Synthesis of 1,2-Diarylanthraquinones by Site-Selective Suzuki-Miyaura Reactions of the Bis(triflate) of Alizarin
作者:Peter Langer、Ahmed Mahal、Alexander Villinger
DOI:10.1055/s-0029-1219586
日期:2010.4
1,2-Diarylanthraquinones were prepared by Suzuki-Miyaura reactions of the bis(triflate) of 1,2-dihydroxyanthraquinone (alizarin). The reactions proceed with excellent site selectivity. The first attack occurs at the sterically more hindered position 1, due to electronic reasons.
1,2-二芳基蒽醌是通过 1,2-二羟基蒽醌(茜素)的双(三氟甲磺酸酯)的 Suzuki-Miyaura 反应制备的。反应以优异的位点选择性进行。由于电子原因,第一次攻击发生在空间位阻更大的位置 1。