On the reaction of methylmagnesium bromide with benzophenone: the effect of magnesium metal purity on kinetic data

Abstract

Previously reported complications in the interpretation of kinetic data of Grignard–ketone reactions due to by-product formation and dependence of rate constant on ketone concentrations have been eliminated by use of ultra-pure magnesium for the preparation of the Grignard reagent; however, a further previously unobserved complication involving a non first-order disappearance of ketone has been observed.