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- W2047544034 abstract "A convenient and practical method for the preparation of enantiomerically pure α-trifluoromethylated α-propargylamines is described. A range of enantiopure α-trifluoromethylated α-propargyl sulfinamides were obtained by the addition of lithium acetylides generated in situ with n-BuLi and terminal alkynes to diverse chiral CF3-substituted (S)-N-tert-butanesulfinyl ketimines in moderate to excellent yields (56–97%) and with uniformly excellent diastereoselectivities (>99:1) by using Ti(OiPr)4 as the catalyst and THF as the polar solvent. Enantiomerically pure α-trifluoromethylated α,α-dibranched propargyl amines were then readily obtained in excellent yields (87–97%) by acidic cleavage of the tert-butanesulfinyl group." @default.
- W2047544034 created "2016-06-24" @default.
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- W2047544034 date "2010-12-01" @default.
- W2047544034 modified "2023-10-07" @default.
- W2047544034 title "Highly diastereoselective synthesis of α-trifluoromethylated α-propargylamines by acetylide addition to chiral CF3-substituted N-tert-butanesulfinyl ketimines" @default.
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- W2047544034 doi "https://doi.org/10.1016/j.tetasy.2010.11.028" @default.
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