2,3-dicyano-5,6-dichloro-p-benzoquinone in 1,4-dioxane 0.05 h; Ambient temperature;

1: 83 percent / diisobutylalumiminium hydride / benzene; hexane / 24 h / Heating 2: 92 percent / dichlorodicyano-p-benzoquinone / dioxane / 0.05 h / Ambient temperature View Scheme

potassium dihydrogenphosphate; Fremy’s salt

1: NaNO2, aq. H3PO4 2: (KO3S)2NO, aq. KH2PO4 View Scheme