Synthesis of 2-Aryl-3,4,5,6-tetrachloropyridines and 2,6-Diaryl-3,4,5-trichloropyridines by Site-Selective Suzuki-Miyaura Reactions of Pentachloropyridine
作者:Peter Langer、Peter Ehlers、Sebastian Reimann、Silke Erfle、Alexander Villinger
DOI:10.1055/s-0029-1219951
日期:2010.6
The first Suzuki-Miyaura reactions of pentachloropyridine are reported. The reaction with two equivalents of arylboronic acids gave 2,6-diaryl-3,4,5-trichloropyridines, while the reaction with one equivalent of arylboronic acid afforded 2-aryl-3,4,5,6-tetrachloropyridines. The one-pot reaction of pentachloropyridine with two different arylboronic acids resulted in the formation of 2,6-diaryl-3,4,5-trichloropyridines
报道了五氯吡啶的首次 Suzuki-Miyaura 反应。与两当量的芳基硼酸反应得到2,6-二芳基-3,4,5-三氯吡啶,而与一当量的芳基硼酸反应得到2-芳基-3,4,5,6-四氯吡啶。五氯吡啶与两种不同的芳基硼酸的一锅反应导致形成含有两个不同芳基的 2,6-二芳基-3,4,5-三氯吡啶。所有反应都以非常好的位点选择性进行。