Catalytic asymmetric synthesis of cyclic α-alkyl-amino acid derivatives by C,N-double alkylation
                                
                                    
                                        作者:Taichi Kano、Ryu Sakamoto、Haruka Mii、Yong-Gang Wang、Keiji Maruoka                                    
                                    
                                        DOI:10.1016/j.tet.2010.01.105
                                    
                                    
                                        日期:2010.6
                                    
                                    Catalytic asymmetric synthesis of various cyclic alpha-alkyl-amino acid derivatives having a tetrasubstituted alpha-carbon, such as alpha-alkylprolines has been accomplished by asymmetric phase-transfer C-alkylation of alpha-alkyl-amino acid derivatives and subsequent intramolecular N-alkylation. (C) 2010 Elsevier Ltd. All rights reserved.