(η~5-C_5H_5)(η~5-C_5H_4R)TiCl_2类化合物的新合成方法  

A New General Approach to the Synthesis of (η~5C_5H_5) (η~5C_5H_4R)· TiCl_2Compounds

作　　者：陈寿山[1] 姚文庆[1] 

机构地区：[1]南开大学元素有机化学研究所

出　　处：《化学学报》1990年第3期262-265,共4页Acta Chimica Sinica

基　　金：国家自然科学基金

摘　　要：本文报道了取代环戊二烯基负离子与[（η5-C5H5）TiCl2]2O反应生成（η5-C5H5）（η5-C5H4R）·TiCl2的新方法。研究了取代环戊二烯基负离子的空间位阻和（η5-C5H5）TiCl3,[（η5-C5H5）TiCl2]2O的结构以及反应温度对产物产率的影响。合成了七个新的（η5-C5H5）（η5-C5H4R）TiCl2类型的化合物及七个相应的二氟化合物。A new general method for the synthesis of (η~5-C_5H_5)(η~5-C_5H_4R)TiCl_2 is reported,the synthesis consists of reaction between [ (η~5-C_5H_5)TiCl_2]_2O and substituted eyelopentadienyl lithium prepared from 6, 6-dialkylfulvene with aryllithium,followed by treatment with hydrochloric acid.The manipulation is simple and the starting material is readily available.The effects of the substituted eyclopentadienyl group and electronic structure of (η~5-C_5H_5)_2TiCl_2 and [(η_5-C_5H_5)TiCl_2]_2O on yield of products were studied.seven alkyl substitutel titanocene dichlorides and difluorides,(η~5-C_5H_5) (η~5-C_5H_4R) Ti X_2(X=Cl, F) have been synthesized.

关 键 词：锂有机化合物 C5H5 C5H4R^- TiCl2 

分 类 号：O627.11[理学—有机化学]