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- W4236064170 abstract "The (E) and (Z) isomers of α bromo 2 hydroxy-4-nitrochalcone both exhibited the unusual ability to undergo nucleophilic addition to the α position of the double bond. They differed markedly, however, in their preferred mode, the former favoured α addition, the latter β addition. It is proposed that these isomers are intermediates in the Emilewicz-von Kostanecki cyclization of 2 hydroxy-4-nitrochalcone dibromide to a mixture of aurone and flavone." @default.
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- W4236064170 date "1977-01-01" @default.
- W4236064170 modified "2023-09-27" @default.
- W4236064170 title "Chalcone dihalides—IX" @default.
- W4236064170 doi "https://doi.org/10.1016/0040-4020(77)80152-x" @default.
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