Funktionalisierte siliciumverbindungen mit ω-tetramethyl- und ω-pentamethylcyclopentadienylalkyl-liganden: Molekulare bausteine zur darstellung von metall-haltigen polymeren
作者:P. Jutzi、T. Heidemann、B. Neumann、H.G. Stammler
DOI:10.1016/0022-328x(94)80190-8
日期:1994.6
Peralkylated cyclopentadiene systems of the type M5C5(CH2)3Si(Me)mY3-m, which possess cyclopentadiene units connected with a functionalized silane fragment by an alkylidene spacer group, are prepared via two routes. As an example of the first route, the disiloxane [Me5C5(CH2)3Si(Me)2]2O (2) has been synthesized from the corresponding iodo compound [I(CH2)3Si(Me)2]2O (1) by reaction with Me5C5K. The
通过两种途径制备具有环戊二烯单元的M 5 C 5(CH 2)3 Si(Me)m Y 3- m型的全烷基化环戊二烯系统,该环戊二烯单元通过亚烷基间隔基与官能化的硅烷片段连接。作为第一路线的实例,已经从相应的碘化合物[I(CH 2)3 Si(Me)合成了二硅氧烷[Me 5 C 5(CH 2)3 Si(Me)2 ] 2 O(2)。2 ] 2O(1)通过与Me 5 C 5 K反应。三氯硅烷Me 5 C 5(CH 2)3 SiCl 3(4),作为通过第二种方法制备的化合物的一个实例,在1-氢硅烷化后被分离出来。带有HSiCl 3的丙-2-烯基-1,2,3,4,5-五甲基环戊-2,4-二烯(3)。两种合成方法也都适用于制备Me 4 HC 5(CH 2)n Si(Me)m Y 3-型的部分烷基化的环戊二烯系统。米。因此,ω-碘烷基三乙氧基硅烷I(CH 2) n Si(OEt) 3( n = 1,2,3)与Me
Synthesis and characterization of titanium complexes containing the 1-(3-butenyl)-2,3,4,5-tetramethylcyclopentadienyl ligand
作者:Jun Okuda、Karen E. du Plooy、Paul J. Toscano
DOI:10.1016/0022-328x(95)05452-u
日期:1995.6
A series of titaniumcomplexescontaining the 1-(3-butenyl)-2,3,4,5-tetramechylcyclopentadienyl ligand C2Me4CH2CH2CHCH2 (Cp=) have been synthesized and characterized. The dichloro complex Cp=2TiCl2 was prepared by the reaction of LiCp= and TiCl3 in dimethoxyethane, followed by oxidation using lead dichloride. Cp=2TiCl2 was converted into the dimethyl derivative Cp=2TiMe2, the molecular structure of
Okuda, Jun; Zimmermann, Karl Heinz, Chemische Berichte, 1989, vol. 122, p. 1645 - 1648
作者:Okuda, Jun、Zimmermann, Karl Heinz
DOI:——
日期:——
Coordination of a Tethered Epoxide to a Coordinatively Unsaturated Rhenium Oxo Complex
作者:Kevin P. Gable、Eric C. Brown
DOI:10.1021/om030278a
日期:2003.7.1
3,4-Epoxy-1-butyltetramethylcyclopentadienyltrioxorhenium(VII) is prepared via a multistep route from bromopentacarbonylrhenium. Reductive deoxygenation with PPh3 results in a species with NMR characteristics consistent with expectation for a rhenium(V)-epoxide complex.
Carbosilane Metallodendrimers with Titanocene Dichloride End Groups
作者:Tomáš Strašák、Jan Čermák、Jan Sýkora、Jiří Horský、Zuzana Walterová、Florian Jaroschik、Dominique Harakat
DOI:10.1021/om300559y
日期:2012.10.8
Carbosilane metallodendrimers containing substituted titanocene dichloride end groups were prepared using hydrosilylation as the capping reaction. Two complementary pathways were followed: hydrosilylation of omega-alkenyl-substituted titanocene dichloride complexes with Si H bond terminated dendrimers and hydrosilylation of vinyl terminated dendritic materials with 3-(dimethylsilyl)propyl-substituted titanocene dichloride. The former procedure provided dendrimers of the first generation with four end units and of the second generation with eight end units. The latter method gave dendrititic wedges and dendrimers up to the second generation with 16 peripheral titanocene dichloride units and molecular weight 7070 Da. Dendritic materials were purified by GPC and characterized by MALDI-TOF mass spectrometry and ESI-TOF mass spectrometry (metallodendrimers) and also by multinuclear NMR.