SEARCH Articles Figures Tables 2,3-Pyridine dicarboxylic anhydride) Acetic anhydride-Pyridine Anhydrides Nucleophilic catalyst, pyridine Chromic anhydride-Pyridine Pyridine 1-oxide reaction with acetic anhydride Pyridine sulfuric anhydride Pyridine, 4-benzylacid anhydride synthesis Pyridine-sulfonic anhydride, adduct Pyridines trifluoromethanesulfonic anhydride Seleninic anhydride, 2-pyridine