In this article, we report a new approach toward synthesis of pyridine–imide oligomers (PIOs). Using this approach, both dimer and trimer were one-pot synthesized from acylation of monomeric monoamide with monomeric dichloride. The yield of trimer was dependent on the alkoxyl terminals: it was 30% for methoyl group, whereas it was 95% for 3-chloro-1- propoxyl terminal. Acylation of dimeric monoamide with monomeric dichloride produced ...