4.8 Article

η2-dba complexes of Pd(0):: The substituent effect in Suzuki-Miyaura coupling

Journal

ORGANIC LETTERS
Volume 6, Issue 24, Pages 4435-4438

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/ol048413i

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The influence of aryl substituents in dibenzylidene acetone (dba) ligands, for Pd(0) complexes, has been evaluated for Suzuki-Miyaura cross-coupling reactions. Electron-withdrawing substituents such as NO2 or CF3 deactivate the catalyst species whereas strongly donating substituents such as Me increase catalytic activity over that of unsubstituted dba ligands.

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