24. Enolate Chemistry: Reactions at the Alpha-Carbon

Provide the major product after each step for the following reaction.

Draw the products of the following reactions: b. pentanoic acid + PBr₃ + Br₂, followed by hydrolysis

Show the products of the reactions of these carboxylic acids with PBr₃/Br₂ before and after hydrolysis.

(a) pentanoic acid

(b) phenylacetic acid

(c) succinic acid

(d) oxalic acid

Show how you would accomplish the following conversions in good yields. You may use any necessary reagents.

(d)

(e)

(f)

Show how you would accomplish the following conversions in good yields. You may use any necessary reagents.

(b)