Pyrene-tethered bismoviologens for visible light-induced C(sp^(3))-P and C(sp^(2))-P bonds formation  

作　　者：Wenqiang Ma Sikun Zhang Liang Xu Bingjie Zhang Guoping Li Bin Rao Mingming Zhang Gang He 

机构地区：[1]Key Laboratory of Thermo-Fluid Science and Engineering of Ministry of Education,School of Energy and Power Engineering,Frontier Institute of Science and Technology,Xi’an Jiaotong University,Xi’an 710054,China [2]School of Chemistry,Xi’an Key Laboratory of Sustainable Energy Materials Chemistry,Xi’an Jiaotong University,Xi’an 710049,China [3]School of Materials Science and Engineering,Xi’an Jiaotong University,Xi’an 710049,China

出　　处：《Chinese Chemical Letters》2023年第6期329-335,共7页中国化学快报（英文版）

基　　金：supported by the Natural Science Foundation of China(Nos.22175138,21875180);the Key Research and Development Program of Shaanxi(No.2021GXLH-Z023);the Independent Innovation Capability Improvement Project of Xi’an Jiaotong University(No.PY3A066)。

摘　　要：Developing efficient photosensitizers for C-P bond construction is highly important and remains a challenge due to the urgently needed for the synthesis of modified nucleosides,nucleotides,and other phosphine-containing ligands.Herein,two pyrene-tethered bismoviologen derivatives(Py-BiV^(2+))were designed and synthesized for visible-light-induced C-P bonds formation.The photochemical and electrochemical properties of Py-BiV^(2+)were studied systemically,certifying fine-tunable opto-electronic properties through the number of pyrene groups(4,n=1;6,n=2).The prepared Py-BiV^(2+)showed strong light absorption,while retaining good redox features and chromic response features that were inherent to viologens.4 exhibited accelerated photoinduced electron transfer in the presence of the electron donor(pyrene)and the generated 4(radical cation)showed higher stability.Accordingly,Py-BiV^(2+)directly served as photosensitizers for the first time in the visible-light-induced C(sp^(3))-P and C(sp^(2))-P bonds formation.As expected,these novel viologen derivatives exhibited good catalytic performance and good substrate expansibility under ambient conditions.

关 键 词：VIOLOGEN ELECTROCHROMISM C-P bonds Photocatalysis Bismuth 

分 类 号：O621.25[理学—有机化学]