BF<sub>3</sub>·Et<sub>2</sub>O‑Promoted Cleavage of the C<sub>sp</sub>–C<sub>sp2</sub> Bond of 2‑Propynolphenols/Anilines: Route to C2-Alkenylated Benzoxazoles and Benzimidazoles
收藏NIAID Data Ecosystem2026-03-08 收录
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A novel BF3·Et2O-promoted tandem reaction of easily prepared 2-propynolphenols/anilines and trimethylsilyl azide is developed to give C2-alkenylated benzoxazoles and benzimidazoles in moderate to good yields. Most reactions could be accomplished in 30 min at room temperature. This tandem process involves a Csp–Csp2 bond cleavage and a C–N bond formation. Moreover, both tertiary and secondary propargylic alcohols with diverse functional groups were tolerated under the mild conditions.
创建时间:
2016-02-14



