Palladium-catalyzed one-pot two-step synthesis of unsymmetrical biaryl compoundsa.
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Reaction conditions: (a) 1m (1.1 equiv.), XPhos-Pd-G2 (1.0 mol%), XPhos (1.0 mol%), B2pin2 (1.2 equiv.), K3PO4·7H2O (3.0 equiv.), EtOH (0.275 M), RT, 2 h; (b) second aryl chloride (1.0 equiv.),3.0 M aq. K3PO4·7H2O (3.0 equiv.), RT. Isolated yield based on 1m.
XPhos-Pd-G2 (1.5 mol%) and XPhos (1.5 mol%).