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3-(2,3-Di-meth-oxy-phen-yl)-2,3-di-hydro-1H-benzo[f]chromen-1-one.

ABSTRACT: In the title compound, C₂₁H₁₈O₄, the central pyran ring is in an envelope conformation and the dihedral angle between the benzene ring and naphthalene ring system is 88.31 (1)°. The meth-oxy groups at the ortho and meta positions of the benzene ring are tilted to the ring with C-C-O-C torsion angles of 105.9 (4) and 9.5 (5)°, respectively. In the crystal, pairwise C-H⋯O hydrogen bonds form R ² ₂(14) inversion dimers, which are linked by another pair of C-H⋯O hydrogen bonds to form [210] chains in the crystal.

SUBMITTER: Sung J

PROVIDER: S-EPMC9635425 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature

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3-(2,3-Di-meth-oxy-phen-yl)-2,3-di-hydro-1H-benzo[f]chromen-1-one.

Sung Jiha J

IUCrData 20220913 Pt 9

In the title compound, C21H18O4, the central pyran ring is in an envelope conformation and the dihedral angle between the benzene ring and naphthalene ring system is 88.31 (1)°. The meth-oxy groups at the ortho and meta positions of the benzene ring are tilted to the ring with C-C-O-C torsion angles of 105.9 (4) and 9.5 (5)°, respectively. In the crystal, pairwise C-H⋯O hydrogen bonds form R 2 2(14) inversion dimers, whi ...[more]

PMID: 36337455

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