Synthesis of 1-substituted (S)-4-acetoxy-1-penten-3-ones using (S)-lactic acid as a chiral source and their synthetic reactions

Add time:07/17/2019    Source:sciencedirect.com

Ylide reaction of (S)-3-acetoxy-1-triphenylphosphoranylidene-2-butanone, derived from (S)-lactic acid, with aldehydes gives 1-substituted (S)-4-acetoxy-1-penten-3-one derivatives, which are shown to be transformed into useful chiral compounds by stereoselective reduction or the Johnson-Claisen rearrangement.

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