Phenacetin (shown in the margin) was once used in headache remedies but is now banned because of its potential for causing kidney damage. (a) Identify all the functional groups present in phenacetin. (b) Draw the structures of the carboxylic acid and amine needed to prepare phenacetin. <IMAGE>

Predict the amide product formed when 2,2-dimethylpropanoic acid reacts with dimethylamine.

Draw structures of the amides that can be made from the following reactants:

a. CH₃NH₂ + (CH₃)₂CHCOOH →?

Draw structures of the amides that can be made from the following reactants:

b. <IMAGE>

Predict the amide product formed when 2,2-dimethylpropanoic acid reacts with dimethylamine.