二卤二茂钛合成新方法

New methods for preparing titanocene dihalides

对二卤二茂钛的合成提出了一种新方法。用双 (环戊二烯基 )二芳氧基钛与氢卤酸 HX(X=F、Br、Cl、I)制备了双 (环戊二烯基 )二卤化钛 ,该方法操作简便 ,试剂易得 ,反应温和 ,产率较高。文中还对 (C5H5) 2 Ti Cl2 及中间体 (C5H5) 2 Ti(OC6H5) 2 )的合成方法做了改进 ,使反应时间缩短 ,产率提高 ,达到6 4%～ 89%。

A new methods for preparing titanocene dihalides from (C 5H 5) 2Ti(OC 6H 5) 2 with HX(X=F,Br,Cl,I) are reported.The operation of reaction is simple and convenient,getting reagent is easy and the reaction condition is mild and the yield is higher.Otherwise,an improved synthesis method of (C 5H 5) 2TiCl 2 and (C 5H 5) 2Ti(OC 6H 5) 2 are reported.It made reaction time to shorten and yield increased,up to 64%～89%。