Jute stem-supported palladium-NPS and use as dip-catalysts for aqueous transfer hydrogenation

Chemoselective and regioselective hydrogenation can be conducted using green sources, eg, metal nanoparticles on plant stem supports in water. Heterogeneous catalytic systems, including “dip catalysts,” can catalyze transfer hydrogenation of, eg, styrenics, unfunctionalized olefins, quinolines, and other N-heteroaromatics. Palladium nanoparticles having longest dimensions of, eg, 15 to 20 nm, may be anchored on jute plant (Corchorus genus) stem supports, ie,“green” supports (GS). Pd nanoparticles can be decorated onto the jute stem (GS) by in-situ reduction of, eg, K 2 PdCl 4, in aqueous medium at 70 C., using formic acid as the reducing agent. The Pd-GS show uniform distribution of Pd on the cellulose matrix of the jute stem, and can conduct chemoselective transfer hydrogenation of numerous styrenics, olefins, and heterocycles (including aromatics) with high functional group tolerance, even in water