Showing papers on "Acacetin published in 1974"
TL;DR: From the methanolic mother solntion obtained in the crystallization of acetylpectoltnarin audpectolinarin, by repeated chromatography on columns of polyamide the authors have isolated, in addition to pectolinarlgenin and linaroside, three other minor components.
Abstract: From the methanolic mother solntion obtained in the crystallization of acetylpectoltnarin audpectolinarin [1] from Linaria kurd,ca by repeated chromatography on columns of polyamide we have isolated, in addition to pectolinarlgenin and linaroside [2] three other minor components. A chloroform eluate contained the flavone aglycone (I), CleH12Os, mp 258-260°C, tool wt. 284 (mass spectrometry), NMR spectrum: doublet at 7.69 ppm, J = 8 Hz, 2 H (H-2', 6'); doublet at 6.84 ppm, J = 8 Hz; 2 H (H-3', 5'); doublet at 6.41 ppm, J = 2.5 Hz, 1 H (R-6); single, at 6.37 ppm, 1 H (H-3); doublet at 6.07 ppm, J = 2.5 Hz, 1 H (H-8); and singlet at 3.77 ppm, 3 H (CHsO group) [3].
6 citations