Abstract
Hydrogenation of α,β-unsaturated acid over cinchonidine-modified Pd/C results in poor enantioselectivity in water, but the selectivity becomes much higher when Pd/C is admixed with a small amount of a hydrophobic water-insoluble organic solvent. With the admixed catalyst, the product is easily removed by separation of the aqueous phase under the hydrogen atmosphere and the remaining catalyst can be reused.
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References
Grieco PA (ed) (1997) Organic synthesis in water. Blackie Academic, London
Le CJ, Chan TH (1997) Organic reactions in aqueous media. Wiley, New York
Lindström UM (2007) Organic reactions in water, Blackwell, Oxford
Breslow R (1991) Acc Chem Res 24:159 and references therein
De Bos DE, Vankelecom IF, Jacobs PA (2000) Chiral catalyst immobilization and recycling, Wiley-VCH, Weinheim
Klabunovskii E, Smith GV, Zsigmond A (2006) Heterogeneous enantioselective hydrogenation. Springer, Dordrecht
Mallat T, Orglmeister E, Baiker A (2007) Chem Rev 107:4863
Sugimura T (2008) In: Ding K, Uozumi Y(ed) Handbook of asymmetric heterogeneous catalysis, Wiley-VCH, Verlagsgesellschaft
Fedföldi K, Szöri K, Bartók M (2003) Appl Catal A General 251:457
Perez JRG, Malthête J, Jacques JCR (1985) Acad Sc Paris, 300:169
Nitta Y, Watanabe J, Okuyama T, Sugimura T (2005) J Catal 236:164
Nitta Y, Kobiro K, Okamoto Y (1997) In: Blaser U, Baiker A, Prins P (ed) Heterogeneous catalysis and fine chemicals IV, Elsevier, Amsterdam, p. 191
Sugimura T, Uchida T, Watanabe J, Kubota T, Okamoto Y, Misaki T, Okuyama T (2009) J Catal 262:57
Nitta Y (2000) Topics Catal 13:179
Borszeky K, Mallat T, Baiker A (1996) Catal Lett 41:199
Nitta Y (1999) Chem Lett 635
Szöllösi G, Hanaoka T, Niwa S, Mizukami F, Bartók M (2005) J Catal 231:480
Nitta Y, Kobiro K (1995) Chem Lett 165
Borszeky K, Mallat T, Baiker A (1997) Tetrahedron: Asymmetry 8:3745
Huck WR, Mallat T, Baiker A (2000) J Cata 193:1
Sípos E, Tungler A (2003) React Kinet Catal Lett 80:365
Cornils B, Herrmann WA (1998) Aqueous-phase organometallic catalysis, concepts and applications, Wiley-VCH, Weinheim
Wiebus E, Cornils B (2007) In: Lindström UM (ed) Organic reactions in water Blackwell, Oxford, p. 366
Acknowledgment
This work was supported by Grant-in-Aid for Scientific Research on Priority Areas (No. 20037058, “Chemistry of Concerto Catalysis”) from MEXT of Japan, and by Global COE program from JSPS. The authors thank Emeritus Professor Okuyama for his helpful discussions, and N.E. CHEMCAT Co. for donating the Pd/C catalysts.
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Sugimura, T., Kim, T.Y. Enantioselective Hydrogenation in Water Over Chiral Modified Heterogeneous Catalyst Admixed With Organic Solvent. Catal Lett 130, 564–567 (2009). https://doi.org/10.1007/s10562-009-9907-0
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DOI: https://doi.org/10.1007/s10562-009-9907-0