American Chemical Society
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Template Effects in the Formation of [2]Pseudo-rotaxanes Containing Diazapyrenium Units

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journal contribution
posted on 2007-02-16, 00:00 authored by Giancarlo Doddi, Gianfranco Ercolani, Paolo Mencarelli, Giuseppe Papa
The template effects exerted by guests 14 and 15 in the ring closure reaction of 3 have been quantitatively evaluated. The rate largely increases in the presence of the two templates. The results are compared with those relative to the ring closure reaction of 1 yielding cyclobis(paraquat-p-phenylene), 2. The comparison indicates that the formation of tetracationic aromatic cycles templated by aromatic donors benefits from the use of extended π surfaces both in the acceptor and in the donor components.