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The symmetrical bisheterocycles built around varying lengths aliphatic linkers have been synthesized from the easy cyclization reactions of bischalcones with phenyl hydrazine by refluxing in dry EtOH and glacial acetic acid medium. The intermediates in turn were prepared in the good yields from O-alkylation of hydroxy substituted chalcone with suitable 1,ω-dibromoalkanes in the presence of anhydrous...
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