CH1012
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13
TWO FUNCTIONAL GROUPS
In an IUPAC name a func. group with higher priority gets the suffix and the lower priority the prefix. Alkenes and alkynes are infixes.
Functional grp      Suffix      Prefix        Infix
-CO2H -oic acid - -
-CHO -al oxo- -
R2C=O -one oxo- -
-OH -ol hydroxy- -
-NH2 -amine amino- -
-SH -thiol mercapto- -
-C=C -ene - -en-
-X - halo -

            4-methyl-3-penten-2-ol
High
Low