Site-Selective Synthesis of Arylated Indenones by Suzuki-Miyaura Cross-Coupling Reactions of 2,3,5-Tribromoinden-1-one
作者:Dhafer Saber Zinad、Munawar Hussain、Alexander Villinger、Peter Langer
DOI:10.1002/ejoc.201100313
日期:2011.8
The first transition-metal-catalyzed cross-coupling reactions of 2,3,5-tribromo-1H-inden-1-one are reported. The Suzuki–Miyaura reaction of 2,3,5-tribromo-1H-inden-1-one with three equivalents of arylboronic acid gave 2,3,5-triaryl-1H-inden-1-ones. The reaction with one and two equivalents of arylboronic acid gave 2,5-dibromo-3-aryl-1H-inden-1-ones and 5-bromo-2,3-diaryl-1H-inden-1-ones, respectively
报道了第一个过渡金属催化的 2,3,5-tribromo-1H-inden-1-one 交叉偶联反应。2,3,5-tribromo-1H-inden-1-one 与三当量的芳基硼酸的 Suzuki-Miyaura 反应得到 2,3,5-triaryl-1H-inden-1-ones。与一当量和两当量的芳基硼酸反应分别得到 2,5-dibromo-3-aryl-1H-inden-1-ones 和 5-bromo-2,3-diaryl-1H-inden-1-ones,其中非常好的位点选择性。2,3,5-tribromo-1H-inden-1-one 与一当量的两种不同芳基硼酸的一锅反应得到含有两种不同芳基硼酸的 5-bromo-2,3-diaryl-1H-inden-1-ones末端芳基。其他一锅反应允许合成含有不同芳基的 2,3,5-triaryl-1H-inden-1-ones。