Preparation and Some Properties of Triorganosiloxy Derivatives of Cyclopentadienyl Titanium
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概要
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Several triorganosiloxy derivatives of cyclopentadienyl titanium were synthesized by the reactions of dicyclopentadienyl titanium dichloride or cyclopentadienyltitanium trichloride with triorganosilanols or their sodium salts. The products obtained include π-Cp<SUB>2</SUB>TiClOSiMe<SUB>3</SUB>, π-CpTi(OSiMe<SUB>3</SUB>)<SUB>3</SUB>, π-CpTi(OSiMe<SUB>2</SUB>Ph)<SUB>3</SUB>, π-CpTi(OSiPh<SUB>2</SUB>Me)<SUB>3</SUB>, π-CpTi(OSiPh<SUB>3</SUB>)<SUB>3</SUB>, π-CpTi(OSiPh<SUB>3</SUB>)<SUB>2</SUB>Cl and π-CpTi(OSiPh<SUB>3</SUB>)Cl<SUB>2</SUB>. Some correlations were found to exist between the substituents on silicon atoms and cyclopentadienyl ring protons in NMR spectra and the Ti–O–Si bond absorptions in IR spectra. The chemical stabilities of the Ti–O–Si bonding in the products were dependent on the nature of the organic groups attached to the silicon atoms. The chemical resistance of the products against hydrolytic cleavage was regularly increased with successive replacement of methyl groups by phenyl groups.
- 公益社団法人 日本化学会の論文
著者
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Suzuki Hideo
Department of Bioscience Research, Tsukuba Research Laboratory, Toagosei Co., Ltd.
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Takiguchi Toshio
Department of Synthetic Chemistry, Faculty of Technology, Gunma University
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