Copper (triazole-5-yl)methanamine Complexes Onto MCM-41: the Synthesis of Pyridine-containing Pseudopeptides Through the 6--dig Cyclization of 1,5-enynes
Overview
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An efficient approach for the synthesis of immobilized copper (triazole-5-yl)methanamine complexes onto MCM-41 (Cu@TZMA@MCM-41), as a novel recyclable nanocatalyst, is described. This nanocatalyst was used for the synthesis of pyridine-containing pseudopeptides through a sequential Ugi/nucleophilic addition/1,5-enyne cyclization reaction and elicited good-to-excellent yields. The nanocatalyst was fully characterized by SEM, EDS, TEM, BET, ICP-OES, TGA, and XRD techniques. Furthermore, the catalyst was recovered by simple filtration and could be used for at least 5 cycles without significant loss of activity.
Robatjazi Z, Naimi-Jamal M, Tajbakhsh M Sci Rep. 2022; 12(1):4949.
PMID: 35322095 PMC: 8943188. DOI: 10.1038/s41598-022-08902-w.