Linear and macrocyclic ligands containing alternating pyridine and imidazolidin-2-one units 1

O Meth-Cohn, Z Yan

Index: Meth-Cohn, Otto; Yan, Zegui Journal of the Chemical Society - Perkin Transactions 1, 1998 , # 3 p. 423 - 436

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Citation Number: 16

Abstract

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 ...