Scheme 3. Scope of (hetero)aryl-substituted sulfoxonium ylides. a Reaction conditions: 1a (0.1 mmol), 2a–2z (2.0 equiv.), [RhCp*Cl2]2 (6 mol%), HFIP (1.0 mL), 100 °C, 18 h, Ar atmosphere. b Isolated yield. c [Ru(p-cymene)Cl2]2 (6 mol%) as a catalyst. d With achiral coupling partners, the products are obtained as a racemic mixture because reaction at the B(4) and B(5) positions occurs with equal probability, and no attempts were made to separate any of the B(4)/B(5) isomers of the entire product series.
