Collect. Czech. Chem. Commun. 1980, 45, 2684-2687

Glucosidation of 2-hydroxy- and 5-hydroxy-1,4-naphthoquinone

Naděžda Steinerová, Josef Cudlín and Zdenko Vaněk

Institute of Microbiology, Czechoslovak Academy of Sciences, 142 20 Prague 4


Using the Koenigs-Knorr method two isomeric monohydroxynaphthoquinones were glucosidized, i.e. 2-hydroxy-1,4-naphthoquinone (lawson, Ia) and 5-hydroxy-1,4-naphthoquinone (juglone, IIa). The structure of the corresponding glucosides Ib and IIb was proved by 1H NMR, mass, UV, VIS and IR spectra.