154051-48-6Relevant articles and documents
Convenient synthetic route to antimicrobial benzopyranquinones
Green, Ivan R.,Hugo, Victor I.,Oosthuisen, Francois J.,Eeden, Nestor van,Giles, Robin G. F.
, p. 15 - 22 (2007/10/03)
A general synthetic strategy has been developed for the synthesis of racemic 3,4-dihydro-3-methyl-1H-benzopyran-5,8-dione 25, trans-(1R,3R)-5,8-dihydroxy-1,3-dimethyl-4-oxo-1H-benzopyran 39, rel (1R,3R,4R)-3,4-dihydro-1,3-dimethyl-4-hydroxy-1H-benzopyran-5,8-dione 41 and the rel-(4S)-diastereoisomer 42.