First direct observation of tautomerism of monohydroxynaphthazarins by IR-spectroscopy
Some substituted monohydroxylated naphthazarins (5,8-dihydroxy-l,4-naphthoquinones) were synthesized and studied by IR-spectroscopy in aprotic organic solvents at ambient temperature. Two narrow stretching mode bands in the high frequency range 3540-3410
Glazunov, Valery P.,Tchizhova, Alla Ya.,Pokhilo, Nataly D.,Anufriev, Victor Ph.,Elyakov, George B.
p. 1751 - 1757
(2007/10/03)
Chemistry of naphthazarin derivatives 7. Determination of structures of substituted 2,6(7)-dihydroxynaphthazarins by UV and IR spectroscopy
A set of substituted 2,6- and 2,7-dihydroxynaphthazarins were synthesized. The difference in the UV spectra of alkaline alcoholic solutions of 2,6- and 2,7-dihydroxynaphthazarins allows the reliable differentiation of the structures of these compounds. Th
Glazunov,Tchizhova,Shuvalova,Anufriev
p. 88 - 94
(2007/10/03)
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