C‐O Bond Cleavage of Diethyl Ether and Tetrahydrofurane by [(dpp‐BIAN)AlI(Et2O)] [dpp‐BIAN = 1,2‐bis[(2,6‐di‐iso‐propylphenyl)‐imino]acenaphthene] |
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| Authors: | Igor L. Fedushkin Prof. Dr. Anton N. Lukoyanov Markus Hummert Herbert Schumann Prof. Dr. |
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| Affiliation: | 1. Nizhny Novgorod/Russia, G. A. Razuvaev Institute of Organometallic Chemistry of the Russian Academy of Sciences;2. Berlin, Institut für Chemie der Technischen Universit?t |
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| Abstract: | At elevated temperatures, the aluminum complex [(dpp‐BIAN)AlI(Et2O)] ( 1 ) splits the C‐O bonds of diethyl ether and tetrahydrofurane yielding the dimeric alkoxides [(dpp‐BIAN)AlOEt]2 ( 2 ) and [(dpp‐BIAN)AlO(CH2)4I]2 ( 3 ), respectively. Already at ambient temperatures, a cleavage of the C‐O bond of THF is to observe in the reaction of 1 with CpNa in THF as confirmed by the formation of [(dpp‐BIAN)AlO(CH2)4C5H5]2 ( 4a ) and [(dpp‐BIAN)Al{O(CH2)4C5H5}(THF)] ( 4b ) in a molar ratio of 1:2. The reaction of 1 with t‐BuOK affords the monomeric alkoxide [(dpp‐BIAN)AlO‐t‐Bu(Et2O)] ( 5 ). Compounds 2 , 3 , and 4a/b were characterized by elemental analyses and IR spectra. Additionally, the structures of 2 and 3 were determined by single crystal X‐ray diffraction. |
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| Keywords: | Aluminum Diimine ligands C‐O Bond cleavage Crystal structure |
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