Intramolecular Buchwald–Hartwig N -arylation of bicyclic hydrazines: practical access to spiro[indoline-2,3′-piperidines]
Résumé
An intramolecular Buchwald–Hartwig N -arylation of bicyclic hydrazines and the subsequent reductive cleavage of their N–N bond provide straightforward access to unprecedented spiro[indoline-2,3′-piperidine] derivatives.