反应详情

The procedure is carried out as in Step A of Example 6, but starting with 57.4 g (0.25 mol) of 6-acetamido-4-methoxyquinaldine, prepared according to J. Amer. Chem. Soc., 1948, 70, 4065, and 100 cm3 of a 40% aqueous dimethylamine solution in 250 cm3 of acetic acid heated at 100° C. for 2 hours in a 1-dm3 autoclave. 38.71 g (77%) of 4-dimethylamino-6-aminoquinaldine are then obtained, after acid-base purification, on carrying out the procedure as in Step A of Example 6.

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