Site-Selective Arylation of Alizarin and Purpurin Based on Suzuki-Miyaura Cross-Coupling Reactions
作者:Ahmed Mahal、Alexander Villinger、Peter Langer
DOI:10.1002/ejoc.201001497
日期:2011.4
A variety of arylated anthraquinones were prepared by site-selective Suzuki–Miyauracross-couplingreactions of the bis- and tris(triflates) of alizarin and purpurin, respectively. The site-selectivity is controlled by the electronic influence of the carbonyl group and by steric parameters.