A number of 3-alkoxy-5-substituted-2,4-alkadienoic acids (4a–f) have been synthesized from the reaction of ethyl (E)-3-alkoxy-2-butenoate with different ketones in the presence of KOH in DMSO. Similarly, several (2Z,4E)-5-[4-(benzylthio)phenyl]-3-alkoxyhexa-2,4-dienoic acids were prepared via condensation of ethyl (E)-3-alkoxy-2-butenoate with 4-(benzylthio)acetophenone in the presence of KOH in DMSO. The structures of all synthesized compounds were confirmed by IR, 1H NMR, 13C NMR, and MS spectra and by elemental analysis.
Research on Chemical Intermediates – Springer Journals
Published: Jun 25, 2013
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