The Scolytus multistriatus aggregation pheromone (S,S)-4-methyl-3-heptanol was prepd. via 2 stereoselective steps. Reaction of (Z)-2-butenyl potassium with FB(OMe)2 at -75 Deg gave (Z)-MeCH:CHCH2B(OMe)2 which reacted with EtCHO to give >60% 96:4 erythro-4- ...
1982