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A novel cascade organocatalysis that allows efficient and rapid access to diverse and structurally complex oxazolidin-2-ones from simple starting materials and catalysts has been developed. A possible mechanism of this reaction has been proposed based on D- and 13C-labeling experiments.
An enantioselective [4 + 1] annulation/rearrangement cascade of stable sulfur ylides and nitroolefins has been developed through an efficient axial-to-central chirality transfer with the use of a chiral BINOL-derived sulfide as a reliable stereocontroller. It can provide pharmaceutically and synthetically important oxazolidinones in high stereoselectivities… (More)
The crystal structure of the title compound, C(14)H(11)NO(4), is influenced by N-H⋯O and O-H⋯O hydrogen bonds, linking mol-ecules into one-dimensional tapes running along the  direction.
1H-1,2,4-Triazole reacted with 2-butenal in the presence of diaryl prolinol silyl ether 3 and benzonic acid to give 3-(1H-1,2,4-triazol-1-yl)butanal 4, which was subsequently reduced and then treated with various acyl chloride to generate enantioriched 3-(1H-1,2,4-triazol-1-yl)butyl benzoates 6. Some of triazoles 6 exhibited strong binding interactions with… (More)