phosphoric acid; orthoarsenic acid

1: arsenic acid; aqueous sulfuric acid 2: SnCl2+2 H2O; ethanol 3: syrupy H3PO4; H3aso4 View Scheme

1: SnCl2+2 H2O; ethanol 2: syrupy H3PO4; H3aso4 View Scheme

1: arsenic acid; aqueous sulfuric acid 2: SnCl2+2 H2O; ethanol 3: syrupy H3PO4; H3aso4 View Scheme

in N,N-dimethyl-formamide other Radiation; subjected to 300-W microwave irradn. at 250°C for 5 min; cooled, pptd. (CH2Cl2/Et2O), recrystd.;

bis(1,5-cyclooctadiene)nickel (0); sodium hexamethyldisilazane in benzene T=80°C; 20 h; Inert atmosphere;

bis(1,5-cyclooctadiene)nickel (0); potassium tert-butylate in benzene T=80°C; 20 h; Inert atmosphere;

ferrous acetate; potassium hexamethylsilazane in benzene T=80°C; 20 h; Inert atmosphere;

1.1: oxygen / 0.5 h / Reflux 2.1: potassium hexacyanoferrate(III); sodium hydroxide; water / 2 h / Cooling with ice 2.2: pH ~ 8 3.1: phosphorus pentachloride; trichlorophosphate / 8 h / Inert atmosphere; Reflux 4.1: potassium phosphate / tri-cyclo-hexyl-phosphine; tris-(dibenzylideneacetone)dipalladium(0) / 1,4-dioxane; water / 80 - 100 °C / Inert atmosphere View Scheme

benzene Erhitzen des nach der Hydrolyse erhaltenen Reaktionsprodukts mit Nitrobenzol auf 100grad;