MHT CET202527 Apr 2025Evening ShiftChemistryAminesActual
What is IUPAC name of allylamine?
Options
- APropan-1-amine
- BProp-2-en-1-amine
- CProp-1-en-2-amine
- DPropan-2-amine
Correct answer
A. Propan-1-amine
Step-by-step solution
Allylamine has the structure CH₂=CH-CH₂-NH₂ . The longest carbon chain containing both the double bond and amino group is three carbons. Numbering prioritizes the amino group as the principal functional group, giving it position 1. This places the double bond between carbons 2 and 3, so the parent chain is prop-2-ene. With the amino group at C1, the complete IUPAC name is prop-2-en-1-amine. Evaluating the options: A) Propan-1-amine corresponds to CH₃CH₂CH₂NH₂ (saturated) B) Prop-2-en-1-amine matches CH₂=CH-CH₂-NH₂