Naming Alcohols, Phenols, and Thiols

Alcohols are classified as primary (1°), secondary (2°), or tertiary (3°), depending on the number of organic groups bonded to the hydroxyl-bearing carbon. 

A primary (1°) alcohol A secondary (2°) alcohol A tertiary (3°) alcohol 

Simple alcohols are named in the lUPAC system as derivatives of the parent alkane, using the suffix -ol  

Select the longest carbon chain containing the hydroxyl group, and derive the parent name by replacing the -e ending of the corresponding alkane with -ol. The -e is deleted to prevent the occurrence of two adjacent vowels propanol rather than propaneol, for example. 

Number the alkane chain beginning at the end nearer the hydroxyl group. Rule  

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