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Enantioselective Addition of Boronates to o‑Quinone Methides Catalyzed by Chiral Biphenols

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Figshare2016-02-20 更新2026-04-29 收录
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https://figshare.com/articles/dataset/Enantioselective_Addition_of_Boronates_to_i_o_i_Quinone_Methides_Catalyzed_by_Chiral_Biphenols/2460640
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Chiral biphenols were found to catalyze the enantioselective asymmetric addition of aryl- or alkenylboronates to o-quinone methides. Substituted 2-styryl phenols were obtained in good yields (up to 95%) with high enantiomeric ratios (up to 98:2) in the presence of 10 mol % 3,3′-Br2-BINOL. A two-step synthesis of (S)-4-methoxydalbergione in good yield and selectivity was achieved.
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2016-02-20
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