found to catalyze Diels–Alder reactions of α,β-unsaturated ketones or aldehydes with conjugated dienes or cyclodienes providing the cycloaddition products in high yields. Only a small quantity of this catalyst is required to complete the Diels–Alder reaction. The developed protocol is more convenient than the procedures reported in the literature. Several cyclohexene, naphthalene and norbornene derivatives
                                    发现二
氟三(五
氟乙基)
磷烷(C 2 F 5)3 PF 2催化α,β-不饱和酮或醛与共轭二烯或环二烯的狄尔斯-阿尔德反应,可高产率地提供环加成产物。完成Diels-Alder反应只需要少量的这种催化剂。开发的协议比文献中报道的过程更方便。以中等至良好的产率获得了几种
环己烯,
萘和
降冰片烯衍
生物。