Yes. But you are making N-acetyl-2-toluidine a pre-cursor to quaalude. The reaction time is longer when using glacial acetic acid, but on the other hand it's cheap as cheapskate, you also use twice the volume of acetic acid compared to anhydride (x2). Someone who isn't me also noticed slightly better yields with anhydride.
Oh! I'm sorry, you asked about the salt. heheh, I feel stupid now, well yes... You can use any acid, you can use citric acid if you want...
Shit, I'm tired its 3 in the morning.
"Turn on, Tune in and Drop Out"