Tandem C(
<i>sp</i>
<sup>3</sup>
)−H Arylation/Oxidation and Arylation/Allylic Substitution of Isoindolinones
作者:Jacqueline Jiménez、Byeong‐Seon Kim、Patrick J. Walsh
DOI:10.1002/adsc.201600654
日期:2016.9
derivatives, which exhibit anti‐tumor activity, can be accessed via a tandem reaction. Thus, when the arylation product is exposed to air under basic conditions, in situ oxidation takes place to install the 3‐hydroxy group. Furthermore, a tandem arylation/allylic substitution reaction is advanced in which both the arylation and allylic substitution are catalyzed by the same palladium catalyst. Finally
异吲哚酮包含一类重要的药用活性化合物。在此,我们报告了使用乙酸钯 (II)/NIXANTPHOS 基催化剂系统对异吲哚啉酮与芳基溴化物进行直接官能化(22 个示例)。此外,还可以通过串联反应获得具有抗肿瘤活性的 3-芳基-3-羟基异二氢吲哚酮衍生物。因此,当芳基化产物在碱性条件下暴露于空气时,会发生原位氧化以安装3-羟基。此外,进行串联芳基化/烯丙基取代反应,其中芳基化和烯丙基取代均由相同的钯催化剂催化。最后,提出了串联芳基化/烷基化程序。这些串联反应使得能够从常见的起始材料合成各种结构不同的异吲哚酮衍生物。