Directed ortho-metalation and Suzuki–Miyaura cross-coupling connections: regiospecific synthesis of all isomeric chlorodihydroxybiphenyls for microbial degradation studies of PCBs
Abstract
Monochloro DHBs 1a–d and 2a–c have been regioselectively synthesised in good overall yields by a combination of directed ortho metalation and Suzuki–Miyaura cross-coupling.