Abstract

A series of NHC-derivative ligands was synthesized from bisbenzimidazole salts as the precursor of N-heterocyclic carbene with chalcogens, carbon disulfide, and phenyl isothiocyanate reagents. These new ligands were used in the Suzuki–Miyaura cross-coupling reaction in the presence of palladium(II) acetate. Particularly, it was observed a remarkable ligand activity with tellurourea (5).

中文翻译：

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新的NHC衍生物作为配体在Suzuki-Miyaura反应中的作用

摘要

由双苯并咪唑盐（N-杂环卡宾的前体）与硫属元素化合物，二硫化碳和异硫氰酸苯酯试剂合成了一系列NHC衍生物配体。这些新的配体用于存在乙酸钯（II）的Suzuki-Miyaura交叉偶联反应中。特别地，观察到碲脲具有显着的配体活性（5）。