Syntheses of Unsaturated Lactones

Part I. Some Lactones of 5-Substituted-5-hydroxy-2-enoic Acids as a Synthetic Butter or Butter Cake Flavor

Abstract

Homologous unsaturated a-lactones were prepared and the nature of their flavors was investigated. Among those, lactones of 5-hydroxy-2-decenoic acid and 5-hydroxy-8-methyl-2-nonenoic acid were shown to have a flavor the most similar to a butter or butter cake flavor.