Unprecedented Stereochemical Reversal from Alkyl to Aryl Substituents in the Johnson-Claisen Rearrangement of Methyl 3-Hydroxy-2-methylenealkanoates

Abstract
An unprecedented stereochemical reversal from alkyl to aryl substituents in the Johnson-Claisen rearrangement of methyl 3-hydroxy-2-methylenealkanoates with triethyl orthoacetate with a plausible mechanism has been described.

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