Visible-light induced synthesis of 8H-indolo[3,2,1-de]phenanthridin-8-ones and related heterocycles using benzothiadiazole as photocatalyst
作者:Li Qiao、Ke Zhang、Hanjie Li、Ping Lu、Yanguang Wang
DOI:10.1016/j.tetlet.2022.153648
日期:2022.2
(2-bromophenyl)(9H-carbazol-9-yl)methanones using benzothiadiazole-containing photocatalyst is reported. This transition metal free method can be utilized for the synthesis of 7H-thieno[2′,3′:4,5]pyrido[3,2,1-jk]carbazol-7-one, 14H-isoquinolino[4,3,2-kl]phenoxazin-14-one, 14H-isoquinolino[4,3,2-kl]phenothiazin-14-one, and 10,11,12,13-tetrahydro-8H-indolo[3,2,1-de]phenanthridin-8-one. Moreover, some products
通过可见光诱导自由基环化 (2-溴苯基)(9 H -carbazol-9-yl )获得多环 8 H -indolo[3,2,1- de ]phenanthridin-8-ones 的简单而温和的方法) 使用含苯并噻二唑的光催化剂的甲酮有报道。这种不含过渡金属的方法可用于合成 7 H -thieno[2',3':4,5]pyrido[3,2,1- jk ]carbazol-7-one, 14 H - isoquinolino[4, 3,2- kl ]phenoxazin-14-one、14 H -isoquinolino[ 4,3,2- kl ]phenothiazin-14-one 和 10,11,12,13-tetrahydro-8 H - indolo[3,2 ,1-德]phenanthridin-8-one。此外,发现一些产品会发出强烈的蓝色或绿色荧光。