Cu-4-Pyrone complex anchored to functionalized Silica-MCM-41: as a regioselective, reusable, and effective nanocatalyst for the clean synthesis of 1H-1,2,3-triazole compounds via Click reaction

Mobile Crystalline Material (MCM-41) of the family M41S prepared by a liquid templating mechanism and hydrothermal synthesis.1 This material exhibits significant feature such as uniform shapes and nanopores with proper sizes that are well-ordered to possess arrays hexagonal channels.2 Lately, the click reaction between a terminal alkyne and organic azide (CuAAC) has found in many uses in organic synthesis. This process suffers from one or some disadvantages such as tedious workup, harsh reaction conditions, and longer reaction time.3, 4 Thus, we became concerned in the development of clean, efficient, simple, excellent yielding and eco-friendly method utilizing a novel catalyst for the synthesis of triazoles. Based on this, the Cu complex on 4-pyrone-functionalized the silica-MCM-41 nano motif has been immobilized and it is used as an excellent regioselective nanocatalyst for the synthesis of 1,4-disubstituted triazoles by click reaction. The structure of nanocatalyst was analyzed by ICP, BET, XRD, EDS, SEM, TGA, TEM, and FT-IR techniques

کلیدواژه ها:

Silica-MCM‐41‐4-pyrone‐Cu ، Nanocatalyst ، 1 ، 3-Dipolar cycloaddition ، Click reaction ، 1 ، 2 ، 3-Triazole.