化学
亚胺
催化作用
光催化
组合化学
试剂
钴
分子
光化学
脱羧
可见光谱
光催化
基质(水族馆)
有机化学
物理
海洋学
光电子学
地质学
作者
Xianwei Zhang,Tianzhao Wang,Shisheng Cui,Lei Li,Zhibing Zheng,Chunlai Mi,Bin Lin,Xuhong Ren,Xinhua He
标识
DOI:10.1021/acs.joc.1c02987
摘要
Cobalt/photoredox cooperative catalysis is a well-explored technology for visible-light photoredox catalysis. Recently, the photosensitivity of Co(II) complexes in homogeneous catalysis has aroused the interest of scientists. In this study, photosensitive Co(II) complex intermediates were designed to develop new synthetic methods. These intermediates, consisting of Co(II) and two substrate molecules, bind to O2 and absorb visible light over a wide spectral range, triggering in situ oxidative decarboxylation to produce molecules containing the quinazolin-4(3H)-imine scaffold. These reactions employed glyoxylic acid and ketoacids as new building blocks, and good to excellent yields of the corresponding products were obtained under mild reaction conditions using green and inexpensive reagents and solvents. These results are of importance since the design of Co-based photosensitive intermediates will aid in establishing novel methods for harnessing visible light and hence lead to innovation in organic syntheses.
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