| Abstrakt: |
In water-containing organic solvents 2-oxo-2,3-dihydronaphthoquinone derivatives are hydrated to give the corresponding 2,2-dihydroxy-2,3-dihydronaphthoquinones. The hydration is reversible; in some cases, a keto- gem-diol equilibrium is established. The susceptibility of 2-oxo-2,3-dihydronaphthoquinone derivatives for hydration depends on the donor-acceptor properties of substituents at C(3), C(6), and C(7), on whether or not hydroxy groups are present at C(5) and C(8), and on the organic solvent basicity. [ABSTRACT FROM AUTHOR] |
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