# Problem: Sodium cyanide reacts with 2-bromobutane in dimethylsulfoxide to form a substitution product. Identify the configuration of the 2-bromobutane structure shown below. Then draw the substitution product formed when this enantiomer reacts with NaCN in DMSO, and indicate the stereochemistry of the product. Use wedge-and-dash bonds to show stereochemistry, and show explicitly the hydrogen on any asymmetric carbon. The substitution product is: a) (R)-2-bromobutane b) (S)-2-bromobutaneThe substitution product is:a) R b) S c) racemicd) achiral

###### Problem Details

Sodium cyanide reacts with 2-bromobutane in dimethylsulfoxide to form a substitution product. Identify the configuration of the 2-bromobutane structure shown below. Then draw the substitution product formed when this enantiomer reacts with NaCN in DMSO, and indicate the stereochemistry of the product.

Use wedge-and-dash bonds to show stereochemistry, and show explicitly the hydrogen on any asymmetric carbon. The substitution product is:

a) (R)-2-bromobutane

b) (S)-2-bromobutane

The substitution product is:

a) R

b) S

c) racemic

d) achiral