Convenient synthesis of a new class of chiral hydroxymethyldihydrooxazole ligands and their application in asymmetric addition of diethylzinc to aromatic aldehydes
                                
                                    
                                        作者:Zhi-ting Li、Xin-sheng Li、Liang-chao Li、Dong-cheng Xu                                    
                                    
                                        DOI:10.1134/s1070428006040105
                                    
                                    
                                        日期:2006.4
                                    
                                    A number of chiral hydroxymethyl-substituted dihydrooxazoles were synthesized from D- or L-mandelic acid and amino alcohols. The chiral ligands thus obtained were tested as catalyst in the asymmetric addition of diethylzinc to aromatic aldehydes, and the structure-activity relationship was studied. The addition products were characterized by an enantiomeric excess of up to 91%.