Eine kurze synthese von serricornin, (4S,6S,7S)-4,6-dimethyl- 7-hydroxy-3-nonanon, dem sexualpheromon des tabakkäfers Lasioderma serricorne F., aus d-glucose
Abstract Starting from d -glucose, a novel sequence of the syntheses leading to (3 S ,5 S ,6 S )-6-ethyl-3,5-dimethyltetrahydro-2 H -pyran-2-one ( 4 ) is described. Key steps are the hydrogenation of 3,5,6-trideoxy-1,2- O -isopropylidene-3- C -methyl-α- d - glycero -hex-3,5-dienose leading to 3,5,6-trideoxy-1,2- O -isopropylidene-3- C - methyl-β- l - lyxo -hexofuranose, and the base-catalyzed cyclisation