Palladium-Catalyzed Reductiveortho-Arylation: Evidence for the Decomposition of 1,2-Dimethoxyethane and Subsequent Arylpalladium(II) Reduction
摘要:
A palladium-catalyzed crossed biaryl coupling/reduction sequence enables the formation of meta-substituted biaryls via solvent-mediated arylpalladium(II) reduction. Isotope labeling studies determined that the decomposition of 1,2-dimethoxyethane (DME) is indeed involved in the reductive process.
Aromatic <i>ortho</i>-Benzylation Reveals an Unexpected Reductant
作者:Andrew Martins、Mark Lautens
DOI:10.1021/ol802185x
日期:2008.11.6
The discovery of a novel arylpalladium(II) reduction enables the synthesis of diarylmethanes via reductivebenzylation. Benzyl chlorides were found to be the major source of hydride, acting as an alkylating agent and an aprotic surrogate for benzyl alcohol. This represents the first example of an arylpalladium(II) reduction mediated by a benzylhalide.