A dramatic reversal in the direction of enantiofacial differentiation has been observed in a chiral phosphine mediated reaction of organocuprate with chalcone providing S- and R-products in diethyl ether and tetrahydrofuran (THF), respectively, and correlated with the pattern of coordination.
                                    在
有机铜与
查尔酮的手性膦反应中,对映异构的方向发生了戏剧性的逆转,分别在
乙醚和
四氢呋喃(THF)中产生了S-和R-产物,这与配位模式有关。