Abstract
Synthesis, characterization and catalytic activity of Ag-Ag2S nanoparticles supported on environmentally benign cellulose matrix has been discussed. The nanoparticles carry out controlled oxidation of benzylic alcohols to aldehydes at room temperature. Same nanoparticles also carry out oxidative decarboxylation of phenylacetic acid and decarboxylation of mandelic acid derivatives to corresponding aldehydes under comparatively milder conditions. Stability and recyclability of the catalyst has been studied. The advantages of the catalyst developed in this work over other previous reports include room temperature or comparatively low temperature reaction, shorter reaction times, no requirement of stoichiometric oxidant or ligands, use of green solvents, functional group tolerance, and recyclability.
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