Nadia A. Rojano-Vilchis, S. Hernández-Ortega, M. Jiménez-Estrada
Feb 10, 2012
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Journal
Acta Crystallographica Section E: Structure Reports Online
Abstract
The title compound [systematic name: (9-methoxy-3,5-dimethyl-5,6-dihydronaphtho[2,3-b]furan-4-yl)methyl 2-methylbut-2-enoate], C21H24O4, was isolated from matarique, or Psacalium peltatum (Kunth). The structure is almost planar. The angeloyloxy group makes an angle of 62.08 (2)° with the furanoeremophilane skeleton. The carbonyl O atom is disordered between two positions with a 76:24 ratio. The molecules in the crystal are joined by very weak C—H—O interactions in the ac plane.