Preparation and catalytic properties of poly(methyl methacrylate)-supported Pd⁰ obtained from room-temperature, dark reduction of ionic aggregates of the unstable Pd²⁺ solution ionomer

Abstract

A polymer-supported Pd0 nanocatalyst is prepared by using mechanochemical reduction as the driving force for the reaction.

Resin-Immobilized Palladium Acetate and Alcohol Dehydrogenase for Chemoenzymatic Enantioselective Synthesis of Chiral Diarylmethanols

“…For unmodified epoxy resin, Pd(OAc) 2 can be immobilized by butyl acrylate skeleton of resin, which was easily to be reduced to Pd nanoparticles by ethanol (vide infra). 51 For the NH 2 -modified epoxy resin, the Having prepared the immobilized catalysts (resin-Pd-(OAc) 2 ), we investigated their catalytic performance in the Suzuki cross-coupling reaction of phenylboronic acid with benzoyl chloride, and the results are shown in Table 1. No conversion of the boronic acid substrate was detected without Pd catalyst (Table 1, entry 1).…”

“…After modification of amino resin with glutaraldehyde by the Schiff base reaction, the imine (CN) nitrogen and carbonyl (CO) oxygen can be coordinated with Pd­(OAc) 2 by the formation of an eight-membered ring (Scheme b). For unmodified epoxy resin, Pd­(OAc) 2 can be immobilized by butyl acrylate skeleton of resin, which was easily to be reduced to Pd nanoparticles by ethanol (vide infra) . For the NH 2 -modified epoxy resin, the immobilization of Pd­(OAc) 2 was also realized by Pd–N and Pd–O coordinations (Scheme c).…”