Journal
ACS CATALYSIS
Volume -, Issue -, Pages 248-255Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acscatal.2c05189
Keywords
?-haloketones; heterogeneous photocatalysis; oxidative halogenation; oxygen radicals; halogen radicals
Categories
Funding
- NSFC [21972100]
- Project of Innovation and Entrepreneurship of Jiangsu Province [JSSCRC202010539]
- Suzhou Foreign Academician Workstation [SWY2022001]
- EPSRC [EP/T013079/1]
- Key R&D plan of Beijing Municipal Science and Technology Commission [Z181100005118014]
- Canada Research Chairs program
- Soochow Municipal laboratory for low carbon technologies and industries
Ask authors/readers for more resources
In this study, a copper-modified graphitic carbon nitride was used to synthesize alpha-haloketones from aromatic olefins under mild reaction conditions. This novel photosynthetic strategy offers environmental sustainability, high selectivity, and stability.
The alpha-haloketones are important precursors for synthetic chemistry and pharmaceutical applications; however, their production relies heavily on traditional synthetic methods via halogenation of ketones that are toxic and environmentally risky. Here, we report a heterogeneous photosynthetic strategy of alpha-haloketone production from aromatic olefins using copper-modified graphitic carbon nitride (Cu-C3N4) under mild reaction conditions. By employing NiX2 (X = Cl, Br) as the halogen source, a series of alpha-haloketones can be synthesized using atmospheric air as the oxidant under visible-light irradiation. In comparison with pristine carbon nitride, the addition of Cu as a cocatalyst provides a moderate generation rate of halogen radicals and selective reduction of molecular oxygen into center dot OOH radicals, thus leading to a high selectivity to alpha-haloketones. The Cu- C3N4 also exhibits high stability and versatility, rendering it a promising candidate for solar-driven synthetic applications.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available