A general synthesis of stable ortho-boropinacolato aryl and heteroaryl sulfonamides by directed ortho-metalation (D o M) and either MeOBPin or i-PrOBpin electrophile quench, 3→ 4, is described. A one-pot metalation–Suzuki cross-coupling procedure for the synthesis of
[Pettit, George R.; Grealish, Matthew P.; Jung, M. Katherine; Hamel, Ernest; Pettit, Robin K.; Chapuis, J.-Charles; Schmidt, Jean M. Journal of Medicinal Chemistry, 2002 , vol. 45, # 12 p. 2534 - 2542]