For example , nonylmagnesium bromide reacts with methyl `` p '' - chlorobenzoate to give `` p '' - nonylbenzoic acid , in the presence of Tris ( acetylacetonato ) iron ( III ) ( Fe ( acac ) 3 ) , after workup with NaOH to hydrolyze the ester , shown as follows .
For example , nonylmagnesium bromide reacts with methyl `` p '' - chlorobenzoate to give `` p '' - nonylbenzoic acid , in the presence of Tris ( acetylacetonato ) iron ( III ) , often symbolized as Fe ( acac ) 3 , after workup with NaOH to hydrolyze the ester , shown as follows .