Q.3-3-17P - Organic Chemistry (Mcmurry)

Question

Question: Sight along the C2-C3 bond of 2,3-dimethylbutane, and draw a Newman projection of the most stable conformation.

Step-by-Step Solution

Answer

Answer

Step 1: Newman Projection

The conformation of a particular molecule can be visualized using structures termed Newman projection. The carbon is rotated around a specific bond to produce several conformers in Newman projection.

Step 2: Newman projection of the most stable conformer

The most stable conformer of 2,3-dimethylbutane can be given as shown below.

 

Stable conformer of 2,3-dimethylbutane

 

This conformer is the most stable of all the conformers as the two methyl groups in this conformer are situated opposite to each other. So there is no repulsion among the bulky, methyl groups. The above conformation is the staggered conformation of 2,3-dimethylbutane.

This stable conformer is generated due to the rotation of C2 and C3.