19396-77-1Relevant articles and documents
Unusual aluminum chloride-assisted conversion of isopropenyl acetate into 3-acetyl- and 3,5-diacetyl-2,6-dimethyl-4H-pyran-4-ones
Novikov,Shestak,Denisenko
experimental part, p. 1600 - 1604 (2011/05/04)
Reflux of isopropenyl acetate with an excess of AlCl3 in 1,2-dichloroethane affords 3,5-diacetyl-2,6-dimethyl-4H-pyran-4-one in 17% yield. The mild acidic cleavage of the latter (2% HCl, 20°C, 16 h) gives 3-acetyl-2,6-dimethyl-4H-pyran-4-one in 87% yield, whereas this reaction under more drastic conditions (17% HCl, reflux, 3 h) gives 2,6-dimethyl-4H-pyran-4-one in 61% yield.
Pyridone, pyrazole and pyrimidine derivatives from 3,5-Diacyl-4-pyrones
Eiden,Teupe
, p. 863 - 872 (2007/10/04)
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