Ring compounds parent name endings

You are correct if you said cyclohexanol. The compound s ring structure contains six carbons with only single bonds so you know that the parent hydrocarbon is cyclohexane. Because an -OH group is bonded to a carbon, it is an alcohol and the name will end in -ol. No number is necessary because all carbons in the ring are equivalent. Cyclohexanol is a poisonous compound used as a solvent for certain plastics and in the manufacture of insecticides. 

Alcohols are aliphatic compounds that contain the hydroxy functional group (—OH). Aromatic compounds with an —OH group attached to the ring are called phenols. Several alcohols are well-known by common names. In the lUPAC system, the characteristic ending -ol is used to designate alcohols. Phenols are named as derivatives of the parent compound phenol. 

When one of the two substituents on the ring imparts a special name to the compound, as, for example, toluene, phenol, and aniline, then we name the compound as a derivative of that parent molecule. In this case, the special substituent occupies ring position number 1. The lUPAC system retains the common name xylene for the three isomeric dimethylbenzenes. When neither group imparts a special name, we locate the two substituents and list them in alphabetical order before the ending -benzene. The carbon of the benzene ring with the substituent of lower alphabetical ranking is numbered C-1. 

When three or more substituents are present on a ring, we specify their locations by numbers. If one of the substituents imparts a special name, then the molecule is named as a derivative of that parent molecule. If none of the substituents imparts a special name, we number them to give the smallest set of numbers and list them in alphabetical order before the ending -benzene. In the following examples, the first compound is a derivative of toluene, and the second is a derivative of phenol. Because there is no special name for the third compound, we list its three substituents in alphabetical order, followed by the word benzene. 

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