Diphosphorus tetraiodide and its application in organic synthesis

四 碘化二磷在有机合成中的应用

For each specified amount of titanium tetraiodide used there is a critical Al / Ti ratio at which the catalytic system displays highest activity below which it shows no activity and above which its activity decreases gradually ( Fig. 2 ) .

低于这一 Al/Ti 比，活性 完全 消失；高于这一Al/Ti比则活性逐渐降低（图2）。