6,6-dimethoxyhex-1-yne

6,6-dimethoxy-2-methyl-hex-1-ene

(R)-(-)-4-(4'-methyl-2'-oxocyclohex-3'-en-1'-yl)butyraldehyde dimethyl acetal

1,1-dimethoxy-5-(chloromethyl)-hex-5-ene

6,6-dimethoxy-2-(diphenyloxophosphoranyl)-2-trimethylsilylmethylhexan-1-ol