8-Mesityl-8-borafluorazene: A BN-heterocyclic Benzopentalene

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Karsten Albrecht and Dieter E. Kaufmann


Abstract

8-Mesityl-8-borafluorazene, a formally anti-aromatic benzopentalene, is prepared by cyclization of 2,2′-dilithio-1-phenylpyrrole with dimethoxymesitylborane.


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