作者:Normand Voyer、Pierre-Luc Boudreault、Sébastien Cardinal
DOI:10.1055/s-0030-1258554
日期:2010.10
We prepared four 2-(aminomethyl)arylboronic acids and studied their reactivity in the Suzuki-Miyaura coupling reaction with different aryl halides. We observed significant increases in yields and shorter reaction times when the amine adjacent to the boronic acid was protected by a tert-butyloxycarbonyl (t-Boc) group. We then investigated the origin of the greater reactivity of N-t-Boc-protected substrates with regard to the potential role of an N-B bond.
我们制备了四种 2-(氨基甲基)芳基硼酸,并研究了它们在与不同芳基卤化物的 Suzuki-Miyaura 偶联反应中的反应性。我们观察到,当与硼酸相邻的胺受到叔丁氧羰基 (t-Boc) 基团保护时,产率显着增加,反应时间缩短。然后,我们研究了 N-t-Boc 保护的底物在 N-B 键的潜在作用方面具有更高反应性的根源。