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Twenty-three 7-alkoxycoumarins and related analogs were synthesized from 7-hydroxycoumarin by treatment with various alkyl/aryl/acyl halides and potassium carbonate in DMF. Their antifeedant and termiticidal activities against Coptotermes formosanus Shiraki were examined. Among the 23 compounds and control, 7-cyclohexyloxycoumarin (2k), exhibited the highest termiticidal activity in no-choice test,...
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