In the IUPAC system, primary amines are named as alkanamines by replacing the ‘e’ of the alkane with the word “amine.” For amines with multiple amino groups, positions are specified by numbering the carbon atoms with -NH₂ groups and using prefixes like di, tri. For example, H₂N–CH₂–CH₂–NH₂ is ethane-1,2-diamine.
Describe the IUPAC naming system for primary amines and amines with multiple amino groups.
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In the IUPAC naming system for primary amines, the parent alkane is named, and the suffix “-amine” is added, indicating the amino functional group. The amino group is located by specifying the carbon atom to which it is attached and assigning a number to the parent alkane chain. For amines with multiple amino groups, the prefix “diamine,” “triamine,” etc., is used to indicate the number of amino groups. The carbon atoms to which the amino groups are attached are specified, and their positions are indicated with numerical locants. The systematic approach in IUPAC nomenclature ensures clarity and precision in naming amines.