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In the title compound, C19H23NO6, the 1,4-dihydro­pyridine ring is twisted slightly from planarity, with a maximum deviation of 0.101 (1) Å, and adopts a very flattened boat conformation. The dihedral angle formed between the plane through the four C atoms of the 1,4-dihydro­pyridine ring and the benzene ring is 84.67 (7)°. In the crystal structure, inter­molecular N—H...O and C—H...O hydrogen bonds link the mol­ecules into a three-dimensional network.

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In the title compound, C6H10N2O, the 2,3-dihydro-1H-pyrazole ring is approximately planar, with a maximum deviation of 0.013 (1) Å. Pairs of inter­molecular N—H...O hydrogen bonds link neighboring mol­ecules into dimers, generating R22(8) ring motifs. These dimers are further linked into two-dimensional arrays parallel to the bc plane by inter­molecular N—H...O hydrogen bonds. The crystal structure is further stabilized by C—H...π inter­actions.

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In the title compound, C14H18N2O3S, the 1H-pyrazole ring is approximately planar, with a maximum deviation of 0.005 (1) Å. The dihedral angle formed between the 1H-pyrazole and phenyl rings is 79.09 (5)°. Pairs of inter­molecular N—H...O and O...H...N hydrogen bonds form dimers between neighboring mol­ecules, generating R22(10) ring motifs. These dimers are further linked by intermolecular N—H...O and O—H...N hydrogen bonds into two-dimensional arrays parallel to the ac plane. The crystal structure is also stabilized by C—H...π inter­actions.
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