Reaction of methyl 1-bromocyclopentane- and 1-bromocyclohexanecarboxylates with zinc and 2-arylmethylidene-2,3-dihydro-1<Emphasis Type="Italic">H</Emphasis>-inden-1-ones or 2-arylmethylidene-3,4-dihydronaphthalen-1(2<Emphasis Type="Italic">H</Emphasis>)-ones |
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Authors: | N F Kirillov A G Gavrilov M I Vakhrin |
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Institution: | 1.Perm State University,Perm,Russia |
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Abstract: | Methyl 1-bromocyclopentanecarboxylate and methyl 1-bromocyclohexanecarboxylate reacted with zinc and 2-arylmethylidene-2,3-dihydro-1H-inden-1-ones or 2-arylmethylidene-3,4-dihydronaphthalen-1(2H)-ones to give 4′-aryl-4′,5′-dihydro-2′H-spirocyclopentane(cyclohexane)-1,3′-indeno1,2-b]pyran]-2′-ones or 4-aryl-5,6-dihydrospirobenzoh]chromene-3,1′-cyclopentane(cyclohexane)]-2(4H)-ones, respectively. |
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