4S-ferrugineone and 4S,5S-ferrugineol as pheromones of palm weevils were synthesized in 3 and 4 steps, respectively, starting from nonane-5-one employing SAMP-/RAMP -hydrazone methodology. 5-nonanone is transformed to its corresponding RAMP hydrazone by reaction with the enantiomerically pure hydrazine RAMP. Metalation with lithium diisopropylamide (LDA) in ether to form azaenolate, followed by...

4s-ferrugineone and 4s,5s-ferrugineol as pheromones of palm weevils were synthesized in 3 and 4 steps, respectively, starting from nonane-5-one employing samp-/ramp -hydrazone methodology. 5-nonanone is transformed to its corresponding ramp hydrazone by reaction with the enantiomerically pure hydrazine ramp. metalation with lithium diisopropylamide (lda) in ether to form azaenolate, followed by...

ARTICLE INFORMATION Received: September 2, 2011 Received in revised form: November 20, 2011 Accepted: December 3, 2011 Email: A six day trial evaluating three different trapping methods for red palm weevil (RPW), Rhynchophorus ferrugineus, was conducted in a commercial coconut plantation in the Philippines. Results clearly demonstrated that the treatment composed of freshly cut coconut palm stu...