(4)Cyclic alcohols have the prefix cyclo-,and the hydroxyl group is deemed to be on C-1. HO CH2CH3 1-ethylcyclopropanol (5)Alcohols with double or triple bonds are named using the-ol suffix on the alkene or alkyne name.Numbering gives the hydroxyl group the lowest possible number. OH (Z)-4-chlorobut-3-en-2-ol Chl0 Alcohols:Struct synth (landscape) Page 3 Ch10 Alcohols; Struct + synth (landscape) Page 3 (4) Cyclic alcohols have the prefix cyclo-, and the hydroxyl group is deemed to be on C-1. (5) Alcohols with double or triple bonds are named using the –ol suffix on the alkene or alkyne name. Numbering gives the hydroxyl group the lowest possible number. HO CH2CH3 1-ethylcyclopropanol