STEREOSELECTIVE SYNTHESIS OF (6Z,9Z)-6,9-NONADECADIENE AND (6Z,9Z)-6,9-HENEICOSADIENE , SEX PHEROMONES OF Bupa/us piniarius AND Utethesia ornatrix ... Om P. VIG, Goverdhan L. KAD*, Madan L. SHARMA, Vijay DOGRA, Sanjiv SHARMA, Mohammad A. HUQ and Arun SABHARWAL Department o/Chemistry. Panjab University. Chandigarh-160014.India ... Received December 28, 1989 Accepted March I, 1990 ... Stereoselective syntheses of (6Z, 9Z)-6,9- ...