Synthesis of 1,2-Diaryl- and 1-Aryl-2-alkylimidazoles with Sterically Demanding Substituents
作者:Maik Micksch、Mario Tenne、Thomas Strassner
DOI:10.1002/ejoc.201300688
日期:2013.9
developed a new, high-yielding procedure for the synthesis of 1,2-diaryl-substituted imidazoles with sterically demanding substituents at the respective ortho positions by starting from commercially available anilines and benzoic acids through the corresponding acid chlorides. The metal-free method provides access to a variety of different substituents on the phenyl rings at N-1 and C-2 as well as at
1,2-二芳基咪唑是一类重要的化合物。它们经常用作光物理活性金属配合物的配体,并且还显示出生理活性。我们开发了一种新的、高产率的方法,用于合成 1,2-二芳基取代的咪唑,通过从市售的苯胺和苯甲酸开始,通过相应的酰氯,在相应的邻位具有空间要求的取代基。无金属方法可以获取苯环上 N-1 和 C-2 以及咪唑骨架 4,5-位的各种不同取代基。我们的新方法也适用于 1-芳基-2-烷基咪唑的制备。