Rearrangement from the heteroantiaromatic borole to the heteroaromatic azaborine motif |
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| Authors: | Biswas Sunanda Maichle-Mössmer Cäcilia Bettinger Holger F |
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| Affiliation: | Institut für Organische Chemie, Universit?t Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany. |
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| Abstract: | Treatment of 9-chloro-9-borafluorene with N,O-bis(trimethylsilyl)hydroxylamine results in 10-trimethylsilyloxy-9-aza-10-boraphenanthrene 6b. NMR spectroscopy shows that the expected antiaromatic 9-(trimethylsilyloxyamino)-9-borafluorene 5b rearranges to the formally aromatic phenanthrene 6b at room temperature. |
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