Carboxylic Acids and their Derivatives - Result Question 57-1
57. Write down the reactions involved in the preparation of the following using the reagents indicated against in parenthesis.
“Propionic anhydride from propionaldehyde”
$ \left[\mathrm{AgNO}_3, \mathrm{NH}_4 \mathrm{OH}, \mathrm{P}_2 \mathrm{O}_5\right] $
(1984, 2M)