Regioselective Ring Opening and Isomerization Reactions of 3, 4-Epoxyesters Catalyzed by Boron Trifluoride

[摘要]：Efficient ring opening of 3,4-epoxyesters with alcohols to produce 4-alkoxy-3-hydroxyesters and their isomerization into 4-ketoesters using boron trifluoride as the catalyst are presented. Both transformations are simple and efficient methods for the synthesis of the above named synthetically useful compounds.

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