365220-04-8Relevant articles and documents
Multiple catenanes based on tetraloop derivatives of calix[4]arenes
Molokanova, Olena,Podoprygorina, Ganna,Bolte, Michael,B?hmer, Volker
, p. 7220 - 7233 (2009)
Four novel tetraarylurea calix[4]arenes (4a-d) have been synthesized, substituted by ω-alkenyloxy residues in 3,5-positions of the arylurea residues. The eight alkenyl groups were pairwise connected by olefin metathesis and subsequent hydrogenation. The r