Paper
RSC Advances
+
+
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leading the accumulation of base during electrolysis.
4
or K )
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Conclusions
In summary, a facile, efficient and low-cost electrochemical
thio- and selenocyanation strategy has been developed which
enables C–S and C–Se bond formation under catalyst- and
oxidant-free conditions. Various electron-rich arenes exhibited
great efficiencies for this transformation. Importantly, the
reaction can be performed on a gram scale with good reaction
efficiency and the sole necessary reagent is readily available
thio- or selenocyanated salts. These advantages encourage us to
have prospect towards industrialization. Further studies on the
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rich arenes
In an oven-dried undivided four-necked bottle (25 mL) equip-
ped with a stir bar, electron-rich arene (0.5 mmol), NH
mmol) or KSeCN (1.0 mmol) and CH CN (10 mL) were
1
4
SCN (1.5
3
2
combined and added. The bottle was equipped with platinum
2
plate (1.5 ꢁ 1.5 cm ) as both the anode and cathode and was
5
then charged with argon. The reaction mixture was stirred and
electrolyzed at a constant current of 18 mA under room
temperature for 3 h. When the reaction was nished, the solvent
was removed with a rotary evaporator. The pure product was
obtained by column chromatography on a silica gel column
using petroleum ether: ethyl acetate ¼ 10 : 3.
2
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Conflicts of interest
0 N. Vijay, A. Anu and G. G. Tesmol, Eur. J. Org. Chem., 2002,
There are no conicts to declare.
2363–2366.
1 N. Muniraj, J. Dhineshkumar and K. R. Prabhu,
ChemistrySelect, 2016, 1, 1033–1038.
2 M. Yan, Y. Kawamata and P. S. Baran, Chem. Rev., 2017, 117,
Acknowledgements
This work was nancially supported by the National Natural
Science Foundation of China (No. 21502058) and the Funda-
mental Research Funds for the Central Universities (No.
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2662015QC031).
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RSC Adv., 2018, 8, 22042–22045 | 22045