Samenvatting
A strained dibenzoazacyclooctyne (DIBAC) derivative was introduced for the preparation of a rotaxane by strain-promoted azide-alkyne cycloaddition (SPAAC), also referred to as a copper-free click reaction. The DIBAC can efficiently act as a bulky reactive chain stopper to transform a pseudorotaxane architecture consisting of a diazo-functionalized dialkoxy-naphthalene guest and a tetracationic cyclobis(paraquat-p-phenylene) (CBPQT(4+)) host into the corresponding [2]rotaxane. Furthermore, the use of the DIBAC is demonstrated to be limited to short rigid macrocycles, as it is unable to act as stopper for a rotaxane featuring a larger crown ether macrocyclic host.
Originele taal-2 | Engels |
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Artikelnummer | 21 |
Pagina's (van-tot) | 3107-3113 |
Aantal pagina's | 7 |
Tijdschrift | European Journal of Organic Chemistry |
Volume | 2017 |
Nummer van het tijdschrift | 21 |
DOI's | |
Status | Gepubliceerd - 8 jun. 2017 |