3 7 diethyl 4 8 dimethyl 1 5 cyclooctadiene July 8, 2019 16 32 64 128 3 7-dimethyl-1 6-octadiene 3 3-dimethyl-4-octyne 3 3-dimethyl-4-propyl-1 5-octadiene 3 7-dimethyl-1 6-octadien-3-ol 3 7 dimetil 2 6 octadienol