A SIMPLE STEREOSELECTIVE SYNTHESIS OF (lR,3R,5S)-1,3-DIMETHYL-2,9-DIOXABICYCLO[3,3,1]NONANE USING REGIOSELECTIVE RING-OPENING OF (R)-β-METHYL-β-PROPIOLACTONE

Abstract
A facile stereoselective synthesis of (1R,3R,5S)-1,3-dimethyl-2,9-dioxabicyclo[3.3.1]nonane was achieved from (R)-2-hydroxy-7-octen-4-one, which was easily prepared by the copper-catalyzed reaction of (R)-β-methyl-β-propiolactone with vinylmagnesium bromide.