Rearrangement of N,N-Di-tert-butoxycarbonylpyridin-4-amines and Formation of Polyfunctional Pyridines

N,N-Di-tert-butoxycarbonylpyridin-4-amines were found to be rearranged to tert-butyl 4-(tert-butoxycarbonylamino)nicotinates by treatment with LDA in THF.