1.
Chem Commun (Camb)
; 60(43): 5622-5625, 2024 May 23.
Artigo
em Inglês
| MEDLINE
| ID: mdl-38715529
RESUMO
We report that the use of a hydrogen-bonded pyrimidine-macrocycle complex can efficiently facilitate the threading of two bispyridinium ethylenes into four rings, as evidenced by X-ray crystallography of its precursor, offering a rare example of a doubly threaded [6]rotaxane in 91% yield. The unusual architecture is found to be stable with no dethreading despite the large ring size of the macrocycle with respect to the stopper.