Angewandte Chemie - International Edition p. 12440 - 12444 (2020)
Update date:2022-08-29
Topics:
Hirano, Keiichi
Nishii, Arata
Ohmori, Ken
Suzuki, Keisuke
Takiguchi, Hiromu
Takikawa, Hiroshi
Tanaka, Masato
Uchiyama, Masanobu
Yagishita, Hirotoshi
An intramolecular benzyne–phenolate [4+2] cycloaddition is reported. Benzyne precursors, having vicinal halogen-sulfonate functionalities, linked with a phenol(ate) by various tether groups undergo efficient intramolecular [4+2] cycloaddition by treatment with either Ph3MgLi or nBuLi for halogen–metal exchange to form various benzobarrelenes.
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