反应详情

11.8 g of 3-chloro-5,6,7,8-tetrahydro-6-(4-phenylbutyryl)pyrido[4,3-c]pyridazine and 60 cc of hydrazine hydrate are stirred at a bath temperature of 50° for 53 hours with the addition of 50 cc of dioxane. The mixture is worked up as described in Example 10. The gentisinate of the title compound has a M.P. of 203°-205° (decomp., from methanol/water 2:1).