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Abstract
A convenient preparation of (Z, E) 9, 11-and (Z, Z) 9, 11-tetradecadien-1-yl and (9Z) 9, 11-tetradecenyn-1-yl acetate, alcohol and aldehyde with 99.5 % stereoisomeric purity is described. The key step of this synthesis is the carbocupration of acetylene followed by palladium catalyzed cross coupling reaction with the appropriate zinc reagent.