Dynamic transfer auto-catalysis of epoxy vitrimers enabled by the carboxylic acid/epoxy ratio based on facilely synthesized trifunctional monoesterified cyclic anhydrides

•For the first time, dynamic transfer catalysis was explored in vitrimers.•Reprocessable dynamic transferrable auto-catalyzed epoxy vitrimers were prepared.•Monoesterified cyclic anhydrides were facilely synthesized by catalyst-free melting reaction.•The mechanism of dynamic transfer auto-catalysis was disclosed.