Reactions of Zinc Enolates of Substituted 1-Aryl-2,2-dibromobutanones with Alkyl Esters of 3-Oxo-3H-benzo[f]chromene-2-carboxylic Acid |
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| Authors: | Shchepin V V Russkikh N Yu Kalyuzhnyi M M Shchepin R V Vakhrin M I |
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| Institution: | (1) Perm State University, Perm, Russia |
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| Abstract: | Zinc enolates derived from substituted 1-aryl-2,2-dibromobutanones react with alkyl 3-oxo-3H-benzof]chromene-2-carboxylates to form alkyl 1-aroyl-1-ethyl-2-oxo-1,9c-dihydro-3-oxacyclopropac]phenanthrene-1a-carboxylate as a single geometric isomer. |
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