Palladium-catalyzed arylation of 1,4-naphthoquinones with aryl iodides and its synthetic application to the benzo[b]phenanthridine skeleton
作者:Yusuke Akagi、Toshiya Komatsu
DOI:10.1016/j.tetlet.2020.152446
日期:2020.10
We report a Pd-catalyzed arylation of 1,4-naphthoquinones with aryliodides. This reaction shows excellent functional group tolerance and high regioselectivity when using nonsymmetric 1,4-naphthoquinone. Furthermore, the resulting 2-aryl-1,4-naphthoquinone could be successfully converted into benzo[b]phenanthridine-7,12-dione through treatment with aqueous ammonia, followed by oxidative cyclization
我们报告钯与芳基碘化物催化的芳基化的芳基化。当使用非对称的1,4-萘醌时,该反应显示出优异的官能团耐受性和高的区域选择性。此外,通过用氨水处理,然后使用MnO 2进行氧化环化,可以将所得的2-芳基-1,4-萘醌成功地转化为苯并[ b ]菲啶-7,12-二酮。