3-Aryltetronic acids: efficient preparation and use as precursors for vulpinic acids

…, T Le Gall, C Mioskowski

Index: Mallinger, Aurelie; Gall, Thierry Le; Mioskowski, Charles Journal of Organic Chemistry, 2009 , vol. 74, # 3 p. 1124 - 1129

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Citation Number: 30

Abstract

3-Aryltetronic acids were prepared in one step by treatment of a mixture of methyl arylacetates and methyl hydroxyacetates with potassium tert-butoxide, via tandem transesterification/Dieckmann condensation. Several mushroom or lichen pigments, vulpinic acids, were synthesized from 3-(4-methoxyphenyl) tetronic acid in three steps involving the reaction of the corresponding dianion with an α-ketoester and the dehydration of the ...

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