Journal
ACS CATALYSIS
Volume 7, Issue 5, Pages 3097-3101Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acscatal.7b00490
Keywords
[2+2] cycloaddition; metal-free photocatalysis; organic photocatalyst; visible light; conjugated microporous polymer
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Funding
- Max Planck Society
- China Scholarship Council (CSC)
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Photocatalytic [2 + 2] cycloaddition is a useful tool for the synthesis of cyclobutane derivatives, which contributes a large part to natural compound production. Usually, the [2 + 2] cycloadditions are catalyzed by transition-metal complexes. Here, we report the use of a pure organic photocatalyst based on a conjugated microporous polymer network for the [2 + 2] cycloaddition of styrene derivatives under the irradiation of visible light. Both unsymmetrical and homocycloaddition could be obtained with high conversion and selectivity. In addition, natural products, such as di-O-methylendiandrin A and endiandrin A are also synthesized with a high catalytic efficiency.
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