882303-12-0Relevant articles and documents
2,3-Diarylxanthones as strong scavengers of reactive oxygen and nitrogen species: A structure-activity relationship study
Santos, Clementina M.M.,Freitas, Marisa,Ribeiro, Daniela,Gomes, Ana,Silva, Artur M.S.,Cavaleiro, José A.S.,Fernandes, Eduarda
scheme or table, p. 6776 - 6784 (2010/10/21)
Xanthones are a class of oxygen-containing heterocyclic compounds widely distributed in nature. The natural derivatives can present different substitutions in the xanthone core that include hydroxyl, methoxyl, prenyl and glycosyl groups. The inclusion of
Efficient syntheses of new polyhydroxylated 2,3-diaryl-9H-xanthen-9-ones
Santos, Clementina M. M.,Silva, Artur M. S.,Cavaleiro, Jose A. S.
experimental part, p. 2642 - 2660 (2009/10/23)
A large number of hydroxylated 2,3-diaryl-9/i-xanthen-9ones have been synthesised by two different approaches, starting either from 3-brom.o-2-m.elhyl-4H-ch:rom.en-4-one or from. (E)-3-brom.o-2-styryl-4H-chrom. en-4-ones. The former method involves Heck r
A novel and efficient route for the synthesis of hydroxylated 2,3-diarylxanthones
Santos, Clementina M. M.,Silva, Artur M. S.,Cavaleiro, José A. S.
, p. 3113 - 3116 (2008/09/19)
A novel, efficient and general route for the synthesis of hydroxylated 2,3-diarylxanthones is described. 3-Bromo-2-styryl-chromone, the key intermediate of this synthesis, is obtained by a Baker-Venkataraman rearrangement of the appropriate 2′-cinnamoylox
New synthesis of 2,3-diarylxanthones
Santos, Clementina M. M.,Silva, Artur M. S.,Cavaleiro, José A. S.
, p. 3095 - 3098 (2007/10/03)
A new synthesis for 2,3-diarylxanthones is described. This was accomplished by aldol condensation of 3-bromo-2-methylchromone with benzaldehydes leading to the formation of 3-bromo-2-styrylchromones, followed by Heck reaction with styrenes. Georg Thieme V
