Scheme 6. C–H arylation and alkenylation of oxazoles and thiazoles with Ni(OTf)2/dcype/K3PO4 in t-amylOH. a Unless otherwise noted, the reaction conditions were as follows: 5 (0.40 mmol), 2 (1.5 equiv.), Ni(OTf)2 (10 mol%), dcypt (12 mol%), K3PO4 (3.0 equiv.), t-amylOH (1.6 mL), 110 °C, and 36 h. b Ni(OTf)2 (10 mol%) and dcypt (12 mol%) were used. c Ni(OTf)2 (10 mol%) and dcypt (12 mol%) were used.
