钛和钒开环夹心化合物的合成及取代戊二烯基与Ti（Ⅱ）和V（Ⅱ）的反应

Studies on Syntheses of Open Metallocenes and Reactivity of Substituted Pentadienyl with Ti(Ⅱ)and V(Ⅱ)

以系列取代戊二烯基（包括戊二烯基）为配体与轻过渡金属Ｔｉ（Ⅱ）和Ｖ（Ⅱ）反应，合成了系列轻过渡金属开环夹心化合物，对各种取代戊二烯基与Ｔｉ（Ⅱ）和Ｖ（Ⅱ）的反应活性进行了系统的研究，发现取代基的性质、数目及取代位置决定了取代戊二烯基与Ｔｉ（Ⅱ）和Ｖ（Ⅱ）的反应活性。

Six kinds of substitute pentadienyls have been used as ligands to react with Ti(Ⅱ)and V(Ⅱ).Ten kinds of open metallocenes have been prepared.A systematic study of the reactivity of Ti(Ⅱ)and V(Ⅱ)with substitute pentadienyls have been made.The results indicate that the reactivities of substitute pentadienyls with Ti(Ⅱ)and V(Ⅱ)depend on the numbers and positions of substitutes.