SCHEDULED MAINTENANCE
A new pyranoisoflavone isolated from Laburnum alpinum J. Presl. and named alpinumisoflavone has been shown by synthetic and spectroscopic studies to be 5-hydroxy-7-(p-hydroxyphenyl)-2,2-dimethyl-2H-6H-benzo-[1,2-b: 5,4-b′]dipyran-6-one (Ia).
B. Jackson, P. J. Owen and F. Scheinmann, J. Chem. Soc. C, 1971, 3389 DOI: 10.1039/J39710003389
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