作者:Pierre L. Beaulieu、Jean Simon Duceppe、Carolyne Johnson                                    
                                    
                                        DOI:10.1021/jo00013a023
                                    
                                    
                                        日期:1991.6
                                    
                                    (R)- or (S)-benzyl 4-formyl-2,2-dimethyl-3-oxazolidinecarboxylate (7a) and (R)- or (S)-1,1-dimethylethyl 4-formyl-2,2-dimethyl-3-oxazolidinecarboxylate (7b), readily available from serine, react with Wittig reagents to give alkenes 8.  Selective deprotection followed by oxidation of the resulting unsaturated amino alcohols 9 provides vinylglycines 5 of defined configuration (> 95% ee) and double-bond geometry.  D-Vinylglycines are obtained from L-serine, and conversely, D-serine gives beta,gamma-unsaturated amino acids with the L configuration.  The double-bond geometry is controlled by the nature of the phosphorous ylide employed.  The scope and limitations of this new methodology for the preparation of chiral vinylglycines is examined.