Question 5: Indicate the stereochemistry at each chiral center - OH но - он : SH HO. H :ÖH : OH Br. H. :

Chemistry
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**Question 5: Indicate the stereochemistry at each chiral center**

The image contains three chemical structures, each with chiral centers that require stereochemical notation.

1. **First Structure:**
   - A carbon chain with several functional groups:
     - A top carbon is bonded to a hydroxyl group (OH) and a hydrogen atom (H).
     - The middle carbon is connected to two hydroxyl groups (OH) on opposite sides.
     - The bottom carbon also has a hydroxyl group attached.
   - Stereochemistry needs to be indicated at each chiral center (marked with bonds going out of the plane).

2. **Second Structure:**
   - A cyclohexane ring with substituents:
     - A hydroxyl group (OH) is on one side.
     - There is an oxygen atom connected to the ring by a single bond.
     - A thiol group (SH) and a chlorine atom (Cl) are also attached at different positions.
   - Indicate stereochemistry at the chiral centers, which involve atoms coming in and out of the plane.

3. **Third Structure:**
   - A bicyclic structure:
     - Contains a bridgehead carbon attached to a hydroxyl group (OH) and a bromine atom (Br).
     - There is also a double-bonded oxygen atom present.
   - Identify chiral centers and note their stereochemistry. 

In each case, the task is to assign R/S configuration at each chiral center of the molecules presented.
Transcribed Image Text:**Question 5: Indicate the stereochemistry at each chiral center** The image contains three chemical structures, each with chiral centers that require stereochemical notation. 1. **First Structure:** - A carbon chain with several functional groups: - A top carbon is bonded to a hydroxyl group (OH) and a hydrogen atom (H). - The middle carbon is connected to two hydroxyl groups (OH) on opposite sides. - The bottom carbon also has a hydroxyl group attached. - Stereochemistry needs to be indicated at each chiral center (marked with bonds going out of the plane). 2. **Second Structure:** - A cyclohexane ring with substituents: - A hydroxyl group (OH) is on one side. - There is an oxygen atom connected to the ring by a single bond. - A thiol group (SH) and a chlorine atom (Cl) are also attached at different positions. - Indicate stereochemistry at the chiral centers, which involve atoms coming in and out of the plane. 3. **Third Structure:** - A bicyclic structure: - Contains a bridgehead carbon attached to a hydroxyl group (OH) and a bromine atom (Br). - There is also a double-bonded oxygen atom present. - Identify chiral centers and note their stereochemistry. In each case, the task is to assign R/S configuration at each chiral center of the molecules presented.
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