Cyclohexene (1) is metabolized in mammalian organisms by cytochrome P450 to cyclohexane epoxide (2), which can be hydrolyzed by epoxide hydratase to trans-1,2-cyclohexanediol (3). Further degradation of trans-1,2-cyclohexanediol (3) see on metabolism page of trans-1,2-cyclohexanediol.