Stereoselective synthesis of (R)-10-methyltridecan-2-one, the sex pheromone of the southern corn rootworm, using (4S)-benzylthiazolidinethione as a chiral auxiliary
The stereoselectivesynthesis of (R)-10-methyltridecan-2-one, the sexpheromone of the southern corn rootworm, was carried out in 20.7% overall yield based on (4S)-benzylthiazolidinethione (five steps). In the crucial step, the stereogenic center was generated by an asymmetric Michael addition using enantiomerically pure (4S)-benzylthiazolidinethione as a chiralauxiliary.