Use of (E,E)-Dienoic Acids as Switchable (E,E)- and (Z,E)-Dienyl Anion Surrogates via Ligand-Controlled Palladium Catalysis.
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DOI: 10.1021/jacs.2c10004
Abstract: Carboxylic acids are not readily applied as carbon-based nucleophiles due to their intrinsic acidic group. Here, we demonstrate that free (E,E)-2,4-dienoic acids form electron-neutral and highest occupied molecular orbital-raised η2-complexes with Pd(0) and undergo Friedel-Crafts-type… read more here.
Keywords: use dienoic; via ligand; dienoic acids; ligand controlled ... See more keywords
Decarboxylative and dehydrative coupling of dienoic acids and pentadienyl alcohols to form 1,3,6,8-tetraenes
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DOI: 10.3762/bjoc.13.41
Abstract: Dienoic acids and pentadienyl alcohols are coupled in a decarboxylative and dehydrative manner at ambient temperature using Pd(0) catalysis to generate 1,3,6,8-tetraenes. Contrary to related decarboxylative coupling reactions, an anion-stabilizing group is not required adjacent… read more here.
Keywords: pentadienyl alcohols; acids pentadienyl; dienoic acids; dehydrative coupling ... See more keywords