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. 2017 Feb 1;8:14226. doi: 10.1038/ncomms14226

Figure 3. Substrate scope of pyrazole 2a with other aromatic arenes 4.

Figure 3

Reaction conditions: 4 (1.2 mmol), 2a (0.3 mmol), Acr+-Mes ClO4 (7 mol%) and Co(dmgH)2Cl2 (8 mol%) in CH3CN (5.0 ml) under N2 atmosphere, irradiated by 3 W blue LEDs at 25 °C for 24 h. The ratio of the isomer was determined by nuclear magnetic resonance. Isolated yields are shown.