Efficient access to chiral trans-2,6-dialkyl-1,2,5,6-tetrahydropyridines via allylation of chiral imines and ring-closing metathesis
                                
                                    
                                        作者:François-Xavier Felpin、Jacques Lebreton                                    
                                    
                                        DOI:10.1016/s0040-4039(02)02586-8
                                    
                                    
                                        日期:2003.1
                                    
                                    Enantiomerically pure trans-2,6-dialkyl-1,2,5,6-tetrahydropyridines are synthesized in five steps from Garner's aldehyde in 37-44% overall yield. This strategy is based on the allylation of chiral iminoalcohols formed in situ followed by a ring-closing metathesis. (C) 2002 Elsevier Science Ltd. All rights reserved.