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Updated: Feb 9, 2026

Optimization of the Ugi Reaction Using Parallel Synthesis and Automated Liquid Handling
Published on: November 11, 2008
Diversity Driven Decoration and Ligation of Fullerene by Ugi and Passerini Multicomponent Reactions
Bruno B Ravanello1, Nalin Seixas1, Oscar E D Rodrigues2
1Department of Bioorganic Chemistry, Leibniz-Institute of Plant Biochemistry, Weinberg 3, 06120, Halle, Germany.
Abstract:
Aiming at providing an efficient and versatile method for the diversity-oriented decoration and ligation of fullerenes, we report the first C60 derivatization strategy based on isocyanide-multicomponent reactions (I-MCRs). The approach comprises the use of Passerini and Ugi reactions for assembling pseudo-peptidic scaffolds (i.e., N-alkylated and depsipeptides, peptoids) on carboxylic acid-functionalized fullerenes. The method showed wide substrate scope for the oxo and isocyanide components, albeit the Ugi reaction proved efficient only for aromatic amines. The approach was successfully employed for the ligation of oligopeptides and polyethyleneglycol chains (PEG) to C60 , as well as for the construction of bis-antennary as well as PEG-tethered dimeric fullerenes. The quantum yields for the formation of 1 O2 was remarkable for the selected compounds analyzed.
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