50. A straightforward approach to N-substituted-2H-indazol-2-amines through reductive cyclization
J. Schoene, H. Bel Abed, M. Christmann, M. Nazaré
A versatile two-step, one-pot reaction to access N-substituted-2H-indazol-2-amine derivatives has been elaborated. A diverse set of analogues was obtained by a sequential hydrazone formation and reductive cyclization in moderate to good yields from readily available starting materials. The strategy tolerates a broad range of substitutions pattern and functional groups allowing further derivatizations.