Fig. 1. Pd-catalyzed synthesis of dibenzothiophenes via the cleavage of C–H and C–S bonds^a. ^aReaction conditions: 1 (0.30 mmol), Pd(OAc)₂ (0.045 mmol), and 3 (0.135 mmol) in toluene (1.0 mL) at 130 °C for 18 h. Isolated yields are shown. ^bPd(OAc)₂ (0.090 mmol), and 3 (0.27 mmol) were used.