title: Triazolyl-Based Molecular Gels as Ligands for Autocatalytic 'Click' Reactions.
abstract: The catalytic performance of triazolyl-based molecular gels was investigated in the Huisgen 1,3-dipolar cycloaddition of alkynes and azides. Low-molecular-weight gelators derived from l-valine were synthesized and functionalized with a triazole fragment. The resultant compounds formed gels either with or without copper, in a variety of solvents of different polarity. The gelators coordinated Cu(I) and exhibited a high catalytic activity in the gel phase for the model reaction between phenylacetylene and benzylazide. Additionally, the gels were able to participate in autocatalytic synthesis and the influence of small structural changes on their performance was observed.
authors.affiliation: Departament de Química Inorgànica i Orgànica, Universitat Jaume I, 12071, Castelló, Spain.
authors.forename: Marco
authors.initials: M
authors.lastname: Araújo
authors.affiliation: Departament de Química Inorgànica i Orgànica, Universitat Jaume I, 12071, Castelló, Spain.
authors.forename: Santiago
authors.initials: S
authors.lastname: Díaz-Oltra
authors.affiliation: Departament de Química Inorgànica i Orgànica, Universitat Jaume I, 12071, Castelló, Spain. escuder@uji.es.
authors.forename: Beatriu
authors.initials: B
authors.lastname: Escuder
keywords: click chemistry; gels; heterogeneous catalysis; self-assembly; supramolecular chemistry