Grignard试剂同6，6－二烷基富烯反应的研究  

Studies on Reactions of 6,6-Dialkylfulvenes with Grignard Reagents

作　　者：郑庆慧[1] 刘玉龙[1] 贺峥杰[1] 陈寿山[1] 

机构地区：[1]安徽大学化学研究所,南开大学元素有机化学研究所

出　　处：《高等学校化学学报》1995年第11期1706-1709,共4页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金

摘　　要：烯丙基卤化镁和环戊二烯基溴化镁同６，６－二烷基富烯分别进行富烯环外双键的加成和还原反应，生成的取代环戊二烯基负离子用（ＣｐＴｉＣｌ＿２）＿２Ｏ（Ｃｐ＝环戊二烯基）或ＴｉＣｌ４配合，合成通式为Ｃｐ（Ｃ＿５Ｈ＿１－ＣＲＲ￣１－ＣＨ＿２ＣＨ＝ＣＨ＿２）ＴｉＣｌ＿２和（Ｃ＿５Ｈ＿４ＣＨＲＲ￣１）＿２ＴｉＣｌ＿２的化合物。对烯丙基卤化镁、环戊二烯基溴化镁同富烯的反应机理进行了探讨。Exocyclic double bond addition and reduction took place when 6,6-dialkylfulvenes reacted with allylmagnesium halide and cyclopentadienyl magnesium bromide,respectively.Some titanium compounds Cp(C5H4)CRR1 CH2CH=CH2)TiCl2 and(C5H4CHRR1)2TiCl2have been prepared by the complexation of substituted cyclopentadienyl anions obtained from the above reactions with(CpTiCl2)2O or TiCl4.However,no reaction was observed when 6,6-dialkylfulvenes were treated with ethylmagnesium bromide,n-butylmagnesium bromide,phenylmagnesium bromide,benzylmagnesium chloride, cyclopentadienyllithium and cyclopentadienylsodium,separately.Reaction mechanism of fulvenes with allylmagnesiumhalides and cyclopentadienylmagnesium bromide is discussed.

关 键 词：富烯 GRIGNARD试剂 有机钛化合物 

分 类 号：O627.21[理学—有机化学] O624.12[理学—化学]