S. Nerdinger, R. Marchhart, P. Riebel, C. Kendall, M. R. Johnson, C.-F. Yin, V. Snieckus and L. D. Eltis
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.