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- W2002195325 abstract "Die Umsetzung des Octaäthylporphins [1; (OÄP)H2] mit Aluminiumtriäthyl (AlÄt3) liefert Octaäthylporphinato-aluminiumhydroxid [2; (OÄP)AlOH]. Dieses entsteht außerdem durch Einwirkung von Di-isobutyl-aluminiumhydrid (Bu2AlH) in Tetrahydrofuran auf 1 und Aufarbeitung der entstandenen grünen Lösung mit Methanol. Die Umsetzung verläuft über das an der Luft instabile α.γ-Dihydroporphin (OÄPH2)AlOH (3), das durch Spektralvergleich mit homologem, luftstabilem (OÄPMe2)AlOH (6) identifiziert wird. In saurem Medium lagert sich 3 teilweise in ein Gemisch isomerer Octaäthylchlorinato-aluminium-Komplexe [4; (H2OÄP)AlOH] um, von denen einen charakterisiert wird. – Die OH-Gruppe in 2 läßt sich acetylieren und silylieren. – Mit (OÄP)Cu reagieren AlÄt3 und Bu2AlH leicht unter Verdrängung des Metalls. Metal Complexes with Tetrapyrrole Ligands, IV. The Reaction of Octaethylporphin with Di(isobutyl) aluminium Hydride and Triethylaluminium The reaction of octaethylporphin [1; (OÄP)H2] with triethylaluminium (AlÄt3) yields octaethylporphinato-aluminium hydroxide [2; (OÄP)AlOH]. By action of di(isobutyl)aluminium hydride (Bu2AlH) on 1 in tetrahydrofuran a green solution is obtained; work-up with methanol likewise produces 2. The α.γ-dihydroporphin (OÄPH2)AlOH (3, unstable in air) first formed is dehydrogenated during aerobic work-up, and is identified by spectral analogy with its air-stable homologue, (OÄPMe2)AlOH (6). In an acid medium 3 rearranges partially to a mixture of isomeric octaethylchlorinato-aluminium complexes [4; (H2OÄP)AlOH], one of which is characterized. – The OH group in 2 is acetylated and silylated. – Alät3 and Bu2AlH replace the metal in (OÄP)Cu very easily." @default.
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- W2002195325 date "1971-07-31" @default.
- W2002195325 modified "2023-09-27" @default.
- W2002195325 title "Metallkomplexe mit Tetrapyrrol-Liganden, IV. Umsetzung des Octaäthylporphins mit Di-isobutyl-aluminiumhydrid und Aluminiumtriäthyl" @default.
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- W2002195325 doi "https://doi.org/10.1002/jlac.19717490115" @default.
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