Abstract
Enantioselective hydrogenation of ethyl 4-chloro-3-oxobutyrate in ionic liquid systems containing tetraethylammonium bromide, 1-butyl-3-methylimidazolium hexafluorophosphate, or 1-butyl-3-methylimidazolium trifluoromethanesulfonate in the presence of the chiral catalyst Ru-BINAP ensures a high level of asymmetric induction after at least threefold recycling of the catalyst.
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Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 10, pp. 2079–2081, October, 2004.
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Starodubtseva, E.V., Vinogradov, M.G., Pavlov, V.A. et al. Enantioselective hydrogenation of ethyl 4-chloro-3-oxobutyrate in solutions of organic salts with recycling of the catalyst Ru-BINAP. Russ Chem Bull 53, 2172–2174 (2004). https://doi.org/10.1007/s11172-005-0092-z
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DOI: https://doi.org/10.1007/s11172-005-0092-z