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- W2056095082 abstract "The reductive amination of 4-phenyl-4-oxobutanal and 5-phenyl-5-oxopentanal with (S)-valine methyl ester and sodium cyanoborohydride afforded the N-substituted (S)-2-phenylpyrrolidine (88% d.e.) and (S)-2-phenylpiperidine (96% d.e.), from which the levorotatory NH cyclic amines were obtained. On the other hand, the analogous reductive amination of simple ketones, 2,5 hexanedione, and 2,6-heptanedione was poorly selective." @default.
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- W2056095082 title "Reductive amination of 1,4- and 1,5-dicarbonyl compounds with (S)-valine methyl ester. Synthesis of (S)-2-phenylpyrrolidine and (S)-2-phenylpiperidine" @default.
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