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ChemInform Abstract: Synthesis of 1,4-Diarylbuta-1,3-dienes Through Palladium-Catalyzed Decarboxylative Coupling of Unsaturated Carboxylic Acids.

✍ Scribed by Mana Yamashita; Koji Hirano; Tetsuya Satoh; Masahiro Miura

Publisher
John Wiley and Sons
Year
2011
Weight
31 KB
Volume
42
Category
Article
ISSN
0931-7597

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Synthesis of 1,4-Diarylbuta-1,3-dienes t
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## Abstract It has been found that readily available hydroxylated cinnamic acids such as ferulic acid undergo palladium‐catalyzed decarboxylative coupling with aryl iodides and internal alkynes in a 1:1:1 manner to produce 1,4‐diarylbuta‐1,3‐dienes. The butadiene synthesis has also been achieved th

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## Abstract A variety of unsymmetrical alkynes (III) is readily prepared by a highly efficient Pd(O‐Ac)~2~‐catalyzed decarboxylative cross‐coupling of boronic acids (I) with acids (II) in the presence of Ag~2~O as oxidant.