1: 47 percent / Heating; reaction in nitrogen atmosphere 2: 86 percent / ethanol / 4 h / Heating View Scheme

1: 47 percent / Heating; reaction in nitrogen atmosphere 2: 61 percent / HCl 15percent / H2O; acetone / 0.25 h / Heating 3: 94 percent / NaOH 3M, H2O2 (30percent) / H2O; tetrahydrofuran / 1 h / Ambient temperature View Scheme

hydrogenchloride; sodium hydroxide; dihydrogen peroxide 1. reflux of INO 940 and 950 in nitrogen atmosphere 2. acetone and aq. HCl, reflux 15 min 3. H2O, THF, reflux 1 h; Yield given. Multistep reaction. Further byproducts given. Title compound not separated from byproducts;

hydrogenchloride; sodium hydroxide; dihydrogen peroxide 1. reflux of INO 940 and 950 in nitrogen atmosphere 2. acetone and aq. HCl, reflux 15 min 3. H2O, THF, reflux 1 h; Yield given. Multistep reaction. Further byproducts given. Title compound not separated from byproducts;