Preparing Alkenes:A Preview of Elimination Reactions Dehydration Loss of water from an alcohol a Usually occurs by treatment of an alcohol with a strong acid CH3 CH3 OH H2S04,H20 THF 50C H20 1-Methylcyclohexanol 1-Methylcyclohexene (91%) Tetrahydrofuran (THF)-a common solventDehydration ▪ Loss of water from an alcohol ▪ Usually occurs by treatment of an alcohol with a strong acid Preparing Alkenes: A Preview of Elimination Reactions