Combined Directed <b><i>ortho</i></b> Metalation/Suzuki−Miyaura Cross-Coupling Strategies. Regiospecific Synthesis of Chlorodihydroxybiphenyls and Polychlorinated Biphenyls
作者:S. Nerdinger、C. Kendall、X. Cai、R. Marchart、P. Riebel、M. R. Johnson、C.-F. Yin、N. Hénaff,、L. D. Eltis、V. Snieckus
DOI:10.1021/jo062543i
日期:2007.8.1
The Directed ortho Metalation (DoM)/Suzuki-Miyaura cross-coupling strategy is applied for the regiospecific construction of all isomeric monochloro and selected dichloro and trichloro 2,3-dihydroxybiphenyls (DHBs). The combined methodology highlights iterative DoM processes, hindered Suzuki-Miyaura couplings, and advantages in diversity in approaches from commercial starting materials leading to provision of chloro-DHBs as single isomers in high purity and on a gram scale. The syntheis of several PCBs are also reported.