Tert-butyl 3-oxo-2,3,4,5,6,7-hexahydro-1H-pyrazolo[4,3-c]pyridine-5- carboxylate

Abstract

In the title compound, C11H17N3O 3, the pyrazole ring is approximately planar, with a maximum deviation of 0.005 (2) Å, and forms a dihedral angle of 5.69 (13)° with the plane through the six atoms of the piperidine ring. In the crystal, pairs of inter-molecular N-H⋯O hydrogen bonds form dimers with neighbouring mol-ecules, generating R 22(8) ring motifs. These dimers are further linked into two-dimensional arrays parallel to the bc plane by inter-molecular N-H⋯O and C-H⋯O hydrogen bonds.