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- W2035600471 abstract "Die Hydroaluminierung von Hexadien-(1.5) führt normalerweise nicht zu dem erwarteten dimetallierten Hexanderivat, sondern zum Cyclopentylmethyl-dialkyl-aluminium. Titantetrabutylat katalysiert die Reaktion und lenkt sie in Richtung des dimetallierten Produktes. Bei Durchführung der Reaktion ohne Katalysator, jedoch in Gegenwart von Elektronendonatoren wie Äthern oder tertiären Aminen wird ebenfalls ausschließlich das zweifach hydroaluminierte Reaktionsprodukt gebildet. Die Reaktionsgeschwindigkeit wird dabei allerdings drastisch vermindert. Titantetrabutylat katalysiert nun die Reaktion auch bei Anwesenheit der Komplexbildner außerordentlich wirksam. Durch einige tertiäre Amine oder auch durch Tetrahydrothiophen wird die katalytische Aktivität der Titan (IV)-Verbindung sogar noch verstärkt. The Catalytic Hydroalumination of 1,5-Hexadiene The hydroalumination of 1,5-hexadiene normally yields (cyclopentylmethyl)dialkylaluminium instead of the expected dimetallated hexane derivative. Titanium tetrabutoxide catalyses the reaction and favours the formation of the dimetallated product. – When the reaction is carried out in the absence of a catalyst but in the presence of electron donors such as ethers or tertiary amines, the two-fold hydroaluminated product is also formed exclusively. In such cases the reaction velocity is, however, drastically reduced. Titanium tetrabutoxide has now been found to act as an extraordinarily effective catalyst for this reaction, even in the presence of complex-forming agents. Certain amines or tetrahydrothiophene even intensify the catalytic activity of the titanium (IV) compound." @default.
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- W2035600471 title "Die katalytische Hydroaluminierung ungesättigter Verbindungen, I. Die katalytische Hydroaluminierung von Hexadien‐(1.5)" @default.
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- W2035600471 doi "https://doi.org/10.1002/cber.19701030327" @default.
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