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- W4237454939 abstract "Abstract A highly enantioselective synthesis of 1,4‐enynes is described that proceeds through an organocatalytic reaction between propargyl alcohols and trialkenylboroxines. Our strategy relies on acid‐mediated generation of the carbocationic intermediate from propargyl alcohols followed by enantioselective alkenylation with trialkenylboroxines. A range of chiral 1,4‐enynes were obtained in moderate to good yields with high levels of enantioselectivity. Use of a highly acidic chiral N‐triflyl phosphoramide catalyst, which has two distant Lewis basic oxygen atoms, was found to be crucial for both high reactivity and selectivity in the present reaction." @default.
- W4237454939 created "2022-05-12" @default.
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- W4237454939 date "2019-05-23" @default.
- W4237454939 modified "2023-10-14" @default.
- W4237454939 title "Asymmetric Synthesis of Chiral 1,4‐Enynes through Organocatalytic Alkenylation of Propargyl Alcohols with Trialkenylboroxines" @default.
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- W4237454939 doi "https://doi.org/10.1002/ange.201904520" @default.
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