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- W2169236500 abstract "1H and 13C NMR studies on magnesium anthracene ⋅ 3 THF (2a), which can be recrystallized from THF, indicate that magnesium has the strongest interaction with the 9,10-positions of anthracene. While the rate of formation of 2a from magnesium and anthracene in THF at 60°C is proportional to both anthracene concentration and magnesium surface area, at 25°C it is proportional only to magnesium surface area Magnesium, anthracene and THF exist in a temperature dependent, reversible equilibrium with 2a (eq. 6), the formation of 2a being favoured at lower temperatures. At higher temperatures 2a reacts with the solvent to produce ring opening of THF and insertion of butyleneoxy units in the Mg – C bonds, so that on hydrolysis the alcohols 6 and 7 are obtained. Bildungsgeschwindigkeit und Charakterisierung von Magnesiumanthracen Aufgrund kernresonanzspektroskopischer Untersuchungen (1H- und 13C-NMR) ist Magnesium im aus THF kristallisierbaren Magnesiumanthracen ⋅ 3 THF (2a) an den 9,10-Positionen des Anthracens gebunden. Die Bildungsgeschwindigkeit von 2a aus Magnesium und Anthracen ist in THF bei 60°C sowohl zur Anthracenkonzentration als auch zur Magnesiumoberfläche, bei 25°C nur zur Magnesiumoberfläche proportional. Magnesium, Anthracen und THF stehen mit 2a in einem temperaturabhängigen, reversiblen Gleichgewicht (Gl. 6), wobei tiefe Temperaturen die Bildung von 2a begünstigen. Bei erhöhten Temperaturen reagiert 2a mit dem Lösungsmittel unter Ringöffnung von THF und Einschiebung von Butylenoxy-Einheiten in die Mg – C-Bindungen, so daß nach Hydrolyse die Alkohole 6 bzw. 7 erhalten werden." @default.
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- W2169236500 date "1984-04-01" @default.
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- W2169236500 title "Rate of Formation and Characterization of Magnesium Anthracene" @default.
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- W2169236500 doi "https://doi.org/10.1002/cber.19841170410" @default.
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