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Updated: Mar 27, 2026

Palladium N-Heterocyclic Carbene Complexes: Synthesis from Benzimidazolium Salts and Catalytic Activity in Carbon-carbon Bond-forming Reactions
Published on: July 30, 2017
Structural Distortion and Arene π-Coordination Dual-Assisted Palladium-Catalyzed Annulation Reaction of Aromatic
Na Huang1, Peng-Yu Wang1, Cui Liu1
1College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610066, P. R. China.
Abstract:
A palladium-catalyzed annulation reaction of aromatic carboxylic acids with 2,2'-diiodobiphenyls has been developed. Both structural distortion and arene π-coordination facilitate the oxidative addition of 2,2'-diiodobiphenyls to C,O-palladacycles, thereby enabling the annulation reaction. This method provides efficient access to various polycyclic aromatic compounds. Studies reveal that the obtained product, 2,3,6,7,11,12,15,16-octakis(hexyloxy)diphenanthro[9,10-b:9',10'-d]thiophene, exhibits good liquid-crystalline properties.
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