摘要:
                                It was shown that the recyclization of enamino ketones (hydrogenated derivatives of benzimidazole), which proceeds in an acid medium, leads to 6-azabicyclo[3.2.1]-oct-6-en-8-ones. The reactions of these with nucleophilic reagents proceed primarily at the carbonyl group, while reactions with an excess of organometallic reagents with subsequent oxidation lead to stable nitroxide radicals (derivatives of 6-azabicyclo[3.2.l]octane).