期刊
ORGANIC & BIOMOLECULAR CHEMISTRY
卷 9, 期 5, 页码 1474-1478出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0ob00935k
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资金
- French Ministry of Higher Education and Research (MESR)
The reaction of 3-alkynyl-4-methoxycoumarins with molecular iodine in chlorinated solvents allows access to 3-iodofurochromones in good to excellent yields as the result of a iodocyclization-demethylation process. Competitive diiodination of the coumarin acetylene moiety could be eliminated by simply performing the reactions in refluxing 1,2-dichloroethane, owing to the thermal instability of the resulting (E)-1,2-diiodoethenylcoumarins.
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