Scheme 23. Persulfurated Coronene.
Reagents and conditions: (a)40 phenylmethanethiol, NaH, DMI, 0 °C to rt, 16 h; (b) (1) Li, THF, MeOH, NH3, −78 °C to rt, 4 h, (2) HCl/H2O2/water, rt; (c) NaBH4.
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