Patent ID: 8975423
Filing Date: 2015-03-10
Classification: C07D

Abstract:
1. A process for forming an epoxide product, comprising: activating a catalyst with an acid or a buffer solution of the acid and a first oxidant at a first pH in the range of 3.3 to 4.5, wherein the catalyst comprises a water-soluble manganese complex having: a mononuclear species of the formula (I): or a binuclear species of the formula (II): wherein Mn is a manganese; each L is independently a polydentate ligand, each X is independently a coordinating species and each μ-X is independently a bridging coordinating species, wherein Y is a non-coordinating counter ion, and n is 1 to 2; and reacting an olefinically unsaturated compound with a second oxidant in the presence of the catalyst at acidic conditions at a second pH less than the first pH, wherein first oxidant comprises hydrogen peroxide or dilute hydrogen peroxide and the second oxidant comprises hydrogen peroxide or dilute hydrogen peroxide.