Abstract:With cis/trans-4-(trans-4'-n-propylcyclohexyl)cyclohexyl carboxylic acid as the starting material, more than 99.9% purity of trans-4-(trans-4′-n-propylcyclohexyl)cyclohexyl-ethylene was synthesized via acylation, reduction, isomerization and Wittig reaction.The total yield was 73.2%, The structure of the target compound was confirmed by IR, GC-MS and 1HNMR.