Reaction of vinyl ethers with furan and with 2-methylfuran
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The reaction of vinyl ethers with furan and with 2-methylfuran was studied under conditions under which vinyl ethers undergo diene condensation and also in presence of acid catalysts.
Under diene-synthesis conditions vinyl ethers do not react with furan and with 2-methylfuran, but in presence of acid catalysts substitutive addition occurs, leading to the addition of two molecules of 2-methylfuran or furan to the vinyl ether molecule and formation of 2,2′-ethylidenebis(5-methylfuran) and 2,2′-ethylidenedifuran.
KeywordsEther Vinyl Diene Furan Acid Catalyst
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