反应详情

1.2 g (3.1 mmol) of 1-[2-nitro-4-(5-methyl-3-oxo-2,3,4,5-tetrahydro-6-pyridazinyl)-phenyl]-piperidine-4-carboxylic acid ethyl ester are heated under reflux in a solution of 0.4 g (9.3 mmol) of sodium hydroxide in 40 ml of methoxyethanol.