A Mild and Highly Efficient Synthesis of Chiral N-Dichloroacetyl-4-ethyl-1,3-oxazolidines

[摘要]：Chiral 2-amino-butanols (4 and 5) were obtained via the isolation of diastereomeric salt. Then, chiral compounds (69) were synthesized by a sequential procedure involving condensation of chiral 2-amino-butanol with ketone and dichloroacetyl chloride. All the compounds were characterized by IR, 1H NMR, 13C NMR, and element analysis. The absolute configurations of (S)-8 was determined by X-ray crystallography.

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