tetrahedron-Asymmetry 10, 4539 (1999)
T. Akiyama, M. Hara, K. Fuchibe, S. Sakamoto, K. Yamaguchi, Chem. Commun. 1734 (2003)
P. Bakó, Z. Rapi, G. Keglevich, T. Szabó, P.L. Sóti, T. Vígh, A. Grűn, T. Holczbauer, Tetrahedron Lett. 52, 1473 (2011)
D.J. Cram, G.D.Y. Sogah, Chem. Commun. 18 (1981)
S.D. Alexandratos, C.L. Stine, React. Funct. Polym. 60, 3 (2004)
P. Bakó, K. Vízvárdi, S. Toppet, E. Van der Eycken, G.J. Hoornaert, L. Tőke, Tetrahedron 54, 14975 (1998)
P. Bakó, L. Tőke, J. Inclus, Phenom. Mol. 23, 195 (1995)
S. Murugesan, G.S. Sur, J.E. Mark, G. Beaucage, J Inorg Organomet Polym Mater 14, 239 (2004)
Z. Ma, H. Ji, Y. Teng, G. Dong, J. Zhou, D. Tan, J. Qiu, J. Colloid, Interface Sci. 358, 547 (2011)
S. Choi, S. Lee, S. Im, S. Kim, Y. Joo, J. Mater. Sci. Lett. 22, 891 (2003)
S. Ek, A. Root, M. Peussa, L. Niinistö, Thermochim. Acta 379, 201 (2001)
J. Kupai, S. Lévai, K. Antal, G.T. Balogh, T. Tóth, P. Huszthy, Tetrahedron-Asymmetry 23, 415 (2012)
T. Tunç, İ. Uslu, Ş. Durmuşoğlu, S. Keskin, A. Aytimur, A. Akdemir, J Inorg Organomet Polym Mater 22, 105 (2011)
J. Kelly, D.C. Sherrington, Polymer 25, 1499 (1984)
H.S. Kim, Y.-M. Song, J.S. Choi, J.W. Yang, H. Han, Tetrahedron 60, 12051 (2004)
W.H. Lee, S.J. Kim, W.J. Lee, J.G. Lee, R.C. Haddon, P.J. Reucroft, Appl. Surf. Sci. 181, 121 (2001)
Acknowledgments
The research was supported by the OTKA Research Fund (code 82426). Besides this project is supported by the New Széchenyi Plan (Project ID: TÁMOP-4.2.1/B-09/1/KMR-2010-0002).
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Péter Bakó and György Marosi have contributed equally to this work.
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Sóti, P.L., Telkes, L., Rapi, Z. et al. Synthesis of an Aza Chiral Crown Ether Grafted to Nanofibrous Silica Support and Application in Asymmetric Michael Addition. J Inorg Organomet Polym 24, 713–721 (2014). https://doi.org/10.1007/s10904-014-0037-9
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DOI: https://doi.org/10.1007/s10904-014-0037-9