α‐Arylation, α‐Arylative Esterification, or Acylation: A Stoichiometry‐Dependent Trichotomy in the Pd‐Catalyzed Cross‐Coupling between Aldehydes and Aryl Bromides
作者:Pradeep Nareddy、Clément Mazet
DOI:10.1002/asia.201300724
日期:2013.11
Three′s company: The selective α‐arylation and α‐arylativeesterification of linear and branched aldehydes is reported for a variety of bromoarenes. The acylation of arylbromides can be achieved with linear aldehydes (see scheme). All these transformations were performed with a single [(N‐heterocyclic carbene)Pd] catalyst through adjustment of the stoichiometry of the reagents and the appropriate
Palladium-Catalyzed α-Arylation of Aldehydes with Bromo- and Chloroarenes Catalyzed by [{Pd(allyl)Cl}2] and dppf or Q-phos
作者:Giang D. Vo、John F. Hartwig
DOI:10.1002/anie.200705357
日期:2008.2.28
An Improved Protocol for the Pd-Catalyzed α-Arylation of Aldehydes with Aryl Halides
作者:Rubén Martín、Stephen L. Buchwald
DOI:10.1021/ol8017775
日期:2008.10.16
An improved protocol for the Pd-catalyzed alpha-arylation of aldehydes with arylhalides has been developed. The new catalytic system allows for the coupling of an array of substrates including challenging electron-rich aryl bromides and less reactive aryl chlorides. The utility of this method has been demonstrated in a new total synthesis of (+/-)-sporochnol.