Microwave-Assisted Nickel-Catalyzed Synthesis of Benzimidazoles: Ammonia as a Cheap and Nontoxic Nitrogen Source
作者:Fang Ke、Peng Zhang、Yiwen Xu、Xiaoyan Lin、Jin Lin、Chen Lin、Jianhua Xu
DOI:10.1055/s-0037-1610843
日期:2018.12
efficient and convenient Ni-catalyzed C–N bond formation for the synthesis of various benzimidazoles from various 2-haloanilines, aldehydes, and ammonia in a concise manner is reported. This protocol uses commercially available, nonhazardous, clean ammonia as a reaction partner instead of other nitrogen sources. Benzimidazoles, as the sole products, were obtained in high to excellent yields (up to 95%)
报道了一种高效且方便的 Ni 催化 C-N 键形成,用于以简洁的方式从各种 2-卤代苯胺、醛和氨合成各种苯并咪唑。该协议使用市售的、无害的、清洁的氨作为反应伙伴,而不是其他氮源。苯并咪唑作为唯一的产品,以高到极好的收率(高达 95%)获得。