Synthesis of 2,4-Diarylimidazoles through Suzuki Cross-coupling Reactions of Imidazole Halides with Arylboronic Acids
作者:Thomas Erker、Ingo Langhammer
DOI:10.3987/com-05-10445
日期:——
The Suzuki coupling, a Pd-catalyzed cross-coupling reaction of a boronic acid with an aryl halide, was used to prepare several 2,4-diarylimidazoles. lodinated and brominated imidazoles (3) and (9) proved to be suitable aryl halides for Suzuki coupling. These imidazole halides readily reacted with phenyl-, naphthyl- and biphenylboronic acids under Suzuki conditions to give arylated imidazoles.
Suzuki 偶联是一种 Pd 催化的硼酸与芳基卤化物的交叉偶联反应,用于制备几种 2,4-二芳基咪唑。碘代和溴代咪唑 (3) 和 (9) 被证明是适合 Suzuki 偶联的芳基卤化物。这些咪唑卤化物在 Suzuki 条件下很容易与苯基硼酸、萘基硼酸和联苯硼酸反应生成芳基化咪唑。