Efficient synthesis of a molecular knot by copper(I)-induced formation of the precursor followed by ruthenium(II)-catalysed ring closing metathesis
- 1 January 1997
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Chemical Communications
- No. 21,p. 2053-2054
- https://doi.org/10.1039/a704970f
Abstract
A double-stranded helix constructed around two copper(I) centres used as templates and bearing four terminal alkenes, is converted into a trefoil knot in 74% yield by ruthenium(II)-catalysed ring closing methathesis (RCM); the cyclic alkenes can be quantitatively reduced by catalytic hydrogenation to afford the copper(I)-complexed 82-membered knotted ring.Keywords
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