When a functional group with a suffix starting with a vowel (a, e, i, o, u) is present, the carbon chain’s name is modified by removing the final ‘e’ and adding the appropriate suffix. For example, a three-carbon chain with a ketone group is named propanone (propan + one).
Explain the modification of the carbon chain name when a functional group’s name, starting with a vowel, is used as a suffix.
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When a functional group’s name, starting with a vowel (a, e, i, o, u), is used as a suffix in organic compound nomenclature, a modification is applied to the carbon chain name. Specifically, the final ‘e’ in the name of the parent hydrocarbon is removed before adding the suffix. This adjustment ensures a smooth and consistent transition between the carbon chain name and the functional group suffix. For example, a three-carbon chain with a ketone group is named propanone, where ‘propan’ (from propane) undergoes the modification by dropping the ‘e’ before adding the ketone suffix ‘one’. This systematic approach streamlines the naming process.