摘要:
                                A concise synthesis of enantiopure (S)- and (R)-alpha-Tfm-aspartic acid and alpha-Tfm-serine is reported. The key step involves a Strecker-type reaction on chiral CF3-oxazolidines (Fox) derived from ethyl 4,4,4-trifluoroacetoacetate (ETFAA) or ethyl trifluoropyruvate. (C) 2011 Elsevier Ltd. All rights reserved.