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Stereocontrolled Synthesis of (E)-β,γ-Unsaturated Esters via Palladium-Catalyzed Cross-Coupling of (E)-Alkenylboronic Acids with α -Bromoacetic Esters

✍ Scribed by Yazhen DUAN; Jianshe ZHANG; Jun YANG; Minzhi DENG

Publisher: John Wiley and Sons
Year: 2009
Tongue: English
Weight: 68 KB
Volume: 27
Category: Article
ISSN: 0256-7660
DOI: 10.1002/cjoc.200990014

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✦ Synopsis

The cross-coupling reaction of trans-alkenylboronic acids with α-bromoacetic esters was firstly studied. It was found that using Pd(OAc) 2 as catalyst, a bulky electron-rich phospine, (2-dicyclohexylphospino-biphenyl) as ligand, the reaction can be readily accomplished to give specific (E)-β,γ-unsaturated esters in high yields.

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