3-isobutoxy-4-(2-pentynyl)-2-cyclopentenone

3-isobutoxy-5-methyl-4-(2-pentynyl)-2-cyclopentenone

hex-3-en-1-ol,4-methylbenzenesulfonic acid

cis-3-hexen-1-yl phenyl sulfone

(Z)-hept-4-en-1-yne