E. Dunkelblum et al., IDENTIFICATION OF THE FEMALE SEX-PHEROMONE OF THE ISRAELI PINE BAST SCALE MATSUCOCCUS-JOSEPHI, Tetrahedron letters, 34(17), 1993, pp. 2805-2808
(2E,4E,8E)4,6-dimethyl-2,4,8-decatrien-7-one (1) and (2E,4Z,8E)-4,6-di
methyl-2,4,8-decatrien-7-one (II), in an approximate ratio of 75:25, h
ave been identified as the female sex pheromone components of Matsucoc
cus josephi. The structure of I and II was determined by mass spectrom
etric and infrared techniques and microreactions.