Ahn S, Lim Y, Koh D. Crystal structure of 2-(2,3-di-meth-oxy-naphthalen-1-yl)-3-hy-droxy-6-meth-oxy-4H-chromen-4-one.
Acta Crystallogr E Crystallogr Commun 2015;
71:o842-3. [PMID:
26594556 PMCID:
PMC4645031 DOI:
10.1107/s2056989015018861]
[Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 10/07/2015] [Indexed: 01/08/2023]
Abstract
In the title compound, C22H18O6, the dimeth-oxy-substituted naphthalene ring system is twisted relative to the 4H-chromenon skeleton by 88.96 (3)°. The two meth-oxy substituents are tilted from the naphthalene ring system by 1.4 (4) and 113.0 (2)°, respectively. An intra-molecular O-H⋯O hydrogen bond closes an S(5) ring motif. In the crystal, pairs of O-H⋯O hydrogen bonds form inversion dimers with R (2) 2(10) loops and C-H⋯O inter-actions connect the dimers into [010] chains.
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