A novel oxidative
cross-coupling of benzo[b]thiophene
1,1-dioxides with arylboronic acids was reported. The efficient reaction
occurred at the C2-position via C–H activation, followed by
Pd(II)-catalyzed arylation. Furthermore, a series of C2-arylated products
with significant photoluminescence properties have been synthesized
and characterized, which illustrates the potential applications of
our method in the aggregation-induced emission field.