REACTION OF ETHYL ACETOACETATE AND 2 '-HYDROXYCHALCONES: EFFICIENT ROUTE TO 9-ARYL-6H-BENZO[C]CHROMEN-6-ONES
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Publication Details
Author list: Masesane IB, Mazimba O
Publisher: Chemical Society of Ethiopia
Place: ADDIS ABABA
Publication year: 2014
Journal acronym: B CHEM SOC ETHIOPIA
Volume number: 28
Issue number: 2
Start page: 289
End page: 294
Number of pages: 6
ISSN: 1011-3924
Languages: English-Great Britain (EN-GB)
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Abstract
The reaction of ethyl acetoacetate and 2'-hydroxychalcones under atmospheric air to furnish a series of functionalized 6H-benzo[c]chromen-6-ones in moderate yields is reported. The reaction proceeds through trans-esterification, intra-molecular Michael addition, Robinson annulation and oxidative aromatization.
Keywords
2 '-Hydroxychalcones, 6H-Benzo[c]chromen-6-ones, Ethyl acetoacetate, Michael addition, Oxidative aromatization, Robinson annulation, Trans-esterification
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