Organotitanium chemistry 17: Substituent effects on the isomerization of 1-5-hexadiene catalylzed by ring- substituted titanocene hydride
作者： Yanlong Qian , Guisheng Li , Yingxia He , Weichun Chen , Bihua Li
DOI: 10.1016/0304-5102(90)85063-N
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摘要: Abstract The cyclic and linear selectivities of the isomerization 1,5-hexadiene catalyzed by a substituted titanocene hydride largely depend upon characteristics substituents. Substituents such as methoxyethyl vinyl favour formation products, whereas allyl 3-butenyl exhibit high towards 1,5-hexadiene. Factors affecting reaction process are discussed chelation some substituents on Cp rings to titanium is proposed.
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Qian Yanlong, Zhuang Junming, Lu Jiaqi, Hunag Qichen, Xu Weihua, Chen Shoushan, Studies on olefin isomerization catalyzed by transition metals: part V. highly selective isomerization of 1,5-hexadiene catalyzed by (R-Cp)2TiCl2/R'MgX Journal of Molecular Catalysis. ,vol. 38, pp. 331- 335 ,(1986) , 10.1016/0304-5102(86)85041-6
Warren J. Hehre, John A. Pople, Molecular orbital theory of the electronic structure of organic compounds. III. Ab initio studies of charge distribution using a minimal Slater-type basis Journal of the American Chemical Society. ,vol. 92, pp. 2191- 2197 ,(1970) , 10.1021/JA00711A001
Herbert Lehmkuhl, Yen-Lung Tsien, Edo Janssen, Richard Mynott, Alkenylbis(η5-cyclopentadienyl)titan-Verbindungen – Untersuchungen zur Frage der Komplexierung von CC-Bindungen an Ti Chemische Berichte. ,vol. 116, pp. 2426- 2436 ,(1983) , 10.1002/CBER.19831160705
Hans. Brintzinger, Hydride, alkyl, and alyl complexes of bis(.pi.-cyclopentadienyl)thitanium(III) Journal of the American Chemical Society. ,vol. 89, pp. 6871- 6877 ,(1967) , 10.1021/JA01002A011
Fumie Sato, Takamasa Jinbo, Masao Sato, Cp2TiCl2-catalyzed grignard reactions. 3. Reactions with esters: Efficient methodology for the synthesis of secondary alcohols and for the reduction of esters to primary alcohols Tetrahedron Letters. ,vol. 21, pp. 2175- 2178 ,(1980) , 10.1016/S0040-4039(00)78990-8
John E. Bercaw, Hans H. Brintzinger, Di-.mu.-hydrido-bis(dicyclopentadienyltitanium(III)), a transition metal complex with a diborane-like double hydrogen bridge Journal of the American Chemical Society. ,vol. 91, pp. 7301- 7306 ,(1969) , 10.1021/JA01054A018
Herbert Lehmkuhl, Yen-Lung Tsien, Titan-katalysierte Cyclisierung von 1,5-Hexadienen Chemische Berichte. ,vol. 116, pp. 2437- 2446 ,(1983) , 10.1002/CBER.19831160706
Munetaka Akita, Hajime Yasuda, Kinya Nagasuna, Akira Nakamura, Highly Stereoselective Isomerization of Monosubstituted 1-Alkenes to (E)-2-Alkenes by Catalysis of (C5Me5)2TiCl2/NaC10H8 Bulletin of the Chemical Society of Japan. ,vol. 56, pp. 554- 558 ,(1983) , 10.1246/BCSJ.56.554
Fumie Sato, Takamasa Jinbo, Masao Sato, Cp2TiCl2-catalyzed grignard reactions. 2. Reactions with ketones and aldehydes Tetrahedron Letters. ,vol. 21, pp. 2171- 2174 ,(1980) , 10.1016/S0040-4039(00)78989-1
E. Colomer, R. Corriu, Activations des reactifs de Grignard par les complexes du titane. Application du systeme “Cp2TiCl2—i-PrMgBr” comme agent reducteur Journal of Organometallic Chemistry. ,vol. 82, pp. 367- 373 ,(1974) , 10.1016/S0022-328X(00)89533-9