Linear oligomers of alternating 2, 6-disubstituted pyridine (P) and N, N′-disubstituted imidazolidine-2-one (I) units have been made rapidly and in high yield with up to nine repeating units, terminating in either pyridine or imidazolidin-2-one units, or one of each. Synthetic methods include:(1) the sodium hydride-mediated condensation of N-(tert-butyl) imidazolidin-2-one with 2, 6-difluoropyridine (FPF) or with higher analogues such as F-PIP ...
