The position of the -OH group is given the lowest possible number. The ring of a cyclic alcohol is numbered starting at the C bearing the -OH group. Alcohols are classified by the number of alkyl groups bonded to the carbon bearing the -OH group. In a 1 o alcohol, the -OH group is bonded to a primary carbon. We will only look at two reactions, dehydration and oxidation.
Dehydration is the reverse of the hydration reaction of alkenes.
The -OH and H on adjacent carbon atoms are removed. To lose this charge, H 2 O leaves, taking both electrons from the C-O bond. This creates a carbocation . The major product will be the most highly substituted alkene, the product with the fewest H substituents on the double bonded carbons. The more highly substituted alkene is 1-methylcyclohexene, since there is only one H substituent on the double bonded carbons.