Synthesis of 3,6-diaryl-1<i>H</i>-pyrazolo[3,4-<i>b</i>]pyridines <i>via</i> one-pot sequential Suzuki–Miyaura coupling
作者:Urvashi Urvashi、Vibha Tandon、Parthasarathi Das、S. Kukreti
DOI:10.1039/c8ra07104g
日期:——
diarylpyrazolo[3,4-b]pyridine derivatives by a combination of chemoselective Suzuki–Miyaura cross-coupling reactions was developed. The sequential arylation strategy can be performed in a one-pot manner without much loss of efficiency when compared to the corresponding stepwise synthesis. These conditions are applicable to the coupling of a wide variety of aryl and heteroaryl-boronic acids with pyrazolo[3
开发了一种通过化学选择性 Suzuki-Miyaura 交叉偶联反应合成二芳基吡唑并[3,4- b ]吡啶衍生物的实用方法。与相应的逐步合成相比,顺序芳基化策略可以一锅法进行,而不会大大降低效率。这些条件适用于多种芳基和杂芳基硼酸与吡唑并[3,4- b ]吡啶的偶联,C3对C6位具有高选择性,从而能够快速构建多种药物重要的二芳基吡唑并[3,4- b ]吡啶。