1: sulfuric acid; silver nitrate; (NH4)2S2O8 / water / 1.5 h / 60 - 90 °C
2: selenium(IV) oxide; acetic acid / 1 h / 100 °C
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参考文献
H. Lundbeck A/S; Kilburn, John Paul; Rasmussen, Lars Kyhn; Jessing, Mikkel; Eldemenky, Eman Mohammed; Chen, Bin; Jiang, Yu; Hopper, Allen T.
Patent: US2014/107340 A1, 2014 ;