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2-[5-(2,3-Dimethoxynaphthalen-1-yl)-4,5-dihydro-1H-pyrazol-3-yl]-3-methoxyphenol

ABSTRACT:

SUBMITTER: Sung J

PROVIDER: S-EPMC10483541 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature

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3-Meth-oxy-2-[5-(naphthalen-2-yl)-4,5-di-hydro-1H-pyrazol-3-yl]phenol.

Project description:The asymmetric unit of the title compound, C20H18N2O2, contains two independent mol-ecules in which the dihedral angles between the naphthalene ring system [r.m.s. deviations = 0.012 (1) and 0.015 (1) Å] and the benzene ring are 71.65 (6) and 74.51 (6)°. In the crystal, pairs of N-H⋯O hydrogen bonds form two independent inversion dimers with graph-set notation R 2 (2)(14). In addition, each mol-ecule contains an intra-molecular O-H⋯N hydrogen bond with an S(6) motif.

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Crystal structure of 3-meth-oxy-2-[5-(naphthalen-1-yl)-4,5-di-hydro-1H-pyrazol-3-yl]phenol.

Project description:In the title compound, C20H18N2O2, the central pyrazoline ring has an envelope conformation with the atom substituted by the naphthalene ring as the flap. It bridges a benzene ring and a naphthalene ring system which are almost normal to one another, making a dihedral angle of 82.03 (6) °. There is an intra-molecular O-H⋯N hydrogen bond forming an S(6) ring motif. In the crystal, mol-ecules are linked by pairs of N-H⋯π inter-actions, forming inversion dimers. There are also C-H⋯π inter-actions present and the dimers are linked via C-H⋯O hydrogen bonds, forming ribbons propagating along the a-axis direction.

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