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Synthesis of Cavity Extended Cyclotriveratrylenes
journal contribution
posted on 2004-02-20, 00:00 authored by Arturo Arduini, Francesco Calzavacca, Domenico Demuru, Andrea Pochini, Andrea SecchiAromatic nucleophilic substitution reaction of
cyclotriguaiacylene 1 with fluorobenzene derivatives bearing
electron-withdrawing groups X (CHO, COCH3, CN, NO2) in
the para position gives a series of cyclotriveratrylene derivatives (3a−d), where the X substituents can be transformed
to hydrogen-bond donor groups to afford new CTV-based
heteroditopic receptors. The substituents of compounds
3a−d favor the facile demethylation reaction of the CTV
derivatives. Attempts to perform alkylation reactions on
derivatives (8c,d) evidenced the formation of a stereoisomeric mixture of symmetrical and unsymmetrical compounds.
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cyclotriguaiacylene 1COCH 3Cavity Extended Cyclotriveratrylenes Aromatic nucleophilic substitution reactionalkylation reactionsstereoisomeric mixtureCTV derivativesfluorobenzene derivativescompounds 3CNCHOpara positionunsymmetrical compoundsX substituentsdemethylation reaction8 ccyclotriveratrylene derivatives
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