Q.13.64 - An Introduction to General, Organic, and Biological Chemistry

Question

Identify each of the following pairs of Fischer projections as enantiomers or identical compounds: (13.2,13.3)

Step-by-Step Solution

Answer

Part (a) : 

Part (b) 

Part (c) 

Part (d) 

Step 1: Introduction (Part a)

• Enantiomers are chemical isomers that are non-superimposable mirror images of each other. 
• Therefore, two enantiomers of a chemical compound will have the same chemical bonds but completely opposite three-dimensional structures. 
• It is important to note that enantiomers are isomers that are not exactly the same as each other, and they cannot be superimposed on each other. 
• Moreover, these types of stereoisomers can be considered as mirror images of each other. 

Step 2 : Identify the Fischer projections as enantiomers or identical compounds (Part a)

• If a molecule contains Chiral C, the mirror image is not identical to each other, but enantiomers are (Chiral C is C which is attached to four different groups)

  These mirror images are Enantiomers since Chiral C is present.

Step 3: b Identify the Fischer projections as enantiomers or identical compounds

• If a molecule contains Chiral C, the mirror image is not identical to each other, but enantiomers are (Chiral C is C which is attached to four different groups)

  These mirror images are Enantiomers since Chiral C is present.

Step 4: c. Identify the Fischer projections as enantiomers or identical compounds

• If a molecule contains Chiral C, the mirror image is not identical to each other, but enantiomers are (Chiral C is C which is attached to four different groups)
• These mirror images are Enantiomers since Chiral C is present.

Step 5: d Identify the Fischer projections as enantiomers or identical compounds

• If a molecule contains Chiral C, the mirror image is not identical to each other, but enantiomers are (Chiral C is C which is attached to four different groups)
• These mirror images are Enantiomers since Chiral C is present.