Design and synthesis of spiro bis(1,2,3-triazolium) salts as chiral ionic liquids
                                
                                    
                                        作者:Yasushi Yoshida、Shinobu Takizawa、Hiroaki Sasai                                    
                                    
                                        DOI:10.1016/j.tetasy.2012.06.007
                                    
                                    
                                        日期:2012.6
                                    
                                    Room temperature chiral spiro ionic liquids 1 and 2 based on 1,2,3-triazolium salts, were synthesized via an intramolecular double Huisgen reaction. The preparation of the enantiomerically pure Spiro triazolium salts was achieved by resolution by HPLC using a chiral stationary phase column and subsequent N-dial-kylations of spiro triazoles 6 and 10. (c) 2012 Elsevier Ltd. All rights reserved.