Brominated derivatives of 4-hydroxy- and 4-methoxy-6-methyl-2H-pyran-2-ones |
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Authors: | P. De March,M. Moreno-Ma as,R. Pi,I. Ripoll,F. S nchez-Ferrando |
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Affiliation: | P. De March,M. Moreno-Mañas,R. Pi,I. Ripoll,F. Sánchez-Ferrando |
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Abstract: | Twenty-five different brominated derivatives of 4-hydroxy-6-methyl-2-pyrone (triacetic acid lactone) and 3-acetyl-4-hydroxy-6-methyl-2-pyrone (dehydroacetic acid) have been prepared. Fifteen derivatives have not been previously described and the preparations of a few known products have been improved. Bromination at C-3, C-5, methyl group at C-6 and deacetylations at C-3 have been the types of reactions used. |
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