6533b7d3fe1ef96bd1261296
RESEARCH PRODUCT
Multiple Catenanes Derived from Calix[4]arenes
Leyong WangAnca BogdanVolker BöhmerMichael BolteMyroslav O. Vysotskysubject
MultidisciplinaryChemistryStereochemistryCatenaneRing (chemistry)description
A multicatenane is described in which two belts consisting of four annelated rings attached to the wide rims of two calix[4]arenes are interwoven in such a way that each ring of one belt penetrates two adjacent rings of the other belt and vice versa. The key step of the synthesis of this [8]catenane is the exclusive formation of preorganized heterodimers between a multimacrocyclic tetraurea calix[4]arene and an “open-chain” tetraurea calix[4]arene containing eight ω-alkenyl groups. When a tetraurea calix[4]arene containing four alkenyl groups is used, a bis-[3]catenane is formed analogously.
year | journal | country | edition | language |
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2004-05-28 | Science |