Abstract
N, N-Dimethyl- and N-methyl-N-(β-carbethoxyethyl)-N1-(o-carbethoxyphenyl) acetamidines were synthesized by reaction of diethylacetals of N, N-dimethyl- and N-methyl-N-(β-carbethoxyethyl) acetamides with ethyl anthranilate. The thermal cyclization of these amidines proceeds in different ways — 2-dimethylamino-4-quinolone is formed in the first case, and 2, 3-dimethyl-4-quinazolone is formed in the second.
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