New syntheses of racemic nuciferal, ar-turmerone, and ipsdienol by a ready regio- and stereo-specific allylic oxidation
Abstract
A simple regio- and stereo-specific terminal and internal allylic oxidation via benzenesulphenyl chloride addition is reported; using this method racemic nuciferal (11) and ar-turmerone (12) were synthesized from racemic α-curcumene (1a), and racemic ipsdienol (10c) from myrcene (1c).