ENHANCEMENT OF OPTICAL PURITY OF A PRODUCT BY REMOVING UNWANTED DIASTEREOMERS IN THE COURSE OF A CHIRAL SYNTHESIS: NEW SYNTHESIS OF THE STEREOISOMERS OF 2,8-DIMETHYL-1,7-DIOXASPIROUNDECANE, THE PHEROMONE OF ANDRENA WILKELLA

Article abstract of DOI:10.1016/S0040-4020(01)87431-7

(2R,6S,8R)-, (2S,6R,8S)- and (2R,6R,8S)-2,8-dimethyl-1,7-dioxaspiro<5.5>undecanes were synthesized, and their specific rotations and optical purities were discussed.