Kalyanaraman L, Mohan Kumar R, Vishweshwar P, Pichai R, Narasimhan S. 5-Meth-oxy-2,2-dimethyl-6-[(2E)-2-methyl-but-2-eno-yl]-10-phenyl-2H,8H-pyrano[2,3-f]chromen-8-one (calophyllolide).
Acta Crystallogr Sect E Struct Rep Online 2010;
66:o1115. [PMID:
21579166 PMCID:
PMC2979159 DOI:
10.1107/s1600536810013577]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2010] [Accepted: 04/13/2010] [Indexed: 11/21/2022]
Abstract
The title compound, C26H24O5, was isolated from calophyllum inophyllum seeds. In the molecule, the phenyl and 2-methylbut-2-enoyl groups are almost orthogonal to the chromene fragment [C—C—C—C torsion angles = 81.4 (3) and −90.1 (2)°, respectively]. In the crystal packing, centrosymmetrically related molecules are linked by C—H⋯O contacts into dimers, which are connected via further C—H⋯O interactions into a double chain along [010].
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