Mononuclear heterocyclic rearrangements. Part 7. Evidence for general base catalysis in the rearrangement of the Z-phenylhydrazone of 3-benzoyl-5-phenyl-1,2,4-oxadiazole into 2,5-diphenyl-4-benzoylamino-1,2,3-triazole in dioxan–water
Abstract
The title reaction has been studied at various pS+ and buffer concentrations. Kinetic constants for uncatalysed and catalysed pathways have been calculated. A mechanism for the rearrangement is offered.