Question

The IUPAC names of the compounds A and B respectively are

 

• A. 1-Propyl-2-isopropylcyclopentane; 3-Hydroxycyclopentanamine
• B. 1-Isopropyl-2-propylcyclopentane; 3-Aminocyclopentanol
• C. 1-Isopropyl-2-propylcyclopentane; 3-Hydroxycyclopentanamine
• D. 1-Propyl-2-isopropylcyclopentane; 3-Aminocyclopentanol

Hint:

For naming complex organic compounds, ensure you follow the steps: 1. Identify the longest chain or ring structure. 2. Number the chain/ring to give the substituents the lowest possible numbers. 3. Use prefixes to describe multiple groups if present.

Answer 1

The Correct Option is B

Step 1: Let's identify the IUPAC names for the given compounds.
For compound A:
- The compound is a cyclopentane ring with a propyl group at position 1 and an isopropyl group at position 2.
- The correct IUPAC name for this compound is 1-Isopropyl-2-propylcyclopentane.
For compound B:
- The compound is a cyclopentane ring with an amino group (-NH2) attached to position 3 and a hydroxyl group (-OH) also at position 3.
- The correct IUPAC name for this compound is 3-Aminocyclopentanol.
Thus, the correct answer is 1-Isopropyl-2-propylcyclopentane for A and 3-Aminocyclopentanol for B.