TY - JOUR A1 - Freeman, PW A1 - Murphy, ST A1 - Nemorin, JE A1 - Taylor, WC T1 - The constituents of Australian Pimelea species. II. The isolation of unusual flavones from P. simplex and P. decora JF - Australian Journal of Chemistry JO - Aust. J. Chem. Y1 - 1981 VL - 34 IS - 8 SP - 1779 EP - 1784 KW - UR - https://doi.org/10.1071/CH9811779 N2 - Extraction of Pimelea simplex F. Muell. and P. decora Domin. has yielded flavone and several methoxyflavones of unusual oxygenation patterns: 2'-methoxyflavone and 7-methoxyflavone from P. simplex, and 3'-methoxyflavone, 6-methoxyflavone, 3',6-dimethoxyflavone and 2',3',6- trimethoxyflavonefrom P. decora. The structures of the substances were confirmed by synthesis from the corresponding chalcones. The 13C n.m.r, spectral data of the flavones and chalcones are tabulated. ER -