119712-60-6Relevant articles and documents
Studies in the synthesis of xanthones: synthesis of furanoxanthone Part 7
Patel, G. N.,Trivedi, K. N.
, p. 531 - 532 (2007/10/02)
3-Acetoxy-4-iodoxanthone (2) or 3-acetoxy-4-bromoxanthone (3), 1-bromo-2-hydroxyxanthone (5) and 2-bromo-3-hydroxy-4-methylxanthone (8) have been condensed with cuprous salt of 3-hydroxy-3-methyl-2-but-1-yne tetrahydropyranyl ether (10) in pyridine under nitrogen atmosphere to give 2-(1-hydroxy-1-methylethyl)-6H-furo xanthen-6-one (4), 2-(1-hydroxy-1-methylethyl)-4H-furo xanthen-4-one (6) and 2-isopropenyl-11-methyl-5H-furo xanthen-5-one (9), respectively.Their structures have been confirmed by IR, mass and NMR spectra.