Abstract
Comprehensive SummaryElectrochemical nickel‐catalyzed syntheses of triphenylenes by a) reductive trimerization of ortho‐dibromobenzenes or ortho‐bromoarylsulfurofluoridates, or b) reductive cross‐coupling of ortho‐dibromobenzenes to 2,2’‐diiodobiphenyls, are described. The former provides a practical means for the construction of triphenylene derivatives in up to 87% isolated yield at room temperature. For 1,2‐dihalo‐3‐methylbenzenes and related ortho‐trisubstituted substrates, trimerizations proceed with high substrate‐controlled regioselectivity for the non‐C3h symmetric triphenylene isomer.
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