Computational study of homogenous gold-catalyzed oxime-oxime rearrangement: Balci-Guven rearrangement

Abstract

Treatment of N-propargylated pyrrole aldoxime derivatives with gold-based catalyst unexpectedly resulted in oxime-oxime rearrangement, which led to ketoximes. This type of reorganization has not been previously observed in the literature and represents a new rearrangement called the Balci-Guven rearrangement. Based on the experimental findings, the proposed mechanistic pathway was studied. Density functional theory calculations employing wb97xd, m062x, and m06 hybrid functional methods were used to locate and discuss the energetics of the intermediates and the transition states of this rearrangement.