Enantioselective Diels–Alder reaction of o-quinodimethanes by utilizing tartaric acid ester as a chiral auxiliary
                                
                                    
                                        作者:Motoki Takinami、Yutaka Ukaji、Katsuhiko Inomata                                    
                                    
                                        DOI:10.1016/j.tetasy.2006.05.025
                                    
                                    
                                        日期:2006.6
                                    
                                    The asymmetric Diels-Alder reaction of o-quinodimethanes, generated from benzocyclobutenols in situ, with fumaric acid esters was achieved by utilizing diisopropyl (R,R)-tartrate as a chiral auxiliary to afford the corresponding optically active 1,2-cis-substituted 1-hydroxy tetrahydronaphthalene derivatives with enantioselectivities up to 83% ee. (c) 2006 Elsevier Ltd. All rights reserved.