Synthesis of 6-aryltetrahydropyran-2,4-diones containing a hexamethylene substituent in positions 3 or 5 of heterocycle |
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| Authors: | N F Kirillov V S Melekhin D V Bogatyrev |
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| Institution: | (1) Perm State University, Perm, 614990, Russia |
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| Abstract: | Methyl 3-(1-bromocycloheptyl)-2,2-dimethyl-3-oxopropanoate and methyl 1-(2-bromo-2-methylpropanoyl)cycloheptanecarboxylates react with zinc and arylcarbaldehydes yielding 5-aryl-2,2-dimethyl-4-oxaspiro5.6]dodecan-1.3-diones and 3-aryl-4,4-dimethyl-2-oxaspiro5.6]dodecan-1.5-diones respectively. |
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