33874-92-9Relevant academic research and scientific papers
2H-chromenes from salicylaldehydes by a catalytic petasis reaction
Wang, Qian,Finn
, p. 4063 - 4065 (2000)
(Matrix presented) The Petasis condensation of vinylic or aromatic boronic acids, aromatic aldehydes, and amines is assisted by a hydroxy group adjacent to the aldehyde moiety. The products derived from salicylaldehydes and vinylboronic acids undergo cycl
Flavan derivatives useful for impairing RNA virus replication in a cell
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, (2008/06/13)
A method of treating or preventing viral infections, in particular rhinovirus infections comprising the administration of an effective amount of a flavan derivative of formula (I). STR1 Pharmaceutical compositions containing these compounds, and some nove
Reactions of Flav-2-enes and Flav-2-en-4-ones (Flavones)
Bird, T. Geoffrey C.,Brown, Ben R.,Stuart, Ian A.,Tyrrell, William R.
, p. 1831 - 1846 (2007/10/02)
Flav-2-enes, flavones, and 3-alkyl ethers of flavonols add alcohols and carboxylic acids in the presence of N-bromosuccinimide to give 2-alkoxy- and 2-acyloxy-3-bromoflavans which provide routes to cis-3-bromoflavans by reduction and to 3,4-diols by elimination and reaction with osmium tetraoxide.The 2-acyloxyflavans react with alcohols yielding 2-alkoxyflavans.Flavonols react with N-bromosuccinimide and alcohols to give bromine-free hemiacetals, the known 2,3-dialkoxy-3-hydroxyflavanones.
