Reaction of some substituted 2-allylphen
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K.V. Subba Raju; G. Srimannarayana; N.V. Subba Rao
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Article
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1977
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Elsevier Science
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French
β 234 KB
Several methods are available for the synthesis of coumarin ring systeml. We nQy report a new method for the synthesis of coumarins by oxidative cyclisation of some substituted 2allylphenols by 2,3=dichloro-5,6-dicyano-1,4-bensoguinone 0). 7-Allyloxy-3-methylflavone2 on Claisen rearrangement b vacu