Organic Chemistry · free preview

5.5 Sequence Rules for Specifying Configuration

Structural drawings provide a visual representation of stereochemistry, but a written method for indicating the three-dimensional arrangement, or configuration, of substituents at a chirality center i

1. Structural drawings provide a visual representation of stere

Structural drawings provide a visual representation of stere

2. RULE 3 Multiple-bonded atoms are equivalent to the same numb

RULE 3 Multiple-bonded atoms are equivalent to the same numb

3. Having ranked the four groups attached to a chiral carbon, w

Having ranked the four groups attached to a chiral carbon, w

4. Further examples are provided by naturally occurring (−)-gly

Further examples are provided by naturally occurring (−)-gly

5. Part 5

Part 5

6. Worked Example 5.3: Assigning Configuration to Chirality Centers

Worked Example 5.3: Assigning Configuration to Chirality Centers

7. Part 7

Part 7

8. Worked Example 5.4: Drawing the Three-Dimensional Structure of a Specific Enanti

Worked Example 5.4: Drawing the Three-Dimensional Structure of a Specific Enanti

9. Problem 5-7 (a) −H or −Br −H or −Br (b) −Cl or −Br −Cl or −B

Problem 5-7 (a) −H or −Br −H or −Br (b) −Cl or −Br −Cl or −B

10. Problem 5-11 Draw a tetrahedral representation of (S)-2-pent

Problem 5-11 Draw a tetrahedral representation of (S)-2-pent

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