| Autor: |
T. P. Lavin, D. P. Melody, E. M. Philbin, A. K. Keenan, D. M. X. Donnelly, W. P. Cullen |
| Rok vydání: |
1971 |
| Předmět: |
|
| Zdroj: |
J. Chem. Soc. C. :2848-2855 |
| ISSN: |
0022-4952 |
| DOI: |
10.1039/j39710002848 |
| Popis: |
2-(α-Hydroxybenzyl)-2-methoxycoumaran-3-ones are major products in the alkaline hydrogen peroxide oxidation (AFO reaction) of 2′-hydroxy-α-methoxychalcones containing a phloroglucinol type A-ring, while flavonols predominate in the oxidation products of chalcones without a 6′-substituent. Under similar oxidation conditions, α-methyl substituted chalcones give corresponding results. Stereochemistry is assigned to the 3-methylflavan-3-ols on the basis of chemical and n.m.r. evidence. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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