[1] Amedjkouh, M. (2005) Primary Amine Catalyzed Direct Asymmetric Aldol Reaction Assisted by Water. Tetrahedron: Asymmetry, 16, 1411-1414.
http://dx.doi.org/10.1016/j.tetasy.2005.02.031
[2] Yamada, Y., Yoshikawa, N., Sasai, H. and Shibasaki, M. (1997) Direct Catalytic Asymmetric Aldol Reactions of Aldehydes with Unmodified Ketones. Angewandte Chemie International Edition in English, 36, 1871-1873.
http://dx.doi.org/10.1002/anie.199718711
[3] Dziedzic, P., Zou, W., Ibrahem, I., Sundén, H. and Córdova, A. (2006) Non-Linear Effects in Acyclic Amino Acid-Catalyzed Direct Asymmetric Aldol Reactions. Tetrahedron Letters, 47, 6657-6661.
http://dx.doi.org/10.1016/j.tetlet.2006.06.167
[4] List, B., Lerner, R.A. and Barbas, C.F. (2000) Proline-Catalyzed Direct Asymmetric Aldol Reactions. Journal of the American Chemical Society, 122, 2395-2396.
http://dx.doi.org/10.1021/ja994280y
[5] An, Z., Zhang, W., Shi, H. and He, J. (2006) An Effective Heterogeneous L-Proline Catalyst for the Asymmetric Aldol Reaction Using Anionic Clays as Intercalated Support. Journal of Catalysis, 241, 319-327.
http://dx.doi.org/10.1016/j.jcat.2006.04.035
[6] Yan, J. and Wang, L. (2009) Asymmetric Aldol Reactions Catalyzed by Efficient and Recyclable Silica-Supported Proline-Based Peptides. Chirality, 21, 413-420.
http://dx.doi.org/10.1002/chir.20603
[7] Kassem, T., Jia, X., Zhu, X.X. and Lubell, W.D. (2010) Poly(vinyl alcohol)-Graft-Poly(ethylene glycol)-Supported Hydroxyproline Catalysis of Stereoselective Aldol Reactions. In: Macromolecular Symposia, Vol. 297, Wiley-VCH Verlag, 101-107.
http://dx.doi.org/10.1002/masy.200900087
[8] Henseler, A.H., Ayats, C. and Pericàs, M.A. (2014) An Enantioselective Recyclable Polystyrene-Supported Threonine-Derived Organocatalyst for Aldol Reactions. Advanced Synthesis & Catalysis, 356, 1795-1802.
http://dx.doi.org/10.1002/adsc.201400033
[9] Marcano, D.C., Kosynkin, D.V., Berlin, J.M., Sinitskii, A., Sun, Z., Slesarev, A., Alemany, L.B., Lu, W. and Tour, J.M. (2010) Improved Synthesis of Graphene Oxide. ACS Nano, 4, 4806-4814.
http://dx.doi.org/10.1021/nn1006368
[10] Itsuno, S. and Hassan, M.M. (2014) Polymer-Immobilized Chiral Catalysts. RSC Advances, 4, 52023-52043.
http://dx.doi.org/10.1039/C4RA09561H
[11] Gruttadauria, M., Giacalone, F. and Noto, R. (2009) Water in Stereoselective Organocatalytic Reactions. Advanced Synthesis & Catalysis, 351, 33-57.
http://dx.doi.org/10.1002/adsc.200800731
[12] Paradowska, J., Stodulski, M. and Mlynarski, J. (2009) Catalysts Based on Amino Acids for Asymmetric Reactions in Water. Angewandte Chemie International Edition, 48, 4288-4297.
http://dx.doi.org/10.1002/anie.200802038
[13] Maya, V., Raj, M. and Singh, V.K. (2007) Highly Enantioselective Organocatalytic Direct Aldol Reaction in an Aqueous Medium. Organic letters, 9, 2593-2595. http://dx.doi.org/10.1021/ol071013l
[14] Giacalone, F., Gruttadauria, M., Meo, P.L., Riela, S. and Noto, R. (2008) New Simple Hydrophobic Proline Derivatives as Highly Active and Stereoselective Catalysts for the Direct Asymmetric Aldol Reaction in Aqueous Medium. Advanced Synthesis & Catalysis, 350, 2747-2760.
http://dx.doi.org/10.1002/adsc.200800555
[15] Córdova, A., Zou, W., Ibrahem, I., Reyes, E., Engqvist, M. and Liao, W.W. (2005) Acyclic Amino Acid-Catalyzed Direct Asymmetric Aldol Reactions: Alanine, the Simplest Stereoselective Organocatalyst. Chemical Communications, 2005, 3586-3588. http://dx.doi.org/10.1039/b507968n
[16] Pihko, P.M., Majander, I. and Erkkila, A. (2009) Enamine Catalysis. In: Asymmetric Organocatalysis, Springer, Berlin Heidelberg, 145-200.
http://dx.doi.org/10.1007/128_2008_21