If an organic molecule contains both an aldehyde group () and a primary amine group (), what is the correct IUPAC nomenclature treatment for the amine functional group?

Question

If an organic molecule contains both an aldehyde group ($-CHO$) and a primary amine group ($-NH_2$), what is the correct IUPAC nomenclature treatment for the amine functional group?

Prashant Kotian · Accepted Answer

Correct answer: B. According to IUPAC priority rules, the aldehyde () group possesses higher priority than the amine () group. Therefore, the aldehyde dictates the parent suffix ('-al'), and the amine group is designated as a substituent using the prefix 'amino-'.

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