文献类型：期刊文献

英文题名：Visible light mediated cyclization of tertiary anilines with maleimides using a supported iridium complex catalyst

作者：Peng, Feng[1];Zhi, Peng[1];Ji, Heng[1,2];Zhao, Huan[1];Kong, Fen-Ying[2];Liang, Xue-Zheng[1];Shen, Yong-Miao[1]

机构：[1]Shaoxing Univ, Sch Chem & Chem Engn, Key Lab Clean Dyeing & Finishing Technol Zhejiang, Shaoxing 312000, Peoples R China;[2]Yancheng Inst Technol, Sch Chem & Chem Engn, Yancheng 224051, Jiangsu, Peoples R China

年份：2017

卷号：7

期号：32

起止页码：19948

外文期刊名：RSC ADVANCES

收录：SCI-EXPANDED(收录号：WOS:000399242100059)、、EI(收录号：20171503555468)、Scopus(收录号：2-s2.0-85017135319)、WOS

基金：This work was supported by the National Natural Science Foundation of China (NSFC 21202101), Zhejiang Provincial Natural Science Foundation of China (LY16B020006) and China Postdoctoral Science Foundation (2015M581919).

语种：英文

外文关键词：Aniline - Catalyst activity - Cyclization - Iridium compounds - Light - Metal complexes - Transition metals

外文摘要：The novel supported iridium complex catalyst was synthesized through the immobilization of the iridium complex onto vinylpyridine and divinylbenzene copolymer. In order to avoid the iridium releasing, vinylpyridine was used to provide the chelating sites. The catalytic activity was investigated through the visible light mediated cyclization of tertiary anilines and maleimides. The catalyst showed high activity and stability with the average isolated yield over 50%. The heterogeneous process greatly simplified catalyst recovery and product purification, which was quite superior to homogeneous iridium complexes. Compared with transition metal complexes such as Ru(bpy)(3)Cl-2 or Ir(ppy)(2)(dtbbpy) PF6, advantages of this supported iridium complex catalyst as the photocatalyst include high hydrophobic BET surface and catalytic activity, low cost, ease of recovering and being able to be used for at least four times without significant decay of catalytic activity.