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Dr. Zhenhua Gu, Gregory B. Boursalian, Prof. Dr. Vincent Gandon, Dr. Robin Padilla, Dr. Hao Shen, Prof. Tatiana V. Timofeeva, Paul Tongwa, Prof. Dr. K. Peter C. Vollhardt and Andrey A. Yakovenko Activated Phenacenes from Phenylenes by Nickel-Catalyzed Alkyne Cycloadditions Angewandte Chemie International Edition 50

Article first published online: 26 AUG 2011 | DOI: 10.1002/anie.201103428

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Going zigzag, helical, or in-between: Angular phenylenes show a propensity for adding alkynes from the bay region in processes catalyzed by [Ni(cod)(PMe3)2] (see scheme). These transformations generate novel strain- and electronically activated phenacenes. Mechanistic studies in conjunction with DFT calculations (R=Ph) provide a plausible mechanistic picture.

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