Select the structure of the major product in the following reaction.
A)I
B)II
C)III
D)IV

Question

Select the structure of the major product in the following reaction.  
A)I 
B)II 
C)III 
D)IV

Quizplus · Accepted Answer

The reaction involves an SN2 substitution of the bromine with the nucleophile ethoxide. The ethoxide attacks the carbon adjacent to the bromine, and the leaving group bromine is displaced. This results in the formation of a new carbon-oxygen bond and the breaking of the carbon-bromine bond. The only product that fulfills these requirements is structure III.

Select the Structure of the Major Product in the Following