5.8 Which compound is meso? OH OH ОН 옷 옷 & 요 (a) (c) (d) (e) 앨 (b)

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Which one of these are meso?

## Question 5.8: Which compound is meso?

The image displays five different chemical structures (a to e), each depicting a cyclopentane ring with a hydroxyl group (OH) and other substituents attached. 

### Detailed Explanation of Structures:

- **Compound (a):**
  - Cyclopentane ring with an OH group pointing upwards (on a wedge) and one bond with a hashed line indicating it is pointing into the plane on the right.
  
- **Compound (b):**
  - Cyclopentane ring with an OH group also pointing upwards (on a wedge) and both substituents shown on hashed lines, implying they are pointing into the plane.
  
- **Compound (c):**
  - Cyclopentane ring with an OH group pointing upwards (on a solid wedge), and a bond with a hashed line pointing into the plane.

- **Compound (d):**
  - Cyclopentane with an OH group pointing outward (on a wedge) and another substituent pointing into the plane (hashed line).

- **Compound (e):**
  - Cyclopentane ring with an OH group on a wedge, pointing outward, and all substituents on solid lines indicating they are in the plane.

### Identify the Meso Compound:

Meso compounds are characterized by having multiple stereocenters but are optically inactive due to an internal plane of symmetry. Analyze each structure to determine which one fulfills these criteria.
Transcribed Image Text:## Question 5.8: Which compound is meso? The image displays five different chemical structures (a to e), each depicting a cyclopentane ring with a hydroxyl group (OH) and other substituents attached. ### Detailed Explanation of Structures: - **Compound (a):** - Cyclopentane ring with an OH group pointing upwards (on a wedge) and one bond with a hashed line indicating it is pointing into the plane on the right. - **Compound (b):** - Cyclopentane ring with an OH group also pointing upwards (on a wedge) and both substituents shown on hashed lines, implying they are pointing into the plane. - **Compound (c):** - Cyclopentane ring with an OH group pointing upwards (on a solid wedge), and a bond with a hashed line pointing into the plane. - **Compound (d):** - Cyclopentane with an OH group pointing outward (on a wedge) and another substituent pointing into the plane (hashed line). - **Compound (e):** - Cyclopentane ring with an OH group on a wedge, pointing outward, and all substituents on solid lines indicating they are in the plane. ### Identify the Meso Compound: Meso compounds are characterized by having multiple stereocenters but are optically inactive due to an internal plane of symmetry. Analyze each structure to determine which one fulfills these criteria.
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