Reactions of 1-Aryl-2,2-dibromobutan-1-ones with Zinc and Alkyl 6-Bromo-2-oxo-2-H-chromen-3-carboxylate |
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| Authors: | Zhchepin V V Kalyuzhnyi M M Zhchepin R V Vakhrin M I |
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| Institution: | (1) Perm State University, 614600 Perm, Russia |
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| Abstract: | Zinc enolates formed from 1-aryl-2,2-dibromobutan-1-ones and zinc react with alkyl 6-bromo-2-oxo-2-H-chromen-3-carboxylates affording alkyl 1-aroyl-6-bromo-2-oxo-1-ethyl-1,7b-dihydrocyclopropac]-chromen-1a(2H)-carboxylates as a single isomer. |
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