Abstract
Reductive amination of pyrazolidinyl alkyl ketones with sodium triacetoxyborohydride or sodium tripivaloyloxyborohydride takes place diastereoselectively with the formation of aminoalkylpyrazolidines of trans structure. The volume of the substituent in the borohydrides does not affect the ratio of stereoisomers.
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Dedicated to the memory of A. A. Potekhin, renowned teacher, scientist, and editor of journal “Chemistry of Heterocyclic Compounds”
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 5, pp. 691–698, May, 2008.
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Sviridova, L.A., Golubeva, G.A., Tavtorkin, A.N. et al. Diastereoselective reductive amination of pyrazolidinyl alkyl ketones. Chem Heterocycl Comp 44, 542–548 (2008). https://doi.org/10.1007/s10593-008-0073-x
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DOI: https://doi.org/10.1007/s10593-008-0073-x