Cyclic esters and amides are called lactones and lactams, respectively. These compounds are classified based on the carbon that is attached to the heteroatom of the ring. Classify the following compounds as a, B, y or ô lactones or lactams. Heteroatom + 8-Lactone NH NH NH I II III IV

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Cyclic esters and amides are called lactones and lactams, respectively. These compounds are classified based on the carbon that is attached to the heteroatom of the ring. Classify the following compounds as α, β, γ, or δ lactones or lactams.

**Diagram Explanation:**

1. **Upper Diagram:**
    - Shows a cyclic structure with a heteroatom (oxygen).
    - The carbons in the ring are labeled as α (alpha), β (beta), γ (gamma), and δ (delta) starting from the carbon next to the heteroatom.
    - This structure is referred to as a δ-Lactone.

2. **Lower Diagram:**
    - Contains four chemical structures labeled I to IV:
      - **I:** A four-membered lactam ring with an NH group.
      - **II:** A five-membered lactone ring with an O group.
      - **III:** A six-membered lactam ring with an NH group.
      - **IV:** A five-membered lactam ring with an NH group.
Transcribed Image Text:Cyclic esters and amides are called lactones and lactams, respectively. These compounds are classified based on the carbon that is attached to the heteroatom of the ring. Classify the following compounds as α, β, γ, or δ lactones or lactams. **Diagram Explanation:** 1. **Upper Diagram:** - Shows a cyclic structure with a heteroatom (oxygen). - The carbons in the ring are labeled as α (alpha), β (beta), γ (gamma), and δ (delta) starting from the carbon next to the heteroatom. - This structure is referred to as a δ-Lactone. 2. **Lower Diagram:** - Contains four chemical structures labeled I to IV: - **I:** A four-membered lactam ring with an NH group. - **II:** A five-membered lactone ring with an O group. - **III:** A six-membered lactam ring with an NH group. - **IV:** A five-membered lactam ring with an NH group.
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