Polymer-supported palladium-based bimetallic catalysts for the oxidative carbonylation of aniline

Polymer-supported bimetallic catalyst pvp-pdcl2-mncl2 [pvp = poly(n-vinyl-2-pyrrolidone] exhibits a high activity and selectivity for the oxidative carbonylation of aniline to carbamate ester under atmospheric pressure[v(co)/v(o-2) = 10/1]. a remarkable bimetallic synergic effect in pvp-pdcl2-mxn (m: second transition metal) gives rise to an obvious increase in the conversion and selectivity for the reaction in the presence of a base (naoac), among the m components tested, mn-pd exhibits the strongest synergic effect.