The synthesis is reported of some 3-deoxyflavylium chlorides by photocyclization of 2-hydroxychalcone precursors; the corresponding flavylium-chromenol hydration constants were determined and the pK-structure relationships are discussed in terms of the electronic and steric effects of the substituents.
SYNTHESIS, UV-VISIBLE AND H-1-NMR SPECTROSCOPIC CHARACTERISTICS AND HYDRATION OF SOME 3-DEOXYFLAVYLIUM SALTS
FALLICO, Biagio;
1994-01-01
Abstract
The synthesis is reported of some 3-deoxyflavylium chlorides by photocyclization of 2-hydroxychalcone precursors; the corresponding flavylium-chromenol hydration constants were determined and the pK-structure relationships are discussed in terms of the electronic and steric effects of the substituents.File in questo prodotto:
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