名称:
                                π-Facial stereoselectivity in the diels-alder reaction-IV.1 the directing influence of proximate unsaturation
                             
                            
                                摘要:
                                In [4+2] cycloadditions with model dienes 2/3, steric and electronic factors can be differentiated by the regioselectivity observed with various dienophiles.
                             
                                                            
                                    DOI:
                                    10.1016/s0040-4039(00)79431-7